macOS: hide popups when window is resized (issue #1082)

https://www.formdev.com/flatlaf/typography/#text_styles

Theme Editor: added to preview

.editorconfig

@@ -7,6 +7,11 @@ charset = latin1
 indent_style = tab
 indent_size = 4
 
+[{*.yaml,*.yml}]
+end_of_line = lf
+indent_style = space
+indent_size = 2
+
 [*.java]
 indent_style = tab
 ij_continuation_indent_size = 4

.github/actions/cache-gradle/action.yml

@@ -0,0 +1,32 @@
+# https://docs.github.com/en/actions/tutorials/create-actions/create-a-composite-action#creating-a-composite-action-within-the-same-repository
+
+# cache uses two files:
+#
+#   - gradle-wrapper-<os>-<arch>-<hash>:
+#       contains the Gradle wrapper/distribution (~/.gradle/wrapper)
+#       and is updated when the Gradle version changed
+#   - gradle-caches-<os>-<arch>-<hash>:
+#       contains the Gradle caches (~/.gradle/caches), buildSrc/build and buildSrc/.gradle
+#       and is updated when Gradle related files were changed
+#       buildSrc/.gradle is needed so that buildSrc tasks are UP-TO-DATE
+
+name: 'Cache Gradle'
+runs:
+  using: "composite"
+  steps:
+
+    - name: Cache '.gradle/wrapper'
+      uses: actions/cache@v4
+      with:
+        key: gradle-wrapper-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles( 'gradle/wrapper/gradle-wrapper.properties' ) }}
+        path: |
+          ~/.gradle/wrapper
+
+    - name: Cache '.gradle/caches' and 'buildSrc/build'
+      uses: actions/cache@v4
+      with:
+        key: gradle-caches-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles( '**/*.gradle*', 'gradle/**', 'gradle.properties', 'buildSrc/src/**' ) }}
+        path: |
+          ~/.gradle/caches
+          buildSrc/build
+          buildSrc/.gradle

.github/workflows/ci.yml

@@ -14,6 +14,7 @@ on:
       - '.*'
       - '**/.settings/**'
       - 'flatlaf-core/svg/**'
+      - 'flatlaf-natives/**'
       - 'flatlaf-testing/dumps/**'
       - 'flatlaf-testing/misc/**'
       - 'images/**'
@@ -22,46 +23,50 @@ jobs:
   build:
     runs-on: ubuntu-latest
 
-    strategy:
-      matrix:
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: gradle/actions/wrapper-validation@v4
+
+      - name: Setup Java 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: 21
+          distribution: temurin  # pre-installed on ubuntu-latest
+
+      - name: Cache Gradle
+        uses: ./.github/actions/cache-gradle
+
+
         # test against
         # - Java 8 (minimum requirement)
         # - Java LTS versions (11, 17, ...)
         # - latest Java version(s)
-        java:
-          - 8
-          - 11  # LTS
-          - 17  # LTS
-          - 21  # LTS
-          - 23  # latest
-        toolchain: [""]
-#        include:
-#          - java: 21
-#            toolchain: 22  # latest
 
-    steps:
-      - uses: actions/checkout@v4
+      - name: Build with Java 11 LTS
+        if: github.repository == 'JFormDesigner/FlatLaf'
+        run: ./gradlew build clean -Dtoolchain=11
 
-      - uses: gradle/wrapper-validation-action@v2
-        if: matrix.java == '8'
+      - name: Build with Java 17 LTS
+        if: github.repository == 'JFormDesigner/FlatLaf'
+        run: ./gradlew build clean -Dtoolchain=17
 
-      - name: Setup Java ${{ matrix.java }}
-        uses: actions/setup-java@v4
-        with:
-          java-version: ${{ matrix.java }}
-          distribution: temurin  # Java 8, 11, 17 and 21 are pre-installed on ubuntu-latest
-          cache: gradle
+      - name: Build with Java 21 LTS
+        if: github.repository == 'JFormDesigner/FlatLaf'
+        run: ./gradlew build clean -Dtoolchain=21
 
-      - name: Check with Error Prone
-        if: matrix.java == '11'
-        run: ./gradlew errorprone clean -Dtoolchain=${{ matrix.toolchain }}
+      - name: Build with Java 25 LTS
+        if: github.repository == 'JFormDesigner/FlatLaf'
+        run: ./gradlew build clean -Dtoolchain=25
 
-      - name: Build with Gradle
-        run: ./gradlew build -Dtoolchain=${{ matrix.toolchain }}
 
-      - name: Upload artifacts
+        # build with Java 8 for snapshot
+
+      - name: Build with Java 8
+        run: ./gradlew build
+
+      - name: Upload artifacts to GitHub Actions
         uses: actions/upload-artifact@v4
-        if: matrix.java == '11'
         with:
           name: FlatLaf-build-artifacts
           path: |
@@ -71,40 +76,15 @@ jobs:
             !**/*-sources.jar
 
 
-  snapshot:
-    runs-on: ubuntu-latest
-    needs: build
-    if: |
-      github.event_name == 'push' &&
-      (github.ref == 'refs/heads/main' || startsWith( github.ref, 'refs/heads/develop-' )) &&
-      github.repository == 'JFormDesigner/FlatLaf'
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Setup Java 11
-        uses: actions/setup-java@v4
-        with:
-          java-version: 11
-          distribution: temurin  # pre-installed on ubuntu-latest
-          cache: gradle
-
-      - name: Publish snapshot to oss.sonatype.org
-        run: ./gradlew publish :flatlaf-theme-editor:build -PskipFonts -Dorg.gradle.internal.publish.checksums.insecure=true -Dorg.gradle.parallel=false
+      - name: Publish snapshot to Sonatype Central
+        if: |
+          github.repository == 'JFormDesigner/FlatLaf' &&
+          github.event_name == 'push' &&
+          (github.ref == 'refs/heads/main' || startsWith( github.ref, 'refs/heads/develop-' ))
+        run: ./gradlew publish -PskipFonts -Dorg.gradle.internal.publish.checksums.insecure=true -Dorg.gradle.parallel=false
         env:
-          OSSRH_USERNAME: ${{ secrets.OSSRH_USERNAME }}
-          OSSRH_PASSWORD: ${{ secrets.OSSRH_PASSWORD }}
-
-      - name: Upload theme editor
-        uses: sebastianpopp/ftp-action@releases/v2
-        with:
-          host: ${{ secrets.FTP_SERVER }}
-          user: ${{ secrets.FTP_USERNAME }}
-          password: ${{ secrets.FTP_PASSWORD }}
-          forceSsl: true
-          localDir: "flatlaf-theme-editor/build/libs"
-          remoteDir: "snapshots"
-          options: "--only-newer --no-recursion --verbose=1"
+          SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
+          SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
 
 
   release:
@@ -118,39 +98,29 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Setup Java 11
+      - name: Setup Java 21
         uses: actions/setup-java@v4
         with:
-          java-version: 11
+          java-version: 21
           distribution: temurin  # pre-installed on ubuntu-latest
-          cache: gradle
 
-      - name: Release a new stable version to Maven Central
-        run: ./gradlew publish :flatlaf-demo:build :flatlaf-theme-editor:build -PskipFonts -Prelease -Dorg.gradle.parallel=false
+      - name: Cache Gradle
+        uses: ./.github/actions/cache-gradle
+
+      - name: Release a new stable version to Maven Central and build demo and theme editor
+        run: ./gradlew publishToSonatype closeSonatypeStagingRepository :flatlaf-demo:build :flatlaf-theme-editor:build -PskipFonts -Prelease -Dorg.gradle.parallel=false
         env:
-          OSSRH_USERNAME: ${{ secrets.OSSRH_USERNAME }}
-          OSSRH_PASSWORD: ${{ secrets.OSSRH_PASSWORD }}
+          SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
+          SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
           SIGNING_KEY:      ${{ secrets.SIGNING_KEY }}
           SIGNING_PASSWORD: ${{ secrets.SIGNING_PASSWORD }}
 
-      - name: Upload demo
-        uses: sebastianpopp/ftp-action@releases/v2
-        with:
-          host: ${{ secrets.FTP_SERVER }}
-          user: ${{ secrets.FTP_USERNAME }}
-          password: ${{ secrets.FTP_PASSWORD }}
-          forceSsl: true
-          localDir: "flatlaf-demo/build/libs"
-          remoteDir: "."
-          options: "--only-newer --no-recursion --verbose=1"
+      - name: Install lftp
+        run: sudo apt-get -y install lftp
 
-      - name: Upload theme editor
-        uses: sebastianpopp/ftp-action@releases/v2
-        with:
-          host: ${{ secrets.FTP_SERVER }}
-          user: ${{ secrets.FTP_USERNAME }}
-          password: ${{ secrets.FTP_PASSWORD }}
-          forceSsl: true
-          localDir: "flatlaf-theme-editor/build/libs"
-          remoteDir: "."
-          options: "--only-newer --no-recursion --verbose=1"
+      - name: Upload demo and theme editor
+        run: >
+          lftp -c "set ftp:ssl-force true;
+            open -u ${{ secrets.FTP_USERNAME }},${{ secrets.FTP_PASSWORD }} ${{ secrets.FTP_SERVER }};
+            mput flatlaf-demo/build/libs/flatlaf-demo-*.jar;
+            mput flatlaf-theme-editor/build/libs/flatlaf-theme-editor-*.jar"

.github/workflows/error-prone.yml

@@ -0,0 +1,40 @@
+# https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions
+# https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-java-with-gradle
+
+name: Error Prone
+
+on:
+  push:
+    branches:
+      - '*'
+    tags:
+      - '[0-9]*'
+    paths-ignore:
+      - '**.md'
+      - '.*'
+      - '**/.settings/**'
+      - 'flatlaf-core/svg/**'
+      - 'flatlaf-natives/**'
+      - 'flatlaf-testing/dumps/**'
+      - 'flatlaf-testing/misc/**'
+      - 'images/**'
+
+jobs:
+  error-prone:
+    runs-on: ubuntu-latest
+    if: github.repository == 'JFormDesigner/FlatLaf'
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Java 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: 21
+          distribution: temurin  # pre-installed on ubuntu-latest
+
+      - name: Cache Gradle
+        uses: ./.github/actions/cache-gradle
+
+      - name: Check with Error Prone
+        run: ./gradlew errorprone

.github/workflows/fonts.yml

@@ -34,29 +34,31 @@ jobs:
         steps:
             - uses: actions/checkout@v4
 
-            - name: Setup Java 11
+            - name: Setup Java 21
               uses: actions/setup-java@v4
               with:
-                  java-version: 11
+                  java-version: 21
                   distribution: temurin  # pre-installed on ubuntu-latest
-                  cache: gradle
+
+            - name: Cache Gradle
+              uses: ./.github/actions/cache-gradle
 
             - name: Build with Gradle
               run: ./gradlew :flatlaf-fonts-${{ matrix.font }}:build
               if: startsWith( github.ref, format( 'refs/tags/fonts/{0}-', matrix.font ) ) != true
 
-            - name: Publish snapshot to oss.sonatype.org
+            - name: Publish snapshot to Sonatype Central
               run: ./gradlew :flatlaf-fonts-${{ matrix.font }}:publish -Dorg.gradle.internal.publish.checksums.insecure=true
               env:
-                  OSSRH_USERNAME: ${{ secrets.OSSRH_USERNAME }}
-                  OSSRH_PASSWORD: ${{ secrets.OSSRH_PASSWORD }}
+                  SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
+                  SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
               if: github.ref == 'refs/heads/main' || startsWith( github.ref, 'refs/heads/develop-' )
 
             - name: Release a new stable version to Maven Central
               run: ./gradlew :flatlaf-fonts-${{ matrix.font }}:build :flatlaf-fonts-${{ matrix.font }}:publish -Prelease
               env:
-                  OSSRH_USERNAME: ${{ secrets.OSSRH_USERNAME }}
-                  OSSRH_PASSWORD: ${{ secrets.OSSRH_PASSWORD }}
+                  SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
+                  SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
                   SIGNING_KEY:      ${{ secrets.SIGNING_KEY }}
                   SIGNING_PASSWORD: ${{ secrets.SIGNING_PASSWORD }}
               if: startsWith( github.ref, format( 'refs/tags/fonts/{0}-', matrix.font ) )

.github/workflows/natives.yml

@@ -21,33 +21,111 @@ jobs:
         strategy:
             matrix:
                 os:
-                    - windows
-                    - macos
-                    - ubuntu
+                    - windows-latest
+                    - macos-latest
+                    - ubuntu-latest
+                    - ubuntu-24.04-arm
 
-        runs-on: ${{ matrix.os }}-latest
+        runs-on: ${{ matrix.os }}
 
         steps:
             - uses: actions/checkout@v4
 
-            - uses: gradle/wrapper-validation-action@v2
+            - uses: gradle/actions/wrapper-validation@v4
 
-            - name: Setup Java 11
+            - name: apt update (Linux)
+              if: matrix.os == 'ubuntu-latest' || matrix.os == 'ubuntu-24.04-arm'
+              run: sudo apt-get update
+
+            - name: install libxt-dev and libgtk-3-dev (Linux)
+              if: matrix.os == 'ubuntu-latest' || matrix.os == 'ubuntu-24.04-arm'
+              run: sudo apt-get install libxt-dev libgtk-3-dev
+
+#           - name: Download libgtk-3.so for arm64 (Linux)
+#             if: matrix.os == 'ubuntu-latest'
+#             working-directory: flatlaf-natives/flatlaf-natives-linux/lib/aarch64
+#             run: |
+#               pwd
+#               ls -l /usr/lib/x86_64-linux-gnu/libgtk*
+#               wget --no-verbose https://ports.ubuntu.com/pool/main/g/gtk%2b3.0/libgtk-3-0_3.24.18-1ubuntu1_arm64.deb
+#               ls -l
+#               ar -x libgtk-3-0_3.24.18-1ubuntu1_arm64.deb data.tar.xz
+#               tar -xvf data.tar.xz --wildcards --to-stdout "./usr/lib/aarch64-linux-gnu/libgtk-3.so.0.*" > libgtk-3.so
+#               rm libgtk-3-0_3.24.18-1ubuntu1_arm64.deb data.tar.xz
+#               ls -l
+
+#           - name: install g++-aarch64-linux-gnu (Linux)
+#             if: matrix.os == 'ubuntu-latest'
+#             run: sudo apt-get install g++-aarch64-linux-gnu
+
+            - name: Setup Java 21
               uses: actions/setup-java@v4
               with:
-                  java-version: 11
+                  java-version: 21
                   distribution: temurin
-                  cache: gradle
+
+            - name: Cache Gradle
+              uses: ./.github/actions/cache-gradle
 
             - name: Build with Gradle
               # --no-daemon is necessary on Windows otherwise caching Gradle would fail with:
               #   tar.exe: Couldn't open ~/.gradle/caches/modules-2/modules-2.lock: Permission denied
               run: ./gradlew build-natives --no-daemon
 
+            - name: Sign Windows DLLs
+              if: matrix.os == 'windows-latest'
+              uses: skymatic/code-sign-action@v3
+              with:
+                certificate: '${{ secrets.CODE_SIGN_CERT_BASE64 }}'
+                password: '${{ secrets.CODE_SIGN_CERT_PASSWORD }}'
+                certificatesha1: '${{ secrets.CODE_SIGN_CERT_SHA1 }}'
+                folder: 'flatlaf-core/src/main/resources/com/formdev/flatlaf/natives'
+
+            - name: Sign macOS natives
+              if: matrix.os == 'DISABLED--macos-latest'
+              env:
+                CERT_BASE64: ${{ secrets.CODE_SIGN_CERT_BASE64 }}
+                CERT_PASSWORD: ${{ secrets.CODE_SIGN_CERT_PASSWORD }}
+                CERT_IDENTITY: ${{ secrets.CODE_SIGN_CERT_IDENTITY }}
+              run: |
+                # https://docs.github.com/en/actions/use-cases-and-examples/deploying/installing-an-apple-certificate-on-macos-runners-for-xcode-development
+                # create variables
+                CERTIFICATE_PATH=$RUNNER_TEMP/cert.p12
+                KEYCHAIN_PATH=$RUNNER_TEMP/signing.keychain-db
+                KEYCHAIN_PASSWORD=$CERT_PASSWORD
+                # decode certificate
+                printenv CERT_BASE64 | base64 --decode > $CERTIFICATE_PATH
+                # create temporary keychain
+                security create-keychain -p "$KEYCHAIN_PASSWORD" $KEYCHAIN_PATH
+                security set-keychain-settings -lut 21600 $KEYCHAIN_PATH
+                security unlock-keychain -p "$KEYCHAIN_PASSWORD" $KEYCHAIN_PATH
+                # import certificate to keychain
+                security import $CERTIFICATE_PATH -P "$CERT_PASSWORD" -A -t cert -f pkcs12 -k $KEYCHAIN_PATH
+                # set partition list (required for codesign)
+                security set-key-partition-list -S apple-tool:,apple: -k "$KEYCHAIN_PASSWORD" $KEYCHAIN_PATH
+                # add keychain to keychain search list
+                security list-keychains -d user -s $KEYCHAIN_PATH
+                # sign code
+                codesign --sign "$CERT_IDENTITY" --force --verbose=4 --timestamp \
+                  flatlaf-core/src/main/resources/com/formdev/flatlaf/natives/libflatlaf-macos-*.dylib
+                codesign --display --verbose=4 flatlaf-core/src/main/resources/com/formdev/flatlaf/natives/libflatlaf-macos-*.dylib
+                # cleanup
+                security delete-keychain $KEYCHAIN_PATH
+
+            - name: Set artifacts pattern
+              shell: bash
+              run: |
+                case ${{ matrix.os }} in
+                    windows-latest)    echo "artifactPattern=flatlaf-windows-*.dll"      >> $GITHUB_ENV ;;
+                    macos-latest)      echo "artifactPattern=libflatlaf-macos-*.dylib"   >> $GITHUB_ENV ;;
+                    ubuntu-latest)     echo "artifactPattern=libflatlaf-linux-x86_64.so" >> $GITHUB_ENV ;;
+                    ubuntu-24.04-arm)  echo "artifactPattern=libflatlaf-linux-arm64.so"  >> $GITHUB_ENV ;;
+                esac
+
             - name: Upload artifacts
               uses: actions/upload-artifact@v4
               with:
                   name: FlatLaf-natives-build-artifacts-${{ matrix.os }}
                   path: |
-                      flatlaf-core/src/main/resources/com/formdev/flatlaf/natives
+                      flatlaf-core/src/main/resources/com/formdev/flatlaf/natives/${{ env.artifactPattern }}
                       flatlaf-natives/flatlaf-natives-*/build

.github/workflows/pr-snapshots.yml

@@ -21,17 +21,19 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Setup Java 11
+      - name: Setup Java 21
         uses: actions/setup-java@v4
         with:
-          java-version: 11
+          java-version: 21
           distribution: temurin  # pre-installed on ubuntu-latest
-          cache: gradle
 
-      - name: Publish PR snapshot to oss.sonatype.org
+      - name: Cache Gradle
+        uses: ./.github/actions/cache-gradle
+
+      - name: Publish PR snapshot to Sonatype Central
         run: >
           ./gradlew publish -PskipFonts -Dorg.gradle.internal.publish.checksums.insecure=true -Dorg.gradle.parallel=false
           -Pgithub.event.pull_request.number=${{ github.event.pull_request.number }}
         env:
-          OSSRH_USERNAME: ${{ secrets.OSSRH_USERNAME }}
-          OSSRH_PASSWORD: ${{ secrets.OSSRH_PASSWORD }}
+          SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
+          SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}

.gitignore

@@ -5,6 +5,7 @@ build/
 .project
 .settings/
 .idea/
+.consulo/
 out/
 *.iml
 *.ipr

CHANGELOG.md

@@ -1,6 +1,225 @@
 FlatLaf Change Log
 ==================
 
+## 3.7.1-SNAPSHOT
+
+- ComboBox: Added UI property `ComboBox.buttonFocusedEditableBackground`. (issue
+  #1068)
+- Dialog: Some client properties (e.g. `JRootPane.titleBarShowTitle`) did not
+  work before the dialog was made visible. (issue #1081)
+- Popup: Fixed scrolling popup painting issue on Windows 10 when a glass pane is
+  visible and frame is maximized. (issue #1071)
+- Slider: Styling `thumbSize` or `focusWidth` did not update slider size/layout.
+  (PR #1074)
+- ToolBar: Grip disappeared when switching between Look and Feels. (issue #1075)
+- macOS: Popups (menus and combobox lists) were not always hidden when window is
+  resized. (issue #1082)
+- Extras:
+  - UI defaults inspector: Fixed NPE if color of `FlatLineBorder` is null. Also
+    use `FlatLineBorder` line color as cell background color in "Value" column.
+    (PR #1080)
+  - `FlatDesktop`: Avoid unnecessary logging if desktop is not supported (e.g.
+    on NixOS with Plasma/KDE desktop).
+
+
+## 3.7
+
+#### New features and improvements
+
+- System File Chooser allows using **operating system file dialogs** in Java
+  Swing applications. (PR #988)
+- Zooming API. (PR #1051)
+- Icons:
+  - Support scaling Laf icons (checkbox, radiobutton, etc). (issue #1061)
+  - Scale checkbox and radiobutton icons when using
+    [text styles](https://www.formdev.com/flatlaf/typography/#text_styles)
+    `large`, `medium`, `small` and `mini`.
+- TabbedPane: Added icon-only tab mode, which shows tab icons but hides tab
+  titles. Tab titles are used in "Show Hidden Tabs" popup menu. (set client
+  property `JTabbedPane.tabWidthMode` to `"iconOnly"`)
+- TabbedPane: In scroll tab layout, propagate mouse wheel events to ancestors.
+  This allows mouse wheel scrolling if JTabbedPane is inside a JScrollPane. (PR
+  #1030)
+
+#### Fixed bugs
+
+- CheckBox and RadioButton: Fixed styling of custom icon. Also fixed focus width
+  (and preferred size) if using custom icon. (PR #1060)
+- TabbedPane: In "Show Hidden Tabs" popup menu, do not show text "x. Tab" if tab
+  has icon but no title. (issue #1062)
+- TextField: Fixed wrong leading/trailing icon placement if border is set to
+  `null`. (issue #1047)
+- Extras: UI defaults inspector: Exclude inspector window from being blocked by
+  modal dialogs. (issue #1048)
+- JideButton, JideToggleButton, JideSplitButton and JideToggleSplitButton: Paint
+  border in button style `TOOLBAR_STYLE` if in selected state. (issue #1045)
+- IntelliJ Themes: Fixed problem when using theme instance more than once when
+  switching to that theme. (issue #990)
+
+
+## 3.6.2
+
+#### New features and improvements
+
+- If using `FlatLaf.registerCustomDefaultsSource( "com.myapp.themes" )` and
+  named Java modules, it is no longer necessary to add `opens com.myapp.themes;`
+  to `module-info.java`. (issue #1026)
+- Extras: Made animated theme change (class `FlatAnimatedLafChange`) smoother.
+
+#### Fixed bugs
+
+- Tree and List: Fixed painting of rounded drop backgrounds. (issue #1023)
+- Popup: Showing tooltip in inactive window brought that window to front (made
+  it active) and potentially hid the previously active window. (issue #1037)
+- Popup: No longer reuse popup windows for menus to avoid immediately closing
+  dialogs on ChromeOS. (issue #1029)
+- macOS: Fixed window "flashing" when switching from a light to a dark theme (or
+  vice versa). Especially when using animated theme changer (see
+  [FlatLaf Extras](flatlaf-extras)).
+
+#### Incompatibilities
+
+- FlatLaf properties files are now loaded using the UTF-8 character encoding
+  instead of ISO 8859-1. In usual properties files you will not notice any
+  difference because they use only ASCII characters, but if you've put localized
+  (non-English) texts (e.g. German umlauts) into your properties files, you need
+  to convert them to UTF-8. Properties files created with the FlatLaf Theme
+  Editor already use UTF-8, including in older versions. (issue #1031)
+
+
+## 3.6.1
+
+- Extras: Support JSVG 2.0.0. Minimum JSVG version is now 1.6.0. (issue #997)
+- FlatLaf window decorations (Windows 10/11 only): Improved diagonal window
+  resizing on top-left and top-right window corners. Top window resize area now
+  also covers iconify/maximize/close buttons. (issue #1015)
+- ToggleButton: Styling `selectedForeground` did not work if `foreground` is
+  also styled. (issue #1017)
+- JideSplitButton: Fixed updating popup when switching theme. (issue #1000)
+- IntelliJ Themes: Fixed logging false errors when loading 3rd party
+  `.theme.json` files. (issue #990)
+- Linux: Popups appeared in wrong position on multi-screen setup if primary
+  display is located below or right to secondary display. (see
+  [NetBeans issue #8532](https://github.com/apache/netbeans/issues/8532))
+- macOS: Fixed popup flickering after theme change. (issue #1009)
+- macOS with JetBrains Runtime: Fixed sometimes empty popups. (issue #1019)
+
+
+## 3.6
+
+#### New features and improvements
+
+- macOS: Re-enabled rounded popup border (see PR #772) on macOS 14.4+ (was
+  disabled in 3.5.x).
+- Increased contrast of text for better readability: (PR #972; issue #762)
+  - In **FlatLaf Dark**, **FlatLaf Darcula** and many dark IntelliJ themes, made
+    all text colors brighter.
+  - In **FlatLaf Light**, **FlatLaf IntelliJ** and many light IntelliJ themes,
+    made disabled text colors slightly darker.
+  - In **FlatLaf macOS Light**, made disabled text colors darker.
+  - In **FlatLaf macOS Dark**, made text colors of "default" button and selected
+    ToggleButton lighter.
+- CheckBox: Support styling indeterminate state of
+  [tri-state check boxes](https://www.javadoc.io/doc/com.formdev/flatlaf-extras/latest/com/formdev/flatlaf/extras/components/FlatTriStateCheckBox.html).
+  (PR #936; issue #919)
+- List: Support for alternate row highlighting. (PR #939)
+- Tree: Support for alternate row highlighting. (PR #903)
+- Tree: Support wide cell renderer. (issue #922)
+- ScrollBar: Use rounded thumb also on Windows (as on macOS and Linux) and made
+  thumb slightly darker/lighter. (issue #918)
+- Extras: `FlatSVGIcon` color filters now can access painting component to
+  implement component state based color mappings. (issue #906)
+- Linux:
+  - Rounded iconify/maximize/close buttons if using FlatLaf window decorations.
+    (PR #971)
+  - Added `libflatlaf-linux-arm64.so` for Linux on ARM64. (issue #899)
+  - Use X11 window manager events to resize window, if FlatLaf window
+    decorations are enabled. This gives FlatLaf windows a more "native" feeling.
+    (issue #866)
+- IntelliJ Themes:
+  - Updated to latest versions and fixed various issues.
+  - Support customizing through properties files. (issue #824)
+- SwingX: Support `JXTipOfTheDay` component. (issue #980)
+- Support key prefixes for Linux desktop environments (e.g. `[gnome]`, `[kde]`
+  or `[xfce]`) in properties files. (issue #974)
+- Support custom key prefixes (e.g. `[win10]` or `[test]`) in properties files.
+  (issue #649)
+- Support multi-prefixed keys (e.g. `[dark][gnome]TitlePane.buttonBackground`).
+  The value is only used if all prefixes match current platform/theme.
+- Support new component border color to indicate success state (set client
+  property `JComponent.outline` to `success`). (PR #982, issue #945)
+- Fonts: Updated **Inter** to
+  [v4.1](https://github.com/rsms/inter/releases/tag/v4.1).
+
+#### Fixed bugs
+
+- Button: Fixed background and foreground colors for `borderless` and
+  `toolBarButton` style default buttons (`JButton.isDefaultButton()` is `true`).
+  (issue #947)
+- FileChooser: Improved performance when navigating to large directories with
+  thousands of files. (issue #953)
+- PopupFactory: Fixed NPE on Windows 10 when `owner` is `null`. (issue #952)
+- Popup: On Windows 10, drop shadow of heavy-weight popup was not updated if
+  popup moved/resized. (issue #942)
+- FlatLaf window decorations:
+  - Minimize and maximize icons were not shown for custom scale factors less
+    than 100% (e.g. `-Dflatlaf.uiScale=75%`). (issue #951)
+  - Linux: Fixed occasional maximizing of window when single-clicking the
+    window's title bar. (issue #637)
+- Styling: MigLayout visual padding was not updated after applying style to
+  Button, ComboBox, Spinner, TextField (and subclasses) and ToggleButton. (issue
+  #965)
+- Linux: Popups (menus and combobox lists) were not hidden when window is moved,
+  resized, maximized, restored, iconified or switched to another window. (issue
+  #962)
+- Fixed loading FlatLaf UI delegate classes when using FlatLaf in special
+  application where multiple class loaders are involved. E.g. in Eclipse plugin
+  or in LibreOffice extension. (issues #955 and #851)
+- HTML: Fixed rendering of `<hr noshade>` in dark themes. (issue #932)
+- TextComponents: `selectAllOnFocusPolicy` related changes:
+  - No longer select all text if selection (or caret position) was changed by
+    application and `selectAllOnFocusPolicy` is `once` (the default). (issue
+    #983)
+  - FormattedTextField and Spinner: `selectAllOnFocusPolicy = once` behaves now
+    as `always` (was `never` before), which means that all text is selected when
+    component gains focus. This is because of special behavior of
+    `JFormattedTextField` that did not allow implementation of `once`.
+  - Client property `JTextField.selectAllOnFocusPolicy` now also works on
+    (editable) `JComboBox` and on `JSpinner`.
+  - Added client property `JTextField.selectAllOnMouseClick` to override UI
+    property `TextComponent.selectAllOnMouseClick`. (issue #961)
+  - For `selectAllOnMouseClick = true`, clicking with the mouse into the text
+    field, to focus it, now always selects all text, even if
+    `selectAllOnFocusPolicy` is `once`.
+
+#### Incompatibilities
+
+- IntelliJ Themes:
+  - Theme prefix in `IntelliJTheme$ThemeLaf.properties` changed from
+    `[theme-name]` to `{theme-name}`.
+  - Renamed classes in package
+    `com.formdev.flatlaf.intellijthemes.materialthemeuilite` from `Flat<theme>`
+    to `FlatMT<theme>`.
+  - Removed `Gruvbox Dark Medium` and `Gruvbox Dark Soft` themes.
+- Prefixed keys in properties files (e.g. `[dark]Button.background` or
+  `[win]Button.arc`) are now handled earlier than before. In previous versions,
+  prefixed keys always had higher priority than unprefixed keys and did always
+  overwrite unprefixed keys. Now prefixed keys are handled in same order as
+  unprefixed keys, which means that if a key is prefixed and unprefixed (e.g.
+  `[win]Button.arc` and `Button.arc`), the one which is last specified in
+  properties file is used.\
+  Following worked in previous versions, but now `Button.arc` is always `6`:
+  ~~~properties
+  [win]Button.arc = 12
+  Button.arc = 6
+  ~~~
+  This works in new (and old) versions:
+  ~~~properties
+  Button.arc = 6
+  [win]Button.arc = 12
+  ~~~
+
+
 ## 3.5.4
 
 #### Fixed bugs

README.md

@@ -35,7 +35,11 @@ Sponsors
 
 ### Current Sponsors
 
-[![None Sponsors](images/none-sponsors.png)](https://www.formdev.com/flatlaf/sponsor/)
+<a href="https://www.soptim.de/"><img src="https://www.formdev.com/flatlaf/sponsor/soptim.svg" width="200" alt="SOPTIM" title="SOPTIM - your expert in software solutions for the energy industry"></a>
+&nbsp; &nbsp; &nbsp; &nbsp;
+<a href="https://exocharts.com/"><img src="https://www.formdev.com/flatlaf/sponsor/Exocharts.png" width="200" alt="Exocharts" title="Exocharts - Professional Grade OrderFlow"></a>
+
+<!-- [![None Sponsors](images/none-sponsors.png)](https://www.formdev.com/flatlaf/sponsor/) -->
 
 [Become a Sponsor](https://www.formdev.com/flatlaf/sponsor/)
 
@@ -70,21 +74,27 @@ build script:
 
 Otherwise, download `flatlaf-<version>.jar` here:
 
-[![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.formdev/flatlaf/badge.svg?style=flat-square&color=007ec6)](https://maven-badges.herokuapp.com/maven-central/com.formdev/flatlaf)
+[![Maven Central](https://img.shields.io/maven-central/v/com.formdev/flatlaf?style=flat-square)](https://central.sonatype.com/artifact/com.formdev/flatlaf)
 
-See also
-[Native Libraries distribution](https://www.formdev.com/flatlaf/native-libraries/)
-for instructions on how to redistribute FlatLaf native libraries with your
-application.
+- See
+  [Native Libraries distribution](https://www.formdev.com/flatlaf/native-libraries/)
+  for instructions on how to redistribute FlatLaf native libraries with your
+  application.
+- If repackaging FlatLaf (and other) JARs into a single fat/uber JAR:
+  - add `Multi-Release: true` to `META-INF/MANIFEST.MF`
+  - keep `META-INF/versions/` and `META-INF/services/` directories
+  - merge content of equally named files in `META-INF/services/`
+- If using obfuscation/minimizing/shrinking tools (e.g. **ProGuard** or
+  **Shadow**), exclude package `com.formdev.flatlaf` and all sub-packages.
 
 
 ### Snapshots
 
 FlatLaf snapshot binaries are available on
-[Sonatype OSSRH](https://oss.sonatype.org/content/repositories/snapshots/com/formdev/flatlaf/).
+[Sonatype Central](https://central.sonatype.com/service/rest/repository/browse/maven-snapshots/com/formdev/flatlaf/).
 To access the latest snapshot, change the FlatLaf version in your dependencies
-to `<version>-SNAPSHOT` (e.g. `0.27-SNAPSHOT`) and add the repository
-`https://oss.sonatype.org/content/repositories/snapshots/` to your build (see
+to `<version>-SNAPSHOT` (e.g. `3.7-SNAPSHOT`) and add the repository
+`https://central.sonatype.com/repository/maven-snapshots/` to your build (see
 [Maven](https://maven.apache.org/guides/mini/guide-multiple-repositories.html)
 and
 [Gradle](https://docs.gradle.org/current/userguide/declaring_repositories.html#sec:declaring_custom_repository)
@@ -182,11 +192,18 @@ Applications using FlatLaf
   relational data browsing tool
 - ![Hot](images/hot.svg) [MagicPlot](https://magicplot.com/) (**commercial**) -
   Software for nonlinear fitting, plotting and data analysis
-- ![New](images/new.svg) [Constellation](https://www.constellation-app.com/) -
-  Data Visualization and Analytics (based on NetBeans platform)
-- ![New](images/new.svg)
-  [Kafka Visualizer](https://github.com/kumait/kafkavisualizer) - Kafka GUI
+- [Constellation](https://www.constellation-app.com/) - Data Visualization and
+  Analytics (based on NetBeans platform)
+- [Kafka Visualizer](https://github.com/kumait/kafkavisualizer) - Kafka GUI
   client
+- ![New](images/new.svg)
+  [RedisFront](https://github.com/dromara/RedisFront/blob/master/README_EN.md) -
+  Cross-platform redis GUI
+- ![New](images/new.svg)
+  [Zettelkasten](https://github.com/Zettelkasten-Team/Zettelkasten) - knowledge
+  management tool
+- ![New](images/new.svg) [QStudio](https://www.timestored.com/qstudio/) - free
+  SQL editor
 
 ### Security
 
@@ -195,11 +212,9 @@ Applications using FlatLaf
 - ![Hot](images/hot.svg)
   [Burp Suite Professional and Community Edition](https://portswigger.net/burp/pro)
   (**commercial**) - the leading software for web security testing
-- ![New](images/new.svg)
-  [Ghidra](https://github.com/NationalSecurityAgency/ghidra) - a software
+- [Ghidra](https://github.com/NationalSecurityAgency/ghidra) - a software
   reverse engineering (SRE) framework
-- ![New](images/new.svg) [jadx](https://github.com/skylot/jadx) - Dex to Java
-  decompiler
+- [jadx](https://github.com/skylot/jadx) - Dex to Java decompiler
 - [BurpCustomizer](https://github.com/CoreyD97/BurpCustomizer) - adds more
   FlatLaf themes to Burp Suite
 - [Total Validator](https://www.totalvalidator.com/) (**commercial**) - checks
@@ -211,19 +226,26 @@ Applications using FlatLaf
 
 - [jclasslib bytecode viewer](https://github.com/ingokegel/jclasslib)
 - [KeyStore Explorer](https://keystore-explorer.org/)
-- ![New](images/new.svg)
-  [muCommander](https://github.com/mucommander/mucommander) - lightweight
+- [muCommander](https://github.com/mucommander/mucommander) - lightweight
   cross-platform file manager
-- ![New](images/new.svg) [Guiffy](https://www.guiffy.com/) (**commercial**) -
-  advanced cross-platform Diff/Merge
-- ![New](images/new.svg) [HashGarten](https://github.com/jonelo/HashGarten) -
-  cross-platform Swing GUI for Jacksum
+- [Guiffy](https://www.guiffy.com/) (**commercial**) - advanced cross-platform
+  Diff/Merge
+- [HashGarten](https://github.com/jonelo/HashGarten) - cross-platform Swing GUI
+  for Jacksum
 - [Pseudo Assembler IDE](https://github.com/tomasz-herman/PseudoAssemblerIDE) -
   IDE for Pseudo-Assembler
 - [Linotte](https://github.com/cpc6128/LangageLinotte) - French programming
   language created to learn programming
 - [lsfusion platform](https://github.com/lsfusion/platform) - information
   systems development platform
+- ![New](images/new.svg) [Consulo](https://github.com/consulo/consulo) - open
+  source cross-platform multi-language IDE (Java, .NET, JS, etc)
+- [Convertigo](https://github.com/convertigo/convertigo) - low code & no code
+  mobile & web platform
+- ![New](images/new.svg) [EduMIPS64](https://github.com/EduMIPS64/edumips64) -
+  visual MIPS64 CPU simulator
+- ![New](images/new.svg) [Launch4j](https://launch4j.sourceforge.net/) -
+  cross-platform Java executable wrapper
 
 ### Electrical
 
@@ -231,6 +253,11 @@ Applications using FlatLaf
   designing, simulating and explaining digital circuits
 - [Logisim-evolution](https://github.com/logisim-evolution/logisim-evolution) -
   Digital logic design tool and simulator
+- ![New](images/new.svg) [OpenPnP](https://github.com/openpnp/openpnp) - SMT
+  Pick and Place Hardware and Software
+- ![New](images/new.svg)
+  [TrainControl](https://github.com/bob123456678/TrainControl) - control Marklin
+  / Trix / DCC digital model train layout
 - [Makelangelo Software](https://github.com/MarginallyClever/Makelangelo-software) -
   for plotters, especially the wall-hanging polargraph
 - [GUIslice Builder](https://github.com/ImpulseAdventure/GUIslice-Builder) - GUI
@@ -245,8 +272,10 @@ Applications using FlatLaf
 
 - ![Hot](images/hot.svg) [jAlbum](https://jalbum.net/) (**commercial**) -
   creates photo album websites
-- ![New](images/new.svg) [MediathekView](https://mediathekview.de/) - search in
-  media libraries of various German broadcasters
+- [MediathekView](https://mediathekview.de/) - search in media libraries of
+  various German broadcasters
+- ![New](images/new.svg) [Pixelitor](https://github.com/lbalazscs/Pixelitor) -
+  image editor
 - [Cinecred](https://loadingbyte.com/cinecred/) - create beautiful film credit
   sequences
 - [tinyMediaManager](https://www.tinymediamanager.org/) (**commercial**) - a
@@ -262,19 +291,31 @@ Applications using FlatLaf
   from any webnovel and lightnovel site
 - [lectureStudio](https://www.lecturestudio.org/) - digitize your lectures with
   ease
+- ![New](images/new.svg) [Nortantis](https://jandjheydorn.com/nortantis) -
+  fantasy map generator and editor
 
-### Modelling
+### Modelling / Planning
 
-- ![New](images/new.svg) [Astah](https://astah.net/) (**commercial**) - create
-  UML, ER Diagram, Flowchart, Data Flow Diagram, Requirement Diagram, SysML
-  diagrams and more
+- ![New](images/new.svg) [OpenRocket](https://github.com/openrocket/openrocket) -
+  model-rocketry aerodynamics and trajectory simulation software
+- ![New](images/new.svg)
+  [Warteschlangensimulator](https://github.com/A-Herzog/Warteschlangensimulator) -
+  discrete-event stochastic simulator
+- ![New](images/new.svg) [Gephi](https://github.com/gephi/gephi) - the Open
+  Graph Viz Platform
+- [Astah](https://astah.net/) (**commercial**) - create UML, ER Diagram,
+  Flowchart, Data Flow Diagram, Requirement Diagram, SysML diagrams and more
 - [IGMAS+](https://www.gfz-potsdam.de/igmas) - Interactive Gravity and Magnetic
   Application System
+- ![New](images/new.svg) [StarPlan](https://www.progotec.de/) (**commercial**) -
+  die Stundenplan Software für Bildungseinrichtungen
+- ![New](images/new.svg) [SSPlot](https://github.com/babaissarkar/ssplot) -
+  plotting utility for plotting CSV data
 
 ### Documents
 
-- ![New](images/new.svg) [Big Faceless (BFO) PDF Viewer](https://bfo.com/)
-  (**commercial**) - Swing PDF Viewer
+- [Big Faceless (BFO) PDF Viewer](https://bfo.com/) (**commercial**) - Swing PDF
+  Viewer
 - [PDF Studio](https://www.qoppa.com/pdfstudio/) (**commercial**) - create,
   review and edit PDF documents
 - [XMLmind XML Editor](https://www.xmlmind.com/xmleditor/) (**commercial**)
@@ -292,6 +333,9 @@ Applications using FlatLaf
 
 ### Business / Legal
 
+- ![New](images/new.svg) ![Sponsor](images/sponsor.svg)
+  [Lisheane ERP](https://www.lisheane.ch/) (**commercial**) - backoffice
+  applikation
 - ![Sponsor](images/sponsor.svg)
   [j-lawyer](https://github.com/jlawyerorg/j-lawyer-org) - Kanzleisoftware
 - ![Sponsor](images/sponsor.svg) [Jeyla Studio](https://www.jeylastudio.com/) -
@@ -308,20 +352,20 @@ Applications using FlatLaf
 
 ### Messaging
 
-- ![New](images/new.svg) [Spark](https://github.com/igniterealtime/Spark) -
-  cross-platform IM client optimized for businesses and organizations
-- ![New](images/new.svg) [Chatty](https://github.com/chatty/chatty) - Twitch
-  Chat Client
+- [Spark](https://github.com/igniterealtime/Spark) - cross-platform IM client
+  optimized for businesses and organizations
+- [Chatty](https://github.com/chatty/chatty) - Twitch Chat Client
 
 ### Gaming
 
-- ![New](images/new.svg) ![Sponsor](images/sponsor.svg)
-  [BGBlitz](https://www.bgblitz.com/) (**commercial**) - professional Backgammon
-- ![New](images/new.svg) [MCreator](https://github.com/MCreator/MCreator) - 
-  software used to make Minecraft Java Edition mods, Minecraft Bedrock Edition Add-Ons, 
-  and data packs without programming knowledge
-- ![New](images/new.svg) [MapTool](https://github.com/RPTools/maptool) - virtual
-  Tabletop for playing role-playing games
+- ![Sponsor](images/sponsor.svg) [BGBlitz](https://www.bgblitz.com/)
+  (**commercial**) - professional Backgammon
+- ![New](images/new.svg) [josé](https://peteschaefer.github.io/jose/) - a
+  graphical chess tool
+- ![New](images/new.svg) [MCreator](https://github.com/MCreator/MCreator) - make
+  Minecraft Java Edition mods, Minecraft Bedrock Edition Add-Ons, and data packs
+- [MapTool](https://github.com/RPTools/maptool) - virtual Tabletop for playing
+  role-playing games
 - [MegaMek](https://github.com/MegaMek/megamek),
   [MegaMekLab](https://github.com/MegaMek/megameklab) and
   [MekHQ](https://github.com/MegaMek/mekhq) - a sci-fi tabletop BattleTech
@@ -333,8 +377,7 @@ Applications using FlatLaf
 
 - [MooInfo](https://github.com/rememberber/MooInfo) - visual implementation of
   OSHI, to view information about the system and hardware
-- ![New](images/new.svg)
-  [Linux Task Manager (LTM)](https://github.com/ajee10x/LTM-LinuxTaskManager) -
+- [Linux Task Manager (LTM)](https://github.com/ajee10x/LTM-LinuxTaskManager) -
   GUI for monitoring and managing various aspects of a Linux system
 - [Rest Suite](https://github.com/supanadit/restsuite) - Rest API testing
 - [SpringRemote](https://github.com/HaleyWang/SpringRemote) - remote Linux SSH
@@ -343,6 +386,8 @@ Applications using FlatLaf
   easy
 - [Android Tool](https://github.com/fast-geek/Android-Tool) - makes popular adb
   and fastboot commands easier to use
+- ![New](images/new.svg) [Termora](https://github.com/TermoraDev/termora) -
+  Terminal emulator and SSH client
 
 ### Miscellaneous
 

build.gradle.kts

@@ -14,8 +14,13 @@
  * limitations under the License.
  */
 
+import io.github.gradlenexus.publishplugin.CloseNexusStagingRepository
 import net.ltgt.gradle.errorprone.errorprone
+import org.gradle.kotlin.dsl.withType
 
+
+// initialize version
+group = "com.formdev"
 version = property( if( hasProperty( "release" ) ) "flatlaf.releaseVersion" else "flatlaf.developmentVersion" ) as String
 
 // for PR snapshots change version to 'PR-<pr_number>-SNAPSHOT'
@@ -23,18 +28,16 @@ val pullRequestNumber = findProperty( "github.event.pull_request.number" )
 if( pullRequestNumber != null )
 	version = "PR-${pullRequestNumber}-SNAPSHOT"
 
-
-allprojects {
+// apply version to all subprojects
+subprojects {
 	version = rootProject.version
-
-	repositories {
-		mavenCentral()
-	}
 }
 
-// check required Java version
-if( JavaVersion.current() < JavaVersion.VERSION_1_8 )
-	throw RuntimeException( "Java 8 or later required (running ${System.getProperty( "java.version" )})" )
+
+// initialize toolchain version (default is Java 8)
+val toolchainJavaVersion: String by extra {
+	System.getProperty( "toolchain", "8" )
+}
 
 // log version, Gradle and Java versions
 println()
@@ -42,17 +45,20 @@ println( "----------------------------------------------------------------------
 println( "FlatLaf Version: ${version}" )
 println( "Gradle ${gradle.gradleVersion} at ${gradle.gradleHomeDir}" )
 println( "Java ${System.getProperty( "java.version" )}" )
-val toolchainJavaVersion = System.getProperty( "toolchain" )
-if( !toolchainJavaVersion.isNullOrEmpty() )
-	println( "Java toolchain ${toolchainJavaVersion}" )
+println( "Java toolchain ${toolchainJavaVersion}" )
 println()
 
 
 plugins {
+	alias( libs.plugins.gradle.nexus.publish.plugin )
 	alias( libs.plugins.errorprone ) apply false
 }
 
 allprojects {
+	repositories {
+		mavenCentral()
+	}
+
 	tasks {
 		withType<JavaCompile>().configureEach {
 			sourceCompatibility = "1.8"
@@ -76,6 +82,10 @@ allprojects {
 			}
 		}
 
+		withType<AbstractArchiveTask>().configureEach {
+			isPreserveFileTimestamps = true
+		}
+
 		withType<Javadoc>().configureEach {
 			options {
 				this as StandardJavadocDocletOptions
@@ -88,6 +98,23 @@ allprojects {
 				links( "https://docs.oracle.com/en/java/javase/11/docs/api/" )
 			}
 			isFailOnError = false
+
+			// use Java 25 to generate javadoc
+			val javaToolchains = (project as ExtensionAware).extensions.getByName("javaToolchains") as JavaToolchainService
+			javadocTool.set( javaToolchains.javadocToolFor {
+				languageVersion.set( JavaLanguageVersion.of( 25 ) )
+			} )
+		}
+
+		// mark some publishing related tasks as not compatible with configuration cache
+		withType<Sign>().configureEach {
+			notCompatibleWithConfigurationCache( "not compatible" )
+		}
+		withType<PublishToMavenRepository>().configureEach {
+			notCompatibleWithConfigurationCache( "not compatible" )
+		}
+		withType<CloseNexusStagingRepository>().configureEach {
+			notCompatibleWithConfigurationCache( "not compatible" )
 		}
 	}
 
@@ -139,7 +166,33 @@ allprojects {
 						)
 					}
 				}
+
+				// Error Prone requires at lease Java 11
+				val java = (project as ExtensionAware).extensions.getByName("java") as JavaPluginExtension
+				val javaToolchains = (project as ExtensionAware).extensions.getByName("javaToolchains") as JavaToolchainService
+				if( java.toolchain.languageVersion.get().asInt() < 11 ) {
+					javaCompiler.set( javaToolchains.compilerFor {
+						languageVersion.set( JavaLanguageVersion.of( 11 ) )
+					} )
+				}
 			}
 		}
 	}
 }
+
+nexusPublishing {
+	repositories {
+		sonatype {
+			// see https://central.sonatype.org/publish/publish-portal-ossrh-staging-api/
+			nexusUrl = uri( "https://ossrh-staging-api.central.sonatype.com/service/local/" )
+			snapshotRepositoryUrl = uri( "https://central.sonatype.com/repository/maven-snapshots/" )
+
+			// get from gradle.properties
+			val sonatypeUsername: String? by project
+			val sonatypePassword: String? by project
+
+			username = System.getenv( "SONATYPE_USERNAME" ) ?: sonatypeUsername
+			password = System.getenv( "SONATYPE_PASSWORD" ) ?: sonatypePassword
+		}
+	}
+}

buildSrc/src/main/kotlin/flatlaf-cpp-library.gradle.kts

@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+import org.gradle.kotlin.dsl.support.serviceOf
+
 plugins {
 	`cpp-library`
 }
@@ -37,9 +39,14 @@ tasks {
 		doFirst {
 			println( "Used Tool Chain:" )
 			println( "  - ${toolChain.get()}" )
-			println( "Available Tool Chains:" )
-			toolChains.forEach {
-				println( "  - $it" )
+		}
+
+		if( !project.gradle.serviceOf<BuildFeatures>().configurationCache.active.get() ) {
+			doFirst {
+				println( "Available Tool Chains:" )
+				toolChains.forEach {
+					println( "  - $it" )
+				}
 			}
 		}
 	}

buildSrc/src/main/kotlin/flatlaf-java9.gradle.kts

@@ -18,7 +18,14 @@ plugins {
 	java
 }
 
-if( JavaVersion.current() >= JavaVersion.VERSION_1_9 ) {
+// for Eclipse IDE project import, exclude if:
+// - plugin "eclipse" is applied; e.g. if running in Eclipse IDE with buildship plugin
+// - no taskNames specified at command line; e.g. if buildship synchronizes projects
+val exclude =
+	rootProject.plugins.hasPlugin( "eclipse" ) &&
+	gradle.startParameter.taskNames.isEmpty()
+
+if( !exclude ) {
 	sourceSets {
 		create( "java9" ) {
 			java {
@@ -35,6 +42,13 @@ if( JavaVersion.current() >= JavaVersion.VERSION_1_9 ) {
 		named<JavaCompile>( "compileJava9Java" ) {
 			sourceCompatibility = "9"
 			targetCompatibility = "9"
+
+			// if global toolchain is Java 8, then use Java 11 to build
+			if( java.toolchain.languageVersion.get().asInt() < 9 ) {
+				javaCompiler.set( javaToolchains.compilerFor {
+					languageVersion.set( JavaLanguageVersion.of( 11 ) )
+				} )
+			}
 		}
 
 		jar {

buildSrc/src/main/kotlin/flatlaf-module-info.gradle.kts

@@ -29,7 +29,14 @@ plugins {
 	java
 }
 
-if( JavaVersion.current() >= JavaVersion.VERSION_1_9 ) {
+// for Eclipse IDE project import, exclude if:
+// - plugin "eclipse" is applied; e.g. if running in Eclipse IDE with buildship plugin
+// - no taskNames specified at command line; e.g. if buildship synchronizes projects
+val exclude =
+	rootProject.plugins.hasPlugin( "eclipse" ) &&
+	gradle.startParameter.taskNames.isEmpty()
+
+if( !exclude ) {
 	sourceSets {
 		create( "module-info" ) {
 			java {
@@ -38,10 +45,11 @@ if( JavaVersion.current() >= JavaVersion.VERSION_1_9 ) {
 				setSrcDirs( listOf( "src/main/module-info", "src/main/java", "src/main/java9" ) )
 
 				// exclude Java 8 source file if an equally named Java 9+ source file exists
+				val projectDir = projectDir // necessary for configuration cache
 				exclude {
 					if( it.isDirectory )
 						return@exclude false
-					val java9file = file( "${projectDir}/src/main/java9/${it.path}" )
+					val java9file = File( "${projectDir}/src/main/java9/${it.path}" )
 					java9file.exists() && java9file != it.file
 				}
 			}
@@ -58,6 +66,13 @@ if( JavaVersion.current() >= JavaVersion.VERSION_1_9 ) {
 			options.compilerArgs.add( "--module-path" )
 			options.compilerArgs.add( configurations.runtimeClasspath.get().asPath
 				+ File.pathSeparator + configurations.compileClasspath.get().asPath )
+
+			// if global toolchain is Java 8, then use Java 11 to build
+			if( java.toolchain.languageVersion.get().asInt() < 9 ) {
+				javaCompiler.set( javaToolchains.compilerFor {
+					languageVersion.set( JavaLanguageVersion.of( 11 ) )
+				} )
+			}
 		}
 
 		jar {

buildSrc/src/main/kotlin/flatlaf-publish.gradle.kts

@@ -15,7 +15,7 @@
  */
 
 
-open class NativeArtifact( val fileName: String, val classifier: String, val type: String ) {}
+open class NativeArtifact( val fileName: String, val classifier: String, val extension: String ) {}
 
 open class PublishExtension {
 	var artifactId: String? = null
@@ -77,33 +77,14 @@ publishing {
 
 			afterEvaluate {
 				extension.nativeArtifacts?.forEach {
-					artifact( artifacts.add( "archives", file( it.fileName ) ) {
+					artifact( file( it.fileName ) ) {
 						classifier = it.classifier
-						type = it.type
-					} )
+						extension = it.extension
+					}
 				}
 			}
 		}
 	}
-
-	repositories {
-		maven {
-			name = "OSSRH"
-
-			val releasesRepoUrl = "https://oss.sonatype.org/service/local/staging/deploy/maven2/"
-			val snapshotsRepoUrl = "https://oss.sonatype.org/content/repositories/snapshots/"
-			url = uri( if( rootProject.hasProperty( "release" ) ) releasesRepoUrl else snapshotsRepoUrl )
-
-			credentials {
-				// get from gradle.properties
-				val ossrhUsername: String? by project
-				val ossrhPassword: String? by project
-
-				username = System.getenv( "OSSRH_USERNAME" ) ?: ossrhUsername
-				password = System.getenv( "OSSRH_PASSWORD" ) ?: ossrhPassword
-			}
-		}
-	}
 }
 
 signing {
@@ -123,10 +104,22 @@ tasks.withType<Sign>().configureEach {
 	onlyIf { rootProject.hasProperty( "release" ) }
 }
 
-// check whether parallel build is enabled
-tasks.withType<AbstractPublishToMaven>().configureEach {
-	doFirst {
-		if( System.getProperty( "org.gradle.parallel" ) == "true" )
-			throw RuntimeException( "Publishing does not work correctly with enabled parallel build. Disable parallel build with VM option '-Dorg.gradle.parallel=false'." )
+tasks {
+	// check whether parallel build is enabled
+	withType<AbstractPublishToMaven>().configureEach {
+		doFirst {
+			if( System.getProperty( "org.gradle.parallel" ) == "true" )
+				throw RuntimeException( "Publishing does not work correctly with enabled parallel build. Disable parallel build with VM option '-Dorg.gradle.parallel=false'." )
+		}
+	}
+
+	register( "publishToSonatypeAndCloseStagingRepo" ) {
+		group = "publishing"
+		description = "Publish to Sonatype Maven Central and close staging repository"
+
+		dependsOn(
+			"publishToSonatype",
+			":closeSonatypeStagingRepository"
+		)
 	}
 }

buildSrc/src/main/kotlin/flatlaf-toolchain.gradle.kts

@@ -18,9 +18,8 @@ plugins {
 	java
 }
 
-val toolchainJavaVersion = System.getProperty( "toolchain" )
-if( !toolchainJavaVersion.isNullOrEmpty() ) {
-	java.toolchain {
-		languageVersion = JavaLanguageVersion.of( toolchainJavaVersion )
-	}
+val toolchainJavaVersion: String by rootProject.extra
+
+java.toolchain {
+	languageVersion = JavaLanguageVersion.of( toolchainJavaVersion )
 }

flatlaf-core/.settings/org.eclipse.jdt.core.prefs

@@ -1,4 +1,7 @@
 eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.source=1.8
 org.eclipse.jdt.core.formatter.align_assignment_statements_on_columns=false
 org.eclipse.jdt.core.formatter.align_fields_grouping_blank_lines=2147483647
 org.eclipse.jdt.core.formatter.align_type_members_on_columns=false

flatlaf-core/build.gradle.kts

@@ -90,7 +90,7 @@ tasks {
 		useJUnitPlatform()
 		testLogging.exceptionFormat = org.gradle.api.tasks.testing.logging.TestExceptionFormat.FULL
 
-		if( JavaVersion.current() >= JavaVersion.VERSION_1_9 )
+		if( java.toolchain.languageVersion.get().asInt() >= 9 )
 			jvmArgs( listOf( "--add-opens", "java.desktop/javax.swing.plaf.basic=ALL-UNNAMED" ) )
 	}
 
@@ -98,21 +98,31 @@ tasks {
 		group = "verification"
 		dependsOn( "jar" )
 
+		// necessary for configuration cache
+		val classpath = sigtest.asPath
+		val signatureFile = "${project.name}-sigtest.txt"
+		val jarPath = jar.get().outputs.files.asPath
+		val version = version
+
 		doLast {
 			ant.withGroovyBuilder {
 				"taskdef"(
 					"name" to "sigtest",
 					"classname" to "org.netbeans.apitest.Sigtest",
-					"classpath" to sigtest.asPath )
+					"classpath" to classpath )
 
 				"sigtest"(
 					"action" to "generate",
-					"fileName" to "${project.name}-sigtest.txt",
-					"classpath" to jar.get().outputs.files.asPath,
+					"fileName" to signatureFile,
+					"classpath" to jarPath,
 					"packages" to "com.formdev.flatlaf,com.formdev.flatlaf.themes,com.formdev.flatlaf.util",
 					"version" to version,
 					"release" to "1.8", // Java version
 					"failonerror" to "true" )
+
+				"fixcrlf"(
+					"file" to signatureFile,
+					"eol" to "lf" )
 			}
 		}
 	}
@@ -121,17 +131,23 @@ tasks {
 		group = "verification"
 		dependsOn( "jar" )
 
+		// necessary for configuration cache
+		val classpath = sigtest.asPath
+		val signatureFile = "${project.name}-sigtest.txt"
+		val jarPath = jar.get().outputs.files.asPath
+		val version = version
+
 		doLast {
 			ant.withGroovyBuilder {
 				"taskdef"(
 					"name" to "sigtest",
 					"classname" to "org.netbeans.apitest.Sigtest",
-					"classpath" to sigtest.asPath )
+					"classpath" to classpath )
 
 				"sigtest"(
 					"action" to "check",
-					"fileName" to "${project.name}-sigtest.txt",
-					"classpath" to jar.get().outputs.files.asPath,
+					"fileName" to signatureFile,
+					"classpath" to jarPath,
 					"packages" to "com.formdev.flatlaf,com.formdev.flatlaf.util",
 					"version" to version,
 					"release" to "1.8", // Java version
@@ -156,5 +172,6 @@ flatlafPublish {
 		NativeArtifact( "${natives}/libflatlaf-macos-arm64.dylib",  "macos-arm64",    "dylib" ),
 		NativeArtifact( "${natives}/libflatlaf-macos-x86_64.dylib", "macos-x86_64",   "dylib" ),
 		NativeArtifact( "${natives}/libflatlaf-linux-x86_64.so",    "linux-x86_64",   "so" ),
+		NativeArtifact( "${natives}/libflatlaf-linux-arm64.so",     "linux-arm64",    "so" ),
 	)
 }

flatlaf-core/flatlaf-core-sigtest.txt

@@ -1,5 +1,5 @@
 #Signature file v4.1
-#Version 3.5.2
+#Version 3.7
 
 CLSS public abstract interface com.formdev.flatlaf.FlatClientProperties
 fld public final static java.lang.String BUTTON_TYPE = "JButton.buttonType"
@@ -24,6 +24,7 @@ fld public final static java.lang.String MINIMUM_HEIGHT = "JComponent.minimumHei
 fld public final static java.lang.String MINIMUM_WIDTH = "JComponent.minimumWidth"
 fld public final static java.lang.String OUTLINE = "JComponent.outline"
 fld public final static java.lang.String OUTLINE_ERROR = "error"
+fld public final static java.lang.String OUTLINE_SUCCESS = "success"
 fld public final static java.lang.String OUTLINE_WARNING = "warning"
 fld public final static java.lang.String PLACEHOLDER_TEXT = "JTextField.placeholderText"
 fld public final static java.lang.String POPUP_BORDER_CORNER_RADIUS = "Popup.borderCornerRadius"
@@ -40,6 +41,7 @@ fld public final static java.lang.String SELECT_ALL_ON_FOCUS_POLICY = "JTextFiel
 fld public final static java.lang.String SELECT_ALL_ON_FOCUS_POLICY_ALWAYS = "always"
 fld public final static java.lang.String SELECT_ALL_ON_FOCUS_POLICY_NEVER = "never"
 fld public final static java.lang.String SELECT_ALL_ON_FOCUS_POLICY_ONCE = "once"
+fld public final static java.lang.String SELECT_ALL_ON_MOUSE_CLICK = "JTextField.selectAllOnMouseClick"
 fld public final static java.lang.String SPLIT_PANE_EXPANDABLE_SIDE = "JSplitPane.expandableSide"
 fld public final static java.lang.String SPLIT_PANE_EXPANDABLE_SIDE_LEFT = "left"
 fld public final static java.lang.String SPLIT_PANE_EXPANDABLE_SIDE_RIGHT = "right"
@@ -85,6 +87,7 @@ fld public final static java.lang.String TABBED_PANE_TAB_TYPE_UNDERLINED = "unde
 fld public final static java.lang.String TABBED_PANE_TAB_WIDTH_MODE = "JTabbedPane.tabWidthMode"
 fld public final static java.lang.String TABBED_PANE_TAB_WIDTH_MODE_COMPACT = "compact"
 fld public final static java.lang.String TABBED_PANE_TAB_WIDTH_MODE_EQUAL = "equal"
+fld public final static java.lang.String TABBED_PANE_TAB_WIDTH_MODE_ICON_ONLY = "iconOnly"
 fld public final static java.lang.String TABBED_PANE_TAB_WIDTH_MODE_PREFERRED = "preferred"
 fld public final static java.lang.String TABBED_PANE_TRAILING_COMPONENT = "JTabbedPane.trailingComponent"
 fld public final static java.lang.String TAB_BUTTON_SELECTED_BACKGROUND = "JToggleButton.tab.selectedBackground"
@@ -107,6 +110,7 @@ fld public final static java.lang.String TITLE_BAR_SHOW_ICONIFFY = "JRootPane.ti
 fld public final static java.lang.String TITLE_BAR_SHOW_MAXIMIZE = "JRootPane.titleBarShowMaximize"
 fld public final static java.lang.String TITLE_BAR_SHOW_TITLE = "JRootPane.titleBarShowTitle"
 fld public final static java.lang.String TREE_PAINT_SELECTION = "JTree.paintSelection"
+fld public final static java.lang.String TREE_WIDE_CELL_RENDERER = "JTree.wideCellRenderer"
 fld public final static java.lang.String TREE_WIDE_SELECTION = "JTree.wideSelection"
 fld public final static java.lang.String USE_WINDOW_DECORATIONS = "JRootPane.useWindowDecorations"
 fld public final static java.lang.String WINDOW_STYLE = "Window.style"
@@ -220,8 +224,11 @@ meth public static java.lang.String getPreferredFontFamily()
 meth public static java.lang.String getPreferredLightFontFamily()
 meth public static java.lang.String getPreferredMonospacedFontFamily()
 meth public static java.lang.String getPreferredSemiboldFontFamily()
+meth public static java.lang.String getUIKeyLightOrDarkPrefix(boolean)
 meth public static java.util.Map<java.lang.String,java.lang.Class<?>> getStyleableInfos(javax.swing.JComponent)
 meth public static java.util.Map<java.lang.String,java.lang.String> getGlobalExtraDefaults()
+meth public static java.util.Set<java.lang.String> getUIKeyPlatformPrefixes()
+meth public static java.util.Set<java.lang.String> getUIKeySpecialPrefixes()
 meth public static java.util.function.Function<java.lang.String,java.awt.Color> getSystemColorGetter()
 meth public static javax.swing.UIDefaults$ActiveValue createActiveFontValue(float)
 meth public static void disableWindowsD3Donscreen()
@@ -255,7 +262,7 @@ meth public void setExtraDefaults(java.util.Map<java.lang.String,java.lang.Strin
 meth public void uninitialize()
 meth public void unregisterUIDefaultsGetter(java.util.function.Function<java.lang.Object,java.lang.Object>)
 supr javax.swing.plaf.basic.BasicLookAndFeel
-hfds DESKTOPFONTHINTS,aquaLoaded,customDefaultsSources,desktopPropertyListener,desktopPropertyName,desktopPropertyName2,extraDefaults,globalExtraDefaults,mnemonicHandler,oldPopupFactory,postInitialization,preferredFontFamily,preferredLightFontFamily,preferredMonospacedFontFamily,preferredSemiboldFontFamily,subMenuUsabilityHelperInstalled,systemColorGetter,uiDefaultsGetters,updateUIPending
+hfds DESKTOPFONTHINTS,aquaLoaded,customDefaultsSources,desktopPropertyListener,desktopPropertyName,desktopPropertyName2,extraDefaults,globalExtraDefaults,linuxPopupMenuCanceler,mnemonicHandler,oldPopupFactory,postInitialization,preferredFontFamily,preferredLightFontFamily,preferredMonospacedFontFamily,preferredSemiboldFontFamily,subMenuUsabilityHelperInstalled,systemColorGetter,uiDefaultsGetters,uiKeyPlatformPrefixes,uiKeySpecialPrefixes,updateUIPending
 hcls ActiveFont,FlatUIDefaults,ImageIconUIResource
 
 CLSS public abstract interface static com.formdev.flatlaf.FlatLaf$DisabledIconProvider
@@ -291,6 +298,7 @@ CLSS public abstract interface com.formdev.flatlaf.FlatSystemProperties
 fld public final static java.lang.String ANIMATION = "flatlaf.animation"
 fld public final static java.lang.String MENUBAR_EMBEDDED = "flatlaf.menuBarEmbedded"
 fld public final static java.lang.String NATIVE_LIBRARY_PATH = "flatlaf.nativeLibraryPath"
+fld public final static java.lang.String REUSE_VISIBLE_POPUP_WINDOW = "flatlaf.reuseVisiblePopupWindow"
 fld public final static java.lang.String UI_SCALE = "flatlaf.uiScale"
 fld public final static java.lang.String UI_SCALE_ALLOW_SCALE_DOWN = "flatlaf.uiScale.allowScaleDown"
 fld public final static java.lang.String UI_SCALE_ENABLED = "flatlaf.uiScale.enabled"
@@ -300,6 +308,7 @@ fld public final static java.lang.String USE_JETBRAINS_CUSTOM_DECORATIONS = "fla
 fld public final static java.lang.String USE_NATIVE_LIBRARY = "flatlaf.useNativeLibrary"
 fld public final static java.lang.String USE_ROUNDED_POPUP_BORDER = "flatlaf.useRoundedPopupBorder"
 fld public final static java.lang.String USE_SUB_MENU_SAFE_TRIANGLE = "flatlaf.useSubMenuSafeTriangle"
+fld public final static java.lang.String USE_SYSTEM_FILE_CHOOSER = "flatlaf.useSystemFileChooser"
 fld public final static java.lang.String USE_TEXT_Y_CORRECTION = "flatlaf.useTextYCorrection"
 fld public final static java.lang.String USE_UBUNTU_FONT = "flatlaf.useUbuntuFont"
 fld public final static java.lang.String USE_WINDOW_DECORATIONS = "flatlaf.useWindowDecorations"
@@ -318,7 +327,7 @@ meth public static boolean setup(java.io.InputStream)
 meth public static com.formdev.flatlaf.FlatLaf createLaf(com.formdev.flatlaf.IntelliJTheme)
 meth public static com.formdev.flatlaf.FlatLaf createLaf(java.io.InputStream) throws java.io.IOException
 supr java.lang.Object
-hfds checkboxDuplicateColors,checkboxKeyMapping,colors,icons,isMaterialUILite,namedColors,ui,uiKeyCopying,uiKeyDoNotOverride,uiKeyExcludes,uiKeyInverseMapping,uiKeyMapping
+hfds checkboxDuplicateColors,checkboxKeyMapping,jsonColors,jsonIcons,jsonUI,namedColors,uiKeyCopying,uiKeyDoNotOverride,uiKeyExcludesContains,uiKeyExcludesStartsWith,uiKeyInverseMapping,uiKeyMapping
 
 CLSS public static com.formdev.flatlaf.IntelliJTheme$ThemeLaf
  outer com.formdev.flatlaf.IntelliJTheme
@@ -413,6 +422,7 @@ innr public static Fade
 innr public static HSLChange
 innr public static HSLIncreaseDecrease
 innr public static Mix
+innr public static Mix2
 meth public !varargs static java.awt.Color applyFunctions(java.awt.Color,com.formdev.flatlaf.util.ColorFunctions$ColorFunction[])
 meth public static float clamp(float)
 meth public static float luma(java.awt.Color)
@@ -474,6 +484,16 @@ meth public java.lang.String toString()
 meth public void apply(float[])
 supr java.lang.Object
 
+CLSS public static com.formdev.flatlaf.util.ColorFunctions$Mix2
+ outer com.formdev.flatlaf.util.ColorFunctions
+cons public init(java.awt.Color,float)
+fld public final float weight
+fld public final java.awt.Color color1
+intf com.formdev.flatlaf.util.ColorFunctions$ColorFunction
+meth public java.lang.String toString()
+meth public void apply(float[])
+supr java.lang.Object
+
 CLSS public com.formdev.flatlaf.util.CubicBezierEasing
 cons public init(float,float,float,float)
 fld public final static com.formdev.flatlaf.util.CubicBezierEasing EASE
@@ -752,9 +772,116 @@ cons public init()
 meth public static <%0 extends java.awt.Component> {%%0} getComponentByName(java.awt.Container,java.lang.String)
 supr java.lang.Object
 
+CLSS public com.formdev.flatlaf.util.SystemFileChooser
+cons public init()
+cons public init(java.io.File)
+cons public init(java.lang.String)
+fld public final static int APPROVE_OPTION = 0
+fld public final static int CANCEL_OPTION = 1
+fld public final static int DIRECTORIES_ONLY = 1
+fld public final static int FILES_ONLY = 0
+fld public final static int OPEN_DIALOG = 0
+fld public final static int SAVE_DIALOG = 1
+fld public final static java.lang.String LINUX_OPTIONS_CLEAR = "linux.optionsClear"
+fld public final static java.lang.String LINUX_OPTIONS_SET = "linux.optionsSet"
+fld public final static java.lang.String MAC_FILTER_FIELD_LABEL = "mac.filterFieldLabel"
+fld public final static java.lang.String MAC_MESSAGE = "mac.message"
+fld public final static java.lang.String MAC_NAME_FIELD_LABEL = "mac.nameFieldLabel"
+fld public final static java.lang.String MAC_OPTIONS_CLEAR = "mac.optionsClear"
+fld public final static java.lang.String MAC_OPTIONS_SET = "mac.optionsSet"
+fld public final static java.lang.String MAC_TREATS_FILE_PACKAGES_AS_DIRECTORIES = "mac.treatsFilePackagesAsDirectories"
+fld public final static java.lang.String WINDOWS_DEFAULT_EXTENSION = "windows.defaultExtension"
+fld public final static java.lang.String WINDOWS_DEFAULT_FOLDER = "windows.defaultFolder"
+fld public final static java.lang.String WINDOWS_FILE_NAME_LABEL = "windows.fileNameLabel"
+fld public final static java.lang.String WINDOWS_OPTIONS_CLEAR = "windows.optionsClear"
+fld public final static java.lang.String WINDOWS_OPTIONS_SET = "windows.optionsSet"
+innr public abstract interface static ApproveCallback
+innr public abstract interface static StateStore
+innr public abstract static ApproveContext
+innr public abstract static FileFilter
+innr public final static FileNameExtensionFilter
+meth public <%0 extends java.lang.Object> {%%0} getPlatformProperty(java.lang.String)
+meth public boolean isAcceptAllFileFilterUsed()
+meth public boolean isDirectorySelectionEnabled()
+meth public boolean isFileHidingEnabled()
+meth public boolean isFileSelectionEnabled()
+meth public boolean isMultiSelectionEnabled()
+meth public boolean removeChoosableFileFilter(com.formdev.flatlaf.util.SystemFileChooser$FileFilter)
+meth public com.formdev.flatlaf.util.SystemFileChooser$ApproveCallback getApproveCallback()
+meth public com.formdev.flatlaf.util.SystemFileChooser$FileFilter getAcceptAllFileFilter()
+meth public com.formdev.flatlaf.util.SystemFileChooser$FileFilter getFileFilter()
+meth public com.formdev.flatlaf.util.SystemFileChooser$FileFilter[] getChoosableFileFilters()
+meth public int getApproveButtonMnemonic()
+meth public int getDialogType()
+meth public int getFileSelectionMode()
+meth public int showDialog(java.awt.Component,java.lang.String)
+meth public int showOpenDialog(java.awt.Component)
+meth public int showSaveDialog(java.awt.Component)
+meth public java.io.File getCurrentDirectory()
+meth public java.io.File getSelectedFile()
+meth public java.io.File[] getSelectedFiles()
+meth public java.lang.String getApproveButtonText()
+meth public java.lang.String getDialogTitle()
+meth public java.lang.String getStateStoreID()
+meth public static com.formdev.flatlaf.util.SystemFileChooser$StateStore getStateStore()
+meth public static void setStateStore(com.formdev.flatlaf.util.SystemFileChooser$StateStore)
+meth public void addChoosableFileFilter(com.formdev.flatlaf.util.SystemFileChooser$FileFilter)
+meth public void putPlatformProperty(java.lang.String,java.lang.Object)
+meth public void resetChoosableFileFilters()
+meth public void setAcceptAllFileFilterUsed(boolean)
+meth public void setApproveButtonMnemonic(char)
+meth public void setApproveButtonMnemonic(int)
+meth public void setApproveButtonText(java.lang.String)
+meth public void setApproveCallback(com.formdev.flatlaf.util.SystemFileChooser$ApproveCallback)
+meth public void setCurrentDirectory(java.io.File)
+meth public void setDialogTitle(java.lang.String)
+meth public void setDialogType(int)
+meth public void setFileFilter(com.formdev.flatlaf.util.SystemFileChooser$FileFilter)
+meth public void setFileHidingEnabled(boolean)
+meth public void setFileSelectionMode(int)
+meth public void setMultiSelectionEnabled(boolean)
+meth public void setSelectedFile(java.io.File)
+meth public void setSelectedFiles(java.io.File[])
+meth public void setStateStoreID(java.lang.String)
+supr java.lang.Object
+hfds acceptAllFileFilter,approveButtonMnemonic,approveButtonText,approveCallback,approveResult,currentDirectory,dialogTitle,dialogType,fileFilter,fileSelectionMode,filters,inMemoryStateStore,keepAcceptAllAtEnd,multiSelection,platformProperties,selectedFile,selectedFiles,stateStore,stateStoreID,useAcceptAllFileFilter,useFileHiding
+hcls AcceptAllFileFilter,FileChooserProvider,LinuxFileChooserProvider,MacFileChooserProvider,SwingFileChooserProvider,SystemFileChooserProvider,WindowsFileChooserProvider
+
+CLSS public abstract interface static com.formdev.flatlaf.util.SystemFileChooser$ApproveCallback
+ outer com.formdev.flatlaf.util.SystemFileChooser
+meth public abstract int approve(java.io.File[],com.formdev.flatlaf.util.SystemFileChooser$ApproveContext)
+
+CLSS public abstract static com.formdev.flatlaf.util.SystemFileChooser$ApproveContext
+ outer com.formdev.flatlaf.util.SystemFileChooser
+cons public init()
+meth public abstract !varargs int showMessageDialog(int,java.lang.String,java.lang.String,int,java.lang.String[])
+supr java.lang.Object
+
+CLSS public abstract static com.formdev.flatlaf.util.SystemFileChooser$FileFilter
+ outer com.formdev.flatlaf.util.SystemFileChooser
+cons public init()
+meth public abstract java.lang.String getDescription()
+supr java.lang.Object
+
+CLSS public final static com.formdev.flatlaf.util.SystemFileChooser$FileNameExtensionFilter
+ outer com.formdev.flatlaf.util.SystemFileChooser
+cons public !varargs init(java.lang.String,java.lang.String[])
+meth public java.lang.String getDescription()
+meth public java.lang.String toString()
+meth public java.lang.String[] getExtensions()
+supr com.formdev.flatlaf.util.SystemFileChooser$FileFilter
+hfds description,extensions
+
+CLSS public abstract interface static com.formdev.flatlaf.util.SystemFileChooser$StateStore
+ outer com.formdev.flatlaf.util.SystemFileChooser
+fld public final static java.lang.String KEY_CURRENT_DIRECTORY = "currentDirectory"
+meth public abstract java.lang.String get(java.lang.String,java.lang.String)
+meth public abstract void put(java.lang.String,java.lang.String)
+
 CLSS public com.formdev.flatlaf.util.SystemInfo
 cons public init()
 fld public final static boolean isAARCH64
+fld public final static boolean isGNOME
 fld public final static boolean isJava_11_orLater
 fld public final static boolean isJava_12_orLater
 fld public final static boolean isJava_15_orLater
@@ -771,6 +898,7 @@ fld public final static boolean isMacOS_10_11_ElCapitan_orLater
 fld public final static boolean isMacOS_10_14_Mojave_orLater
 fld public final static boolean isMacOS_10_15_Catalina_orLater
 fld public final static boolean isProjector
+fld public final static boolean isUnknownOS
 fld public final static boolean isWebswing
 fld public final static boolean isWinPE
 fld public final static boolean isWindows
@@ -786,13 +914,21 @@ supr java.lang.Object
 
 CLSS public com.formdev.flatlaf.util.UIScale
 cons public init()
+fld public final static java.lang.String PROP_USER_SCALE_FACTOR = "userScaleFactor"
+fld public final static java.lang.String PROP_ZOOM_FACTOR = "zoomFactor"
 meth public static boolean isSystemScalingEnabled()
+meth public static boolean setZoomFactor(float)
+meth public static boolean zoomIn()
+meth public static boolean zoomOut()
+meth public static boolean zoomReset()
 meth public static double getSystemScaleFactor(java.awt.Graphics2D)
 meth public static double getSystemScaleFactor(java.awt.GraphicsConfiguration)
 meth public static float computeFontScaleFactor(java.awt.Font)
 meth public static float getUserScaleFactor()
+meth public static float getZoomFactor()
 meth public static float scale(float)
 meth public static float unscale(float)
+meth public static float[] getSupportedZoomFactors()
 meth public static int scale(int)
 meth public static int scale2(int)
 meth public static int unscale(int)
@@ -802,8 +938,9 @@ meth public static javax.swing.plaf.FontUIResource applyCustomScaleFactor(javax.
 meth public static void addPropertyChangeListener(java.beans.PropertyChangeListener)
 meth public static void removePropertyChangeListener(java.beans.PropertyChangeListener)
 meth public static void scaleGraphics(java.awt.Graphics2D)
+meth public static void setSupportedZoomFactors(float[])
 supr java.lang.Object
-hfds DEBUG,changeSupport,initialized,jreHiDPI,scaleFactor
+hfds DEBUG,changeSupport,ignoreFontChange,inUnitTests,initialized,jreHiDPI,listenerInitialized,scaleFactor,supportedZoomFactors,unzoomedScaleFactor,zoomFactor
 
 CLSS public java.awt.Color
 cons public init(float,float,float)

flatlaf-core/src/main/java/com/formdev/flatlaf/FlatClientProperties.java

@@ -21,6 +21,8 @@ import java.awt.IllegalComponentStateException;
 import java.awt.Window;
 import java.util.Objects;
 import javax.swing.JComponent;
+import javax.swing.JFormattedTextField;
+import javax.swing.JSpinner;
 import javax.swing.SwingConstants;
 
 /**
@@ -220,6 +222,7 @@ public interface FlatClientProperties
 	 * <strong>Allowed Values</strong>
 	 *     {@link #OUTLINE_ERROR},
 	 *     {@link #OUTLINE_WARNING},
+	 *     {@link #OUTLINE_SUCCESS},
 	 *     any color (type {@link java.awt.Color}) or
 	 *     an array of two colors (type {@link java.awt.Color}[2]) where the first color
 	 *     is for focused state and the second for unfocused state
@@ -240,6 +243,14 @@ public interface FlatClientProperties
 	 */
 	String OUTLINE_WARNING = "warning";
 
+	/**
+	 * Paint the component border in another color (usually greenish) to indicate a success.
+	 *
+	 * @see #OUTLINE
+	 * @since 3.6
+	 */
+	String OUTLINE_SUCCESS = "success";
+
 	/**
 	 * Specifies a callback that is invoked to check whether a component is permanent focus owner.
 	 * Used to paint focus indicators.
@@ -1075,8 +1086,9 @@ public interface FlatClientProperties
 	 * <strong>Value type</strong> {@link java.lang.String}<br>
 	 * <strong>Allowed Values</strong>
 	 *     {@link #TABBED_PANE_TAB_WIDTH_MODE_PREFERRED} (default),
-	 *     {@link #TABBED_PANE_TAB_WIDTH_MODE_EQUAL} or
-	 *     {@link #TABBED_PANE_TAB_WIDTH_MODE_COMPACT}
+	 *     {@link #TABBED_PANE_TAB_WIDTH_MODE_EQUAL},
+	 *     {@link #TABBED_PANE_TAB_WIDTH_MODE_COMPACT} or
+	 *     {@link #TABBED_PANE_TAB_WIDTH_MODE_ICON_ONLY}
 	 */
 	String TABBED_PANE_TAB_WIDTH_MODE = "JTabbedPane.tabWidthMode";
 
@@ -1102,6 +1114,14 @@ public interface FlatClientProperties
 	 */
 	String TABBED_PANE_TAB_WIDTH_MODE_COMPACT = "compact";
 
+	/**
+	 * All tabs are smaller because they show only the tab icon, but no tab title.
+	 *
+	 * @see #TABBED_PANE_TAB_WIDTH_MODE
+	 * @since 3.7
+	 */
+	String TABBED_PANE_TAB_WIDTH_MODE_ICON_ONLY = "iconOnly";
+
 	/**
 	 * Specifies the tab icon placement (relative to tab title).
 	 * <p>
@@ -1200,12 +1220,15 @@ public interface FlatClientProperties
 	/**
 	 * Specifies whether all text is selected when the text component gains focus.
 	 * <p>
-	 * <strong>Component</strong> {@link javax.swing.JTextField} (and subclasses)<br>
+	 * <strong>Components</strong> {@link javax.swing.text.JTextComponent} (and subclasses),
+	 * {@link javax.swing.JComboBox} (since 3.6) and {@link javax.swing.JSpinner} (since 3.6)<br>
 	 * <strong>Value type</strong> {@link java.lang.String}<br>
 	 * <strong>Allowed Values</strong>
 	 *     {@link #SELECT_ALL_ON_FOCUS_POLICY_NEVER},
 	 *     {@link #SELECT_ALL_ON_FOCUS_POLICY_ONCE} (default) or
 	 *     {@link #SELECT_ALL_ON_FOCUS_POLICY_ALWAYS}
+	 *
+	 * @see #SELECT_ALL_ON_MOUSE_CLICK
 	 */
 	String SELECT_ALL_ON_FOCUS_POLICY = "JTextField.selectAllOnFocusPolicy";
 
@@ -1220,6 +1243,12 @@ public interface FlatClientProperties
 	 * Select all text when the text component gains focus for the first time
 	 * and selection was not modified (is at end of text).
 	 * This is the default.
+	 * <p>
+	 * <b>Limitations:</b>
+	 * For {@link JFormattedTextField} and {@link JSpinner} this behaves
+	 * as {@link #SELECT_ALL_ON_FOCUS_POLICY_ALWAYS}.
+     * This is because of special behavior of {@link JFormattedTextField}
+     * that did not allow implementation of {@code "once"}.
 	 *
 	 * @see #SELECT_ALL_ON_FOCUS_POLICY
 	 */
@@ -1232,6 +1261,19 @@ public interface FlatClientProperties
 	 */
 	String SELECT_ALL_ON_FOCUS_POLICY_ALWAYS = "always";
 
+	/**
+	 * Specifies whether all text is selected when when clicking with the mouse
+	 * into the text field (and if "select all on focus" policy is enabled).
+	 * <p>
+	 * <strong>Components</strong> {@link javax.swing.text.JTextComponent} (and subclasses),
+	 * {@link javax.swing.JComboBox} and {@link javax.swing.JSpinner}<br>
+	 * <strong>Value type</strong> {@link java.lang.Boolean}
+	 *
+	 * @see #SELECT_ALL_ON_FOCUS_POLICY
+	 * @since 3.6
+	 */
+	String SELECT_ALL_ON_MOUSE_CLICK = "JTextField.selectAllOnMouseClick";
+
 	/**
 	 * Placeholder text that is only painted if the text field is empty.
 	 * <p>
@@ -1410,13 +1452,23 @@ public interface FlatClientProperties
 	//---- JTree --------------------------------------------------------------
 
 	/**
-	 * Override if a tree shows a wide selection. Default is {@code true}.
+	 * Specifies whether tree shows a wide selection. Default is {@code true}.
 	 * <p>
 	 * <strong>Component</strong> {@link javax.swing.JTree}<br>
 	 * <strong>Value type</strong> {@link java.lang.Boolean}
 	 */
 	String TREE_WIDE_SELECTION = "JTree.wideSelection";
 
+	/**
+	 * Specifies whether tree uses a wide cell renderer. Default is {@code false}.
+	 * <p>
+	 * <strong>Component</strong> {@link javax.swing.JTree}<br>
+	 * <strong>Value type</strong> {@link java.lang.Boolean}
+	 *
+	 * @since 3.6
+	 */
+	String TREE_WIDE_CELL_RENDERER = "JTree.wideCellRenderer";
+
 	/**
 	 * Specifies whether tree item selection is painted. Default is {@code true}.
 	 * If set to {@code false}, then the tree cell renderer is responsible for painting selection.

flatlaf-core/src/main/java/com/formdev/flatlaf/FlatLaf.java

@@ -37,6 +37,7 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Enumeration;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
@@ -44,6 +45,7 @@ import java.util.MissingResourceException;
 import java.util.Properties;
 import java.util.ResourceBundle;
 import java.util.ServiceLoader;
+import java.util.Set;
 import java.util.function.Consumer;
 import java.util.function.Function;
 import java.util.function.IntUnaryOperator;
@@ -100,6 +102,8 @@ public abstract class FlatLaf
 	private static Map<String, String> globalExtraDefaults;
 	private Map<String, String> extraDefaults;
 	private static Function<String, Color> systemColorGetter;
+	private static Set<String> uiKeyPlatformPrefixes;
+	private static Set<String> uiKeySpecialPrefixes;
 
 	private String desktopPropertyName;
 	private String desktopPropertyName2;
@@ -111,6 +115,7 @@ public abstract class FlatLaf
 	private PopupFactory oldPopupFactory;
 	private MnemonicHandler mnemonicHandler;
 	private boolean subMenuUsabilityHelperInstalled;
+	private LinuxPopupMenuCanceler linuxPopupMenuCanceler;
 
 	private Consumer<UIDefaults> postInitialization;
 	private List<Function<Object, Object>> uiDefaultsGetters;
@@ -305,6 +310,10 @@ public abstract class FlatLaf
 		// install submenu usability helper
 		subMenuUsabilityHelperInstalled = SubMenuUsabilityHelper.install();
 
+		// install Linux/macOS popup menu canceler
+		if( SystemInfo.isLinux || SystemInfo.isMacOS )
+			linuxPopupMenuCanceler = new LinuxPopupMenuCanceler();
+
 		// listen to desktop property changes to update UI if system font or scaling changes
 		if( SystemInfo.isWindows ) {
 			// Windows 10 allows increasing font size independent of scaling:
@@ -359,6 +368,22 @@ public abstract class FlatLaf
 					String.format( "a, address { color: #%06x; }", linkColor.getRGB() & 0xffffff ) );
 			}
 		};
+
+		// Initialize UIScale user scale factor immediately after FlatLaf was activated,
+		// which is necessary to ensure that UIScale.setZoomFactor(float)
+		// scales FlatLaf defaultDont correctly even if UIScale.scale() was not yet used.
+		// In other words: Without this, UIScale.setZoomFactor(float) would
+		// not work correctly if invoked between FlatLaf.setup() and crating UI.
+		PropertyChangeListener listener = new PropertyChangeListener() {
+			@Override
+			public void propertyChange( PropertyChangeEvent e ) {
+				if( "lookAndFeel".equals( e.getPropertyName() ) ) {
+					UIManager.removePropertyChangeListener( this );
+					UIScale.getUserScaleFactor();
+				}
+			}
+		};
+		UIManager.addPropertyChangeListener( listener );
 	}
 
 	@Override
@@ -397,6 +422,12 @@ public abstract class FlatLaf
 			subMenuUsabilityHelperInstalled = false;
 		}
 
+		// uninstall Linux popup menu canceler
+		if( linuxPopupMenuCanceler != null ) {
+			linuxPopupMenuCanceler.uninstall();
+			linuxPopupMenuCanceler = null;
+		}
+
 		// restore default link color
 		new HTMLEditorKit().getStyleSheet().addRule( "a, address { color: blue; }" );
 		postInitialization = null;
@@ -510,10 +541,10 @@ public abstract class FlatLaf
 
 		// load defaults from properties
 		List<Class<?>> lafClassesForDefaultsLoading = getLafClassesForDefaultsLoading();
-		if( lafClassesForDefaultsLoading != null )
-			UIDefaultsLoader.loadDefaultsFromProperties( lafClassesForDefaultsLoading, addons, getAdditionalDefaults(), isDark(), defaults );
-		else
-			UIDefaultsLoader.loadDefaultsFromProperties( getClass(), addons, getAdditionalDefaults(), isDark(), defaults );
+		if( lafClassesForDefaultsLoading == null )
+			lafClassesForDefaultsLoading = UIDefaultsLoader.getLafClassesForDefaultsLoading( getClass() );
+		UIDefaultsLoader.loadDefaultsFromProperties( lafClassesForDefaultsLoading, addons,
+			this::applyAdditionalProperties, getAdditionalDefaults(), isDark(), defaults );
 
 		// setup default font after loading defaults from properties
 		// to allow defining "defaultFont" in properties
@@ -530,9 +561,6 @@ public abstract class FlatLaf
 		// initialize text antialiasing
 		putAATextInfo( defaults );
 
-		// apply additional defaults (e.g. from IntelliJ themes)
-		applyAdditionalDefaults( defaults );
-
 		// allow addons modifying UI defaults
 		for( FlatDefaultsAddon addon : addons )
 			addon.afterDefaultsLoading( this, defaults );
@@ -542,6 +570,9 @@ public abstract class FlatLaf
 			return UIScale.getUserScaleFactor();
 		} );
 
+		// add lazy UI delegate class loading (if necessary)
+		addLazyUIdelegateClassLoading( defaults );
+
 		if( postInitialization != null ) {
 			postInitialization.accept( defaults );
 			postInitialization = null;
@@ -550,7 +581,8 @@ public abstract class FlatLaf
 		return defaults;
 	}
 
-	void applyAdditionalDefaults( UIDefaults defaults ) {
+	// apply additional properties (e.g. from IntelliJ themes)
+	void applyAdditionalProperties( Properties properties ) {
 	}
 
 	protected List<Class<?>> getLafClassesForDefaultsLoading() {
@@ -691,11 +723,22 @@ public abstract class FlatLaf
 			uiFont = ((ActiveFont)defaultFont).derive( baseFont, fontSize -> {
 				return Math.round( fontSize * UIScale.computeFontScaleFactor( baseFont ) );
 			} );
-		}
+		} else if( defaultFont instanceof LazyValue )
+			uiFont = ActiveFont.toUIResource( (Font) ((LazyValue)defaultFont).createValue( defaults ) );
 
 		// increase font size if system property "flatlaf.uiScale" is set
 		uiFont = UIScale.applyCustomScaleFactor( uiFont );
 
+		// apply zoom factor to font size
+		float zoomFactor = UIScale.getZoomFactor();
+		if( zoomFactor != 1 ) {
+			// see also UIScale.setZoomFactor()
+			int unzoomedFontSize = uiFont.getSize();
+			defaults.put( "defaultFont.unzoomedSize", unzoomedFontSize );
+			int newFontSize = Math.max( Math.round( unzoomedFontSize * zoomFactor ), 1 );
+			uiFont = new FontUIResource( uiFont.deriveFont( (float) newFontSize ) );
+		}
+
 		// set default font
 		defaults.put( "defaultFont", uiFont );
 	}
@@ -739,6 +782,53 @@ public abstract class FlatLaf
 		}
 	}
 
+	/**
+	 * Handle UI delegate classes if running in special application where multiple class loaders are involved.
+	 * E.g. in Eclipse plugin or in LibreOffice extension.
+	 * <p>
+	 * Problem: Swing runs in Java's system classloader and FlatLaf is loaded in plugin classloader.
+	 * When Swing tries to load UI delegate class in {@link UIDefaults#getUIClass(String, ClassLoader)},
+	 * invoked from {@link UIDefaults#getUI(JComponent)}, it uses the component's classloader,
+	 * which is Java's system classloader for core Swing components,
+	 * and can not find FlatLaf UI delegates.
+	 * <p>
+	 * Solution: Add lazy values for UI delegate class names.
+	 * Those lazy values use FlatLaf classloader to load UI delegate class.
+	 * This is similar to what {@link UIDefaults#getUIClass(String, ClassLoader)} does.
+	 * <p>
+	 * Not using {@code defaults.put( "ClassLoader", FlatLaf.class.getClassLoader() )},
+	 * which would work for FlatLaf UI delegates, but it would break custom
+	 * UI delegates used in other classloaders.
+	 */
+	private static void addLazyUIdelegateClassLoading( UIDefaults defaults ) {
+		if( FlatLaf.class.getClassLoader() == ClassLoader.getSystemClassLoader() )
+			return; // not necessary
+
+		Map<String, LazyValue> map = new HashMap<>();
+		for( Map.Entry<Object, Object> e : defaults.entrySet() ) {
+			Object key = e.getKey();
+			Object value = e.getValue();
+			if( key instanceof String && ((String)key).endsWith( "UI" ) &&
+				value instanceof String && !defaults.containsKey( value ) )
+			{
+				String className = (String) value;
+				map.put( className, (LazyValue) t -> {
+					try {
+						Class<?> uiClass = FlatLaf.class.getClassLoader().loadClass( className );
+						if( ComponentUI.class.isAssignableFrom( uiClass ) )
+							return uiClass;
+					} catch( ClassNotFoundException ex ) {
+						// ignore
+					}
+
+					// let UIDefaults.getUIClass() try to load UI delegate class
+					return null;
+				} );
+			}
+		}
+		defaults.putAll( map );
+	}
+
 	private void putAATextInfo( UIDefaults defaults ) {
 		if ( SystemInfo.isMacOS && SystemInfo.isJetBrainsJVM ) {
 			// The awt.font.desktophints property suggests sub-pixel anti-aliasing
@@ -848,8 +938,7 @@ public abstract class FlatLaf
 	 * <p>
 	 * Invoke this method before setting the look and feel.
 	 * <p>
-	 * If using Java modules, the package must be opened in {@code module-info.java}.
-	 * Otherwise, use {@link #registerCustomDefaultsSource(URL)}.
+	 * If using Java modules, it is not necessary to open the package in {@code module-info.java}.
 	 *
 	 * @param packageName a package name (e.g. "com.myapp.resources")
 	 */
@@ -896,9 +985,9 @@ public abstract class FlatLaf
 	 * <p>
 	 * See {@link #registerCustomDefaultsSource(String)} for details.
 	 * <p>
-	 * This method is useful if using Java modules and the package containing the properties files
-	 * is not opened in {@code module-info.java}.
 	 * E.g. {@code FlatLaf.registerCustomDefaultsSource( MyApp.class.getResource( "/com/myapp/themes/" ) )}.
+	 * <p>
+	 * If using Java modules, it is not necessary to open the package in {@code module-info.java}.
 	 *
 	 * @param packageUrl a package URL
 	 * @since 2
@@ -1063,6 +1152,92 @@ public abstract class FlatLaf
 		FlatLaf.systemColorGetter = systemColorGetter;
 	}
 
+	/**
+	 * Returns UI key prefix, used in FlatLaf properties files, for light or dark themes.
+	 * Return value is either {@code [light]} or {@code [dark]}.
+	 *
+	 * @since 3.6
+	 */
+	public static String getUIKeyLightOrDarkPrefix( boolean dark ) {
+		return dark ? "[dark]" : "[light]";
+	}
+
+	/**
+	 * Returns set of UI key prefixes, used in FlatLaf properties files, for current platform.
+	 * If UI keys in properties files start with a prefix (e.g. {@code [someprefix]Button.background}),
+	 * then they are only used if that prefix is contained in this set
+	 * (or is one of {@code [light]} or {@code [dark]} depending on current theme).
+	 * <p>
+	 * By default, the set contains one or more of following prefixes:
+	 * <ul>
+	 *   <li>{@code [win]} on Windows
+	 *   <li>{@code [mac]} on macOS
+	 *   <li>{@code [linux]} on Linux
+	 *   <li>{@code [unknown]} on other platforms
+	 *   <li>{@code [gnome]} on Linux with GNOME desktop environment
+	 *   <li>{@code [kde]} on Linux with KDE desktop environment
+	 *   <li>on Linux, the value of the environment variable {@code XDG_CURRENT_DESKTOP},
+	 *       split at colons and converted to lower case (e.g. if value of  {@code XDG_CURRENT_DESKTOP}
+	 *       is {@code ubuntu:GNOME}, then {@code [ubuntu]} and {@code [gnome]})
+	 * </ul>
+	 * <p>
+	 * You can add own prefixes to the set.
+	 * The prefixes must start with '[' and end with ']' characters, otherwise they will be ignored.
+	 *
+	 * @since 3.6
+	 */
+	public static Set<String> getUIKeyPlatformPrefixes() {
+		if( uiKeyPlatformPrefixes == null ) {
+			uiKeyPlatformPrefixes = new HashSet<>();
+			uiKeyPlatformPrefixes.add(
+				SystemInfo.isWindows ? "[win]" :
+				SystemInfo.isMacOS ? "[mac]" :
+				SystemInfo.isLinux ? "[linux]" : "[unknown]" );
+
+			// Linux
+			if( SystemInfo.isLinux ) {
+				if( SystemInfo.isGNOME )
+					uiKeyPlatformPrefixes.add( "[gnome]" );
+				else if( SystemInfo.isKDE )
+					uiKeyPlatformPrefixes.add( "[kde]" );
+
+				// add values from XDG_CURRENT_DESKTOP for other desktops
+				String desktop = System.getenv( "XDG_CURRENT_DESKTOP" );
+				if( desktop != null ) {
+					// XDG_CURRENT_DESKTOP is a colon-separated list of strings
+					// https://specifications.freedesktop.org/desktop-entry-spec/latest/recognized-keys.html#key-onlyshowin
+					// e.g. "ubuntu:GNOME" on Ubuntu 24.10 or "GNOME-Classic:GNOME" on CentOS 7
+					for( String desk : StringUtils.split( desktop.toLowerCase( Locale.ENGLISH ), ':', true, true ) )
+						uiKeyPlatformPrefixes.add( '[' + desk + ']' );
+				}
+			}
+		}
+		return uiKeyPlatformPrefixes;
+	}
+
+	/**
+	 * Returns set of special UI key prefixes, used in FlatLaf properties files.
+	 * Unlike other prefixes, properties with special prefixes are preserved.
+	 * You can access them using `UIManager`. E.g. `UIManager.get( "[someSpecialPrefix]someKey" )`.
+	 * <p>
+	 * By default, the set contains following special prefixes:
+	 * <ul>
+	 *   <li>{@code [style]}
+	 * </ul>
+	 * <p>
+	 * You can add own prefixes to the set.
+	 * The prefixes must start with '[' and end with ']' characters, otherwise they will be ignored.
+	 *
+	 * @since 3.6
+	 */
+	public static Set<String> getUIKeySpecialPrefixes() {
+		if( uiKeySpecialPrefixes == null ) {
+			uiKeySpecialPrefixes = new HashSet<>();
+			uiKeySpecialPrefixes.add( "[style]" );
+		}
+		return uiKeySpecialPrefixes;
+	}
+
 	private static void reSetLookAndFeel() {
 		EventQueue.invokeLater( () -> {
 			LookAndFeel lookAndFeel = UIManager.getLookAndFeel();
@@ -1620,7 +1795,7 @@ public abstract class FlatLaf
 				return toUIResource( baseFont );
 		}
 
-		private FontUIResource toUIResource( Font font ) {
+		private static FontUIResource toUIResource( Font font ) {
 			// make sure that font is a UIResource for LaF switching
 			return (font instanceof FontUIResource)
 				? (FontUIResource) font

flatlaf-core/src/main/java/com/formdev/flatlaf/FlatPropertiesLaf.java

@@ -20,6 +20,9 @@ import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.Locale;
 import java.util.Properties;
@@ -62,8 +65,8 @@ public class FlatPropertiesLaf
 		throws IOException
 	{
 		Properties properties = new Properties();
-		try( InputStream in2 = in ) {
-			properties.load( in2 );
+		try( Reader reader = new InputStreamReader( in, StandardCharsets.UTF_8 )) {
+			properties.load( reader );
 		}
 		return properties;
 	}

flatlaf-core/src/main/java/com/formdev/flatlaf/FlatSystemProperties.java

@@ -16,7 +16,10 @@
 
 package com.formdev.flatlaf;
 
+import javax.swing.JFileChooser;
+import javax.swing.JPopupMenu;
 import javax.swing.SwingUtilities;
+import com.formdev.flatlaf.util.SystemFileChooser;
 import com.formdev.flatlaf.util.UIScale;
 
 /**
@@ -141,12 +144,31 @@ public interface FlatSystemProperties
 	 * (requires Windows 11 or macOS)
 	 * <p>
 	 * <strong>Allowed Values</strong> {@code false} and {@code true}<br>
-	 * <strong>Default</strong> {@code true}; except on macOS 14.4+ where it is {@code false}
+	 * <strong>Default</strong> {@code true}; except in FlatLaf 3.5.x on macOS 14.4+ where it was {@code false}
 	 *
 	 * @since 3.5.2
 	 */
 	String USE_ROUNDED_POPUP_BORDER = "flatlaf.useRoundedPopupBorder";
 
+	/**
+	 * Species whether popup windows may be reused without (temporary) hiding them.
+	 * E.g. if "moving" a tooltip to follow the mouse pointer, normally it is necessary
+	 * to hide the tooltip and show it again at the new location, which causes some
+	 * flicker with heavy-weight popup windows that FlatLaf uses on all platforms.
+	 * <p>
+	 * If {@code true}, hiding popup window is deferred for an event cycle,
+	 * which allows reusing still visible popup window and avoids flicker when "moving" the popup.
+	 * <p>
+	 * Note that {@link JPopupMenu} popup windows (menus and combobox lists) are newer reused.
+	 * <p>
+	 * <strong>Allowed Values</strong> {@code false} and {@code true}<br>
+	 * <strong>Default</strong> {@code true}
+	 *
+	 * @since 3.6.2
+	 */
+	String REUSE_VISIBLE_POPUP_WINDOW = "flatlaf.reuseVisiblePopupWindow";
+
+
 	/**
 	 * Specifies whether vertical text position is corrected when UI is scaled on HiDPI screens.
 	 * <p>
@@ -226,6 +248,17 @@ public interface FlatSystemProperties
 	 */
 	String USE_SUB_MENU_SAFE_TRIANGLE = "flatlaf.useSubMenuSafeTriangle";
 
+	/**
+	 * Specifies whether {@link SystemFileChooser} uses operating system file dialogs.
+	 * If set to {@code false}, the {@link JFileChooser} is used instead.
+	 * <p>
+	 * <strong>Allowed Values</strong> {@code false} and {@code true}<br>
+	 * <strong>Default</strong> {@code true}
+	 *
+	 * @since 3.7
+	 */
+	String USE_SYSTEM_FILE_CHOOSER = "flatlaf.useSystemFileChooser";
+
 	/**
 	 * Checks whether a system property is set and returns {@code true} if its value
 	 * is {@code "true"} (case-insensitive), otherwise it returns {@code false}.

flatlaf-core/src/main/java/com/formdev/flatlaf/IntelliJTheme.java

@@ -16,7 +16,6 @@
 
 package com.formdev.flatlaf;
 
-import java.awt.Color;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
@@ -25,20 +24,16 @@ import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
-import java.util.Enumeration;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Iterator;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Properties;
 import java.util.Set;
-import java.util.Map.Entry;
-import javax.swing.UIDefaults;
-import javax.swing.plaf.ColorUIResource;
 import com.formdev.flatlaf.json.Json;
 import com.formdev.flatlaf.json.ParseException;
-import com.formdev.flatlaf.util.ColorFunctions;
 import com.formdev.flatlaf.util.LoggingFacade;
 import com.formdev.flatlaf.util.StringUtils;
 import com.formdev.flatlaf.util.SystemInfo;
@@ -63,13 +58,11 @@ public class IntelliJTheme
 	public final boolean dark;
 	public final String author;
 
-	private final boolean isMaterialUILite;
+	private final Map<String, String> jsonColors;
+	private final Map<String, Object> jsonUI;
+	private final Map<String, Object> jsonIcons;
 
-	private Map<String, String> colors;
-	private Map<String, Object> ui;
-	private Map<String, Object> icons;
-
-	private Map<String, ColorUIResource> namedColors = Collections.emptyMap();
+	private Map<String, String> namedColors = Collections.emptyMap();
 
 	/**
 	 * Loads a IntelliJ .theme.json file from the given input stream,
@@ -84,7 +77,7 @@ public class IntelliJTheme
 		try {
 		    return FlatLaf.setup( createLaf( in ) );
 		} catch( Exception ex ) {
-			LoggingFacade.INSTANCE.logSevere(  "FlatLaf: Failed to load IntelliJ theme", ex );
+			LoggingFacade.INSTANCE.logSevere( "FlatLaf: Failed to load IntelliJ theme", ex );
 		    return false;
 		}
 	}
@@ -138,94 +131,90 @@ public class IntelliJTheme
 	    dark = Boolean.parseBoolean( (String) json.get( "dark" ) );
 	    author = (String) json.get( "author" );
 
-		isMaterialUILite = author.equals( "Mallowigi" );
-
-	    colors = (Map<String, String>) json.get( "colors" );
-	    ui = (Map<String, Object>) json.get( "ui" );
-	    icons = (Map<String, Object>) json.get( "icons" );
+	    jsonColors = (Map<String, String>) json.get( "colors" );
+	    jsonUI = (Map<String, Object>) json.get( "ui" );
+	    jsonIcons = (Map<String, Object>) json.get( "icons" );
 	}
 
-	private void applyProperties( UIDefaults defaults ) {
-		if( ui == null )
+	private void applyProperties( Properties properties ) {
+		if( jsonUI == null )
 			return;
 
-		defaults.put( "Component.isIntelliJTheme", true );
+		put( properties, "Component.isIntelliJTheme", "true" );
 
 		// enable button shadows
-		defaults.put( "Button.paintShadow", true );
-		defaults.put( "Button.shadowWidth", dark ? 2 : 1 );
+		put( properties, "Button.paintShadow", "true" );
+		put( properties, "Button.shadowWidth", dark ? "2" : "1" );
 
-		Map<Object, Object> themeSpecificDefaults = removeThemeSpecificDefaults( defaults );
+		Map<String, String> themeSpecificProps = removeThemeSpecificProps( properties );
+		Set<String> jsonUIKeys = new HashSet<>();
 
-		loadNamedColors( defaults );
+		// Json node "colors"
+		loadNamedColors( properties, jsonUIKeys );
 
-		// convert Json "ui" structure to UI defaults
-		ArrayList<Object> defaultsKeysCache = new ArrayList<>();
-		Set<String> uiKeys = new HashSet<>();
-		for( Map.Entry<String, Object> e : ui.entrySet() )
-			apply( e.getKey(), e.getValue(), defaults, defaultsKeysCache, uiKeys );
+		// convert Json "ui" structure to UI properties
+		for( Map.Entry<String, Object> e : jsonUI.entrySet() )
+			apply( e.getKey(), e.getValue(), properties, jsonUIKeys );
 
-		applyColorPalette( defaults );
-		applyCheckBoxColors( defaults );
+		// set FlatLaf variables
+		copyIfSetInJson( properties, jsonUIKeys, "@background", "Panel.background", "*.background" );
+		copyIfSetInJson( properties, jsonUIKeys, "@foreground", "CheckBox.foreground", "*.foreground" );
+		copyIfSetInJson( properties, jsonUIKeys, "@accentBaseColor",
+			"ColorPalette.accent", // Material UI Lite, Hiberbee
+			"ColorPalette.accentColor", // Dracula, One Dark
+			"ProgressBar.foreground",
+			"*.selectionBackground" );
+		copyIfSetInJson( properties, jsonUIKeys, "@accentUnderlineColor", "*.underlineColor", "TabbedPane.underlineColor" );
+		copyIfSetInJson( properties, jsonUIKeys, "@selectionBackground", "*.selectionBackground" );
+		copyIfSetInJson( properties, jsonUIKeys, "@selectionForeground", "*.selectionForeground" );
+		copyIfSetInJson( properties, jsonUIKeys, "@selectionInactiveBackground", "*.selectionInactiveBackground" );
+		copyIfSetInJson( properties, jsonUIKeys, "@selectionInactiveForeground", "*.selectionInactiveForeground" );
+
+		// Json node "icons/ColorPalette"
+		applyIconsColorPalette( properties );
+
+		// apply "CheckBox.icon." colors
+		applyCheckBoxColors( properties );
 
 		// copy values
 		for( Map.Entry<String, String> e : uiKeyCopying.entrySet() ) {
-			Object value = defaults.get( e.getValue() );
+			Object value = properties.get( e.getValue() );
 			if( value != null )
-				defaults.put( e.getKey(), value );
+				put( properties, e.getKey(), value );
 		}
 
 		// IDEA does not paint button background if disabled, but FlatLaf does
-		Object panelBackground = defaults.get( "Panel.background" );
-		defaults.put( "Button.disabledBackground", panelBackground );
-		defaults.put( "ToggleButton.disabledBackground", panelBackground );
+		put( properties, "Button.disabledBackground", "@disabledBackground" );
+		put( properties, "ToggleButton.disabledBackground", "@disabledBackground" );
 
-		// fix Button borders
-		copyIfNotSet( defaults, "Button.focusedBorderColor", "Component.focusedBorderColor", uiKeys );
-		defaults.put( "Button.hoverBorderColor", defaults.get( "Button.focusedBorderColor" ) );
-		defaults.put( "HelpButton.hoverBorderColor", defaults.get( "Button.focusedBorderColor" ) );
-
-		// IDEA uses an SVG icon for the help button, but paints the background with Button.startBackground and Button.endBackground
-		Object helpButtonBackground = defaults.get( "Button.startBackground" );
-		Object helpButtonBorderColor = defaults.get( "Button.startBorderColor" );
-		if( helpButtonBackground == null )
-			helpButtonBackground = defaults.get( "Button.background" );
-		if( helpButtonBorderColor == null )
-			helpButtonBorderColor = defaults.get( "Button.borderColor" );
-		defaults.put( "HelpButton.background", helpButtonBackground );
-		defaults.put( "HelpButton.borderColor", helpButtonBorderColor );
-		defaults.put( "HelpButton.disabledBackground", panelBackground );
-		defaults.put( "HelpButton.disabledBorderColor", defaults.get( "Button.disabledBorderColor" ) );
-		defaults.put( "HelpButton.focusedBorderColor", defaults.get( "Button.focusedBorderColor" ) );
-		defaults.put( "HelpButton.focusedBackground", defaults.get( "Button.focusedBackground" ) );
+		// fix Button
+		fixStartEnd( properties, jsonUIKeys, "Button.startBackground", "Button.endBackground", "Button.background" );
+		fixStartEnd( properties, jsonUIKeys, "Button.startBorderColor", "Button.endBorderColor", "Button.borderColor" );
+		fixStartEnd( properties, jsonUIKeys, "Button.default.startBackground", "Button.default.endBackground", "Button.default.background" );
+		fixStartEnd( properties, jsonUIKeys, "Button.default.startBorderColor", "Button.default.endBorderColor", "Button.default.borderColor" );
 
 		// IDEA uses TextField.background for editable ComboBox and Spinner
-		Object textFieldBackground = get( defaults, themeSpecificDefaults, "TextField.background" );
-		defaults.put( "ComboBox.editableBackground", textFieldBackground );
-		defaults.put( "Spinner.background", textFieldBackground );
-
-		// Spinner arrow button always has same colors as ComboBox arrow button
-		defaults.put( "Spinner.buttonBackground", defaults.get( "ComboBox.buttonEditableBackground" ) );
-		defaults.put( "Spinner.buttonArrowColor", defaults.get( "ComboBox.buttonArrowColor" ) );
-		defaults.put( "Spinner.buttonDisabledArrowColor", defaults.get( "ComboBox.buttonDisabledArrowColor" ) );
+		Object textFieldBackground = get( properties, themeSpecificProps, "TextField.background" );
+		put( properties, "ComboBox.editableBackground", textFieldBackground );
+		put( properties, "Spinner.background", textFieldBackground );
 
 		// some themes specify colors for TextField.background, but forget to specify it for other components
 		// (probably because those components are not used in IntelliJ IDEA)
-		putAll( defaults, textFieldBackground,
+		putAll( properties, textFieldBackground,
 			"EditorPane.background",
 			"FormattedTextField.background",
 			"PasswordField.background",
 			"TextArea.background",
 			"TextPane.background"
 		);
-		putAll( defaults, get( defaults, themeSpecificDefaults, "TextField.selectionBackground" ),
+		putAll( properties, get( properties, themeSpecificProps, "TextField.selectionBackground" ),
 			"EditorPane.selectionBackground",
 			"FormattedTextField.selectionBackground",
 			"PasswordField.selectionBackground",
 			"TextArea.selectionBackground",
 			"TextPane.selectionBackground"
 		);
-		putAll( defaults, get( defaults, themeSpecificDefaults, "TextField.selectionForeground" ),
+		putAll( properties, get( properties, themeSpecificProps, "TextField.selectionForeground" ),
 			"EditorPane.selectionForeground",
 			"FormattedTextField.selectionForeground",
 			"PasswordField.selectionForeground",
@@ -235,7 +224,7 @@ public class IntelliJTheme
 
 		// fix disabled and not-editable backgrounds for text components, combobox and spinner
 		// (IntelliJ IDEA does not use those colors; instead it used background color of parent)
-		putAll( defaults, panelBackground,
+		putAll( properties, "@disabledBackground",
 			"ComboBox.disabledBackground",
 			"EditorPane.disabledBackground", "EditorPane.inactiveBackground",
 			"FormattedTextField.disabledBackground", "FormattedTextField.inactiveBackground",
@@ -246,132 +235,143 @@ public class IntelliJTheme
 			"TextPane.disabledBackground", "TextPane.inactiveBackground"
 		);
 
-		// fix ToggleButton
-		if( !uiKeys.contains( "ToggleButton.startBackground" ) && !uiKeys.contains( "*.startBackground" ) )
-			defaults.put( "ToggleButton.startBackground", defaults.get( "Button.startBackground" ) );
-		if( !uiKeys.contains( "ToggleButton.endBackground" ) && !uiKeys.contains( "*.endBackground" ) )
-			defaults.put( "ToggleButton.endBackground", defaults.get( "Button.endBackground" ) );
-		if( !uiKeys.contains( "ToggleButton.foreground" ) && uiKeys.contains( "Button.foreground" ) )
-			defaults.put( "ToggleButton.foreground", defaults.get( "Button.foreground" ) );
-
 		// fix DesktopPane background (use Panel.background and make it 5% darker/lighter)
-		Color desktopBackgroundBase = defaults.getColor( "Panel.background" );
-		Color desktopBackground = ColorFunctions.applyFunctions( desktopBackgroundBase,
-			new ColorFunctions.HSLIncreaseDecrease( 2, dark, 5, false, true ) );
-		defaults.put( "Desktop.background", new ColorUIResource( desktopBackground ) );
-
-		// fix List and Table background colors in Material UI Lite themes
-		if( isMaterialUILite ) {
-			defaults.put( "List.background", defaults.get( "Tree.background" ) );
-			defaults.put( "Table.background", defaults.get( "Tree.background" ) );
-		}
+		put( properties, "Desktop.background", dark ? "lighten($Panel.background,5%)" : "darken($Panel.background,5%)" );
 
 		// limit tree row height
-		int rowHeight = defaults.getInt( "Tree.rowHeight" );
+		String rowHeightStr = (String) properties.get( "Tree.rowHeight" );
+		int rowHeight = (rowHeightStr != null) ? Integer.parseInt( rowHeightStr ) : 0;
 		if( rowHeight > 22 )
-			defaults.put( "Tree.rowHeight", 22 );
+			put( properties, "Tree.rowHeight", "22" );
 
-		// get (and remove) theme specific wildcard replacements, which override all other defaults that end with same suffix
-		HashMap<String, Object> wildcards = new HashMap<>();
-		Iterator<Entry<Object, Object>> it = themeSpecificDefaults.entrySet().iterator();
+		// get (and remove) theme specific wildcard replacements, which override all other properties that end with same suffix
+		HashMap<String, String> wildcardProps = new HashMap<>();
+		Iterator<Map.Entry<String, String>> it = themeSpecificProps.entrySet().iterator();
 		while( it.hasNext() ) {
-			Entry<Object, Object> e = it.next();
-			String key = (String) e.getKey();
+			Map.Entry<String, String> e = it.next();
+			String key = e.getKey();
 			if( key.startsWith( "*." ) ) {
-				wildcards.put( key.substring( "*.".length() ), e.getValue() );
+				wildcardProps.put( key, e.getValue() );
 				it.remove();
 			}
 		}
 
-		// override UI defaults with theme specific wildcard replacements
-		if( !wildcards.isEmpty() ) {
-			for( Object key : defaults.keySet().toArray() ) {
-				int dot;
-				if( !(key instanceof String) ||
-					(dot = ((String)key).lastIndexOf( '.' )) < 0 )
-				  continue;
-
-				String wildcardKey = ((String)key).substring( dot + 1 );
-				Object wildcardValue = wildcards.get( wildcardKey );
-				if( wildcardValue != null )
-					defaults.put( key, wildcardValue );
-			}
+		// override properties with theme specific wildcard replacements
+		if( !wildcardProps.isEmpty() ) {
+			for( Map.Entry<String, String> e : wildcardProps.entrySet() )
+				applyWildcard( properties, e.getKey(), e.getValue() );
 		}
 
-		// apply theme specific UI defaults at the end to allow overwriting
-		for( Map.Entry<Object, Object> e : themeSpecificDefaults.entrySet() ) {
-			Object key = e.getKey();
-			Object value = e.getValue();
+		// apply theme specific properties at the end to allow overwriting
+		for( Map.Entry<String, String> e : themeSpecificProps.entrySet() ) {
+			String key = e.getKey();
+			String value = e.getValue();
 
 			// append styles to existing styles
-			if( key instanceof String && ((String)key).startsWith( "[style]" ) ) {
-				Object oldValue = defaults.get( key );
+			if( key.startsWith( "[style]" ) ) {
+				String oldValue = (String) properties.get( key );
 				if( oldValue != null )
 					value = oldValue + "; " + value;
 			}
 
-			defaults.put( key, value );
+			put( properties, key, value );
 		}
-
-		// let Java release memory
-		colors = null;
-		ui = null;
-		icons = null;
 	}
 
-	private Object get( UIDefaults defaults, Map<Object, Object> themeSpecificDefaults, String key ) {
-		return themeSpecificDefaults.getOrDefault( key, defaults.get( key ) );
+	private String get( Properties properties, Map<String, String> themeSpecificProps, String key ) {
+		return themeSpecificProps.getOrDefault( key, (String) properties.get( key ) );
 	}
 
-	private void putAll( UIDefaults defaults, Object value, String... keys ) {
+	private void put( Properties properties, Object key, Object value ) {
+		if( value != null )
+			properties.put( key, value );
+		else
+			properties.remove( key );
+	}
+
+	private void putAll( Properties properties, Object value, String... keys ) {
 		for( String key : keys )
-			defaults.put( key, value );
+			put( properties, key, value );
 	}
 
-	private Map<Object, Object> removeThemeSpecificDefaults( UIDefaults defaults ) {
-		// search for theme specific UI defaults keys
+	private void copyIfSetInJson( Properties properties, Set<String> jsonUIKeys, String destKey, String... srcKeys ) {
+		for( String srcKey : srcKeys ) {
+			if( jsonUIKeys.contains( srcKey ) ) {
+				Object value = properties.get( srcKey );
+				if( value != null ) {
+					put( properties, destKey, value );
+					break;
+				}
+			}
+		}
+	}
+
+	private void fixStartEnd( Properties properties, Set<String> jsonUIKeys, String startKey, String endKey, String key ) {
+		if( jsonUIKeys.contains( startKey ) && jsonUIKeys.contains( endKey ) )
+			put( properties, key, "$" + startKey );
+	}
+
+	private Map<String, String> removeThemeSpecificProps( Properties properties ) {
+		// search for theme specific properties keys
 		ArrayList<String> themeSpecificKeys = new ArrayList<>();
-		for( Object key : defaults.keySet() ) {
-			if( key instanceof String && ((String)key).startsWith( "[" ) && !((String)key).startsWith( "[style]" ) )
+		for( Object key : properties.keySet() ) {
+			if( ((String)key).startsWith( "{" ) )
 				themeSpecificKeys.add( (String) key );
 		}
 
-		// remove theme specific UI defaults and remember only those for current theme
-		Map<Object, Object> themeSpecificDefaults = new HashMap<>();
-		String currentThemePrefix = '[' + name.replace( ' ', '_' ) + ']';
-		String currentThemeAndAuthorPrefix = '[' + name.replace( ' ', '_' ) + "---" + author.replace( ' ', '_' ) + ']';
-		String currentAuthorPrefix = "[author-" + author.replace( ' ', '_' ) + ']';
-		String allThemesPrefix = "[*]";
-		String[] prefixes = { currentThemePrefix, currentThemeAndAuthorPrefix, currentAuthorPrefix, allThemesPrefix };
+		// special prefixes (priority from highest to lowest)
+		String currentThemePrefix = '{' + name.replace( ' ', '_' ) + '}';
+		String currentThemeAndAuthorPrefix = '{' + name.replace( ' ', '_' ) + "---" + author.replace( ' ', '_' ) + '}';
+		String currentAuthorPrefix = "{author-" + author.replace( ' ', '_' ) + '}';
+		String lightOrDarkPrefix = dark ? "{*-dark}" : "{*-light}";
+		String allThemesPrefix = "{*}";
+		String[] prefixes = { currentThemePrefix, currentThemeAndAuthorPrefix, currentAuthorPrefix, lightOrDarkPrefix, allThemesPrefix };
+
+		// collect values for special prefixes in its own maps
+		@SuppressWarnings( "unchecked" )
+		Map<String, String>[] maps = new Map[prefixes.length];
+		for( int i = 0; i < maps.length; i++ )
+			maps[i] = new HashMap<>();
+
+		// remove theme specific properties and remember only those for current theme
 		for( String key : themeSpecificKeys ) {
-			Object value = defaults.remove( key );
-			for( String prefix : prefixes ) {
+			String value = (String) properties.remove( key );
+			for( int i = 0; i < prefixes.length; i++ ) {
+				String prefix = prefixes[i];
 				if( key.startsWith( prefix ) ) {
-					themeSpecificDefaults.put( key.substring( prefix.length() ), value );
+					maps[i].put( key.substring( prefix.length() ), value );
 					break;
 				}
 			}
 		}
 
-		return themeSpecificDefaults;
+		// copy values into single map (from lowest to highest priority)
+		Map<String, String> themeSpecificProps = new HashMap<>();
+		for( int i = maps.length - 1; i >= 0; i-- )
+			themeSpecificProps.putAll( maps[i] );
+		return themeSpecificProps;
 	}
 
 	/**
 	 * http://www.jetbrains.org/intellij/sdk/docs/reference_guide/ui_themes/themes_customize.html#defining-named-colors
 	 */
-	private void loadNamedColors( UIDefaults defaults ) {
-		if( colors == null )
+	private void loadNamedColors( Properties properties, Set<String> jsonUIKeys ) {
+		if( jsonColors == null )
 			return;
 
 		namedColors = new HashMap<>();
 
-		for( Map.Entry<String, String> e : colors.entrySet() ) {
+		for( Map.Entry<String, String> e : jsonColors.entrySet() ) {
 			String value = e.getValue();
-			ColorUIResource color = parseColor( value );
-			if( color != null ) {
+			if( canParseColor( value ) ) {
 				String key = e.getKey();
-				namedColors.put( key, color );
-				defaults.put( "ColorPalette." + key, color );
+				namedColors.put( key, value );
+
+				String uiKey = "ColorPalette." + key;
+				put( properties, uiKey, value );
+
+				// this is only necessary for copyIfSetInJson() (used for accent color)
+				jsonUIKeys.add( uiKey );
 			}
 		}
 	}
@@ -380,7 +380,7 @@ public class IntelliJTheme
 	 * http://www.jetbrains.org/intellij/sdk/docs/reference_guide/ui_themes/themes_customize.html#custom-ui-control-colors
 	 */
 	@SuppressWarnings( "unchecked" )
-	private void apply( String key, Object value, UIDefaults defaults, ArrayList<Object> defaultsKeysCache, Set<String> uiKeys ) {
+	private void apply( String key, Object value, Properties properties, Set<String> jsonUIKeys ) {
 		if( value instanceof Map ) {
 			Map<String, Object> map = (Map<String, Object>)value;
 			if( map.containsKey( "os.default" ) || map.containsKey( "os.windows" ) || map.containsKey( "os.mac" ) || map.containsKey( "os.linux" ) ) {
@@ -388,12 +388,12 @@ public class IntelliJTheme
 					: SystemInfo.isMacOS ? "os.mac"
 					: SystemInfo.isLinux ? "os.linux" : null;
 				if( osKey != null && map.containsKey( osKey ) )
-					apply( key, map.get( osKey ), defaults, defaultsKeysCache, uiKeys );
+					apply( key, map.get( osKey ), properties, jsonUIKeys );
 				else if( map.containsKey( "os.default" ) )
-					apply( key, map.get( "os.default" ), defaults, defaultsKeysCache, uiKeys );
+					apply( key, map.get( "os.default" ), properties, jsonUIKeys );
 			} else {
 				for( Map.Entry<String, Object> e : map.entrySet() )
-					apply( key + '.' + e.getKey(), e.getValue(), defaults, defaultsKeysCache, uiKeys );
+					apply( key + '.' + e.getKey(), e.getValue(), properties, jsonUIKeys );
 			}
 		} else {
 			if( "".equals( value ) )
@@ -408,25 +408,40 @@ public class IntelliJTheme
 				key.equals( "Tree.rightChildIndent" ) )
 			  return; // ignore
 
+			// ignore icons
+			if( key.endsWith( "Icon" ) )
+				return; // ignore
+
 			// map keys
 			key = uiKeyMapping.getOrDefault( key, key );
 			if( key.isEmpty() )
 				return; // ignore key
 
-			// exclude properties
+			// exclude properties (1st level)
 			int dot = key.indexOf( '.' );
-			if( dot > 0 && uiKeyExcludes.contains( key.substring( 0, dot + 1 ) ) )
+			if( dot > 0 && uiKeyExcludesStartsWith.contains( key.substring( 0, dot + 1 ) ) )
 				return;
 
-			if( uiKeyDoNotOverride.contains( key ) && uiKeys.contains( key ) )
+			// exclude properties (2st level)
+			int dot2 = (dot > 0) ? key.indexOf( '.', dot + 1 ) : -1;
+			if( dot2 > 0 && uiKeyExcludesStartsWith.contains( key.substring( 0, dot2 + 1 ) ) )
 				return;
 
-			uiKeys.add( key );
+			// exclude properties (contains)
+			for( String s : uiKeyExcludesContains ) {
+				if( key.contains( s ) )
+					return;
+			}
 
-			String valueStr = value.toString();
+			if( uiKeyDoNotOverride.contains( key ) && jsonUIKeys.contains( key ) )
+				return;
+
+			jsonUIKeys.add( key );
+
+			String valueStr = value.toString().trim();
 
 			// map named colors
-			Object uiValue = namedColors.get( valueStr );
+			String uiValue = namedColors.get( valueStr );
 
 			// parse value
 			if( uiValue == null ) {
@@ -445,47 +460,64 @@ public class IntelliJTheme
 
 				// parse value
 				try {
-					uiValue = UIDefaultsLoader.parseValue( key, valueStr, null );
+					UIDefaultsLoader.parseValue( key, valueStr, null );
+					uiValue = valueStr;
 				} catch( RuntimeException ex ) {
-					UIDefaultsLoader.logParseError( key, valueStr, ex, false );
+					UIDefaultsLoader.logParseError( key, valueStr, ex, true );
 					return; // ignore invalid value
 				}
 			}
 
-			if( key.startsWith( "*." ) ) {
-				// wildcard
-				String tail = key.substring( 1 );
+			// wildcards
+			if( applyWildcard( properties, key, uiValue ) )
+				return;
 
-				// because we can not iterate over the UI defaults keys while
-				// modifying UI defaults in the same loop, we have to copy the keys
-				if( defaultsKeysCache.size() != defaults.size() ) {
-					defaultsKeysCache.clear();
-					Enumeration<Object> e = defaults.keys();
-					while( e.hasMoreElements() )
-						defaultsKeysCache.add( e.nextElement() );
-				}
-
-				// replace all values in UI defaults that match the wildcard key
-				for( Object k : defaultsKeysCache ) {
-					if( k.equals( "Desktop.background" ) ||
-						k.equals( "DesktopIcon.background" ) ||
-						k.equals( "TabbedPane.focusColor" ) )
-					  continue;
-
-					if( k instanceof String ) {
-						// support replacing of mapped keys
-						// (e.g. set ComboBox.buttonEditableBackground to *.background
-						// because it is mapped from ComboBox.ArrowButton.background)
-						String km = uiKeyInverseMapping.getOrDefault( k, (String) k );
-						if( km.endsWith( tail ) && !((String)k).startsWith( "CheckBox.icon." ) )
-							defaults.put( k, uiValue );
-					}
-				}
-			} else
-				defaults.put( key, uiValue );
+			put( properties, key, uiValue );
 		}
 	}
 
+	private boolean applyWildcard( Properties properties, String key, String value ) {
+		if( !key.startsWith( "*." ) )
+			return false;
+
+		String tail = key.substring( 1 );
+
+		// because we can not iterate over the properties keys while
+		// modifying properties in the same loop, we have to copy the keys
+		String[] keys = properties.keySet().toArray( new String[properties.size()] );
+
+		// replace all values in properties that match the wildcard key
+		for( String k : keys ) {
+			if( k.startsWith( "*" ) ||
+				k.startsWith( "@" ) ||
+				k.startsWith( "HelpButton." ) ||
+				k.startsWith( "JX" ) ||
+				k.startsWith( "Jide" ) ||
+				k.startsWith( "ProgressBar.selection" ) ||
+				k.startsWith( "TitlePane." ) ||
+				k.startsWith( "ToggleButton.tab." ) ||
+				k.equals( "Desktop.background" ) ||
+				k.equals( "DesktopIcon.background" ) ||
+				k.equals( "TabbedPane.focusColor" ) ||
+				k.endsWith( ".hoverBackground" ) ||
+				k.endsWith( ".pressedBackground" ) )
+			  continue;
+
+			// support replacing of mapped keys
+			// (e.g. set ComboBox.buttonEditableBackground to *.background
+			// because it is mapped from ComboBox.ArrowButton.background)
+			String km = uiKeyInverseMapping.getOrDefault( k, k );
+			if( km.endsWith( tail ) && !k.startsWith( "CheckBox.icon." ) )
+				put( properties, k, value );
+		}
+
+		// Note: also add wildcards to properties and let UIDefaultsLoader
+		//       process it on BasicLookAndFeel UI defaults
+		put( properties, key, value );
+
+		return true;
+	}
+
 	private String fixColorIfValid( String newColorStr, String colorStr ) {
 		try {
 			// check whether it is valid
@@ -497,11 +529,11 @@ public class IntelliJTheme
 		}
 	}
 
-	private void applyColorPalette( UIDefaults defaults ) {
-		if( icons == null )
+	private void applyIconsColorPalette( Properties properties ) {
+		if( jsonIcons == null )
 			return;
 
-		Object palette = icons.get( "ColorPalette" );
+		Object palette = jsonIcons.get( "ColorPalette" );
 		if( !(palette instanceof Map) )
 			return;
 
@@ -510,44 +542,48 @@ public class IntelliJTheme
 		for( Map.Entry<String, Object> e : colorPalette.entrySet() ) {
 			String key = e.getKey();
 			Object value = e.getValue();
-			if( key.startsWith( "Checkbox." ) || !(value instanceof String) )
+			if( key.startsWith( "Checkbox." ) || key.startsWith( "#" ) || !(value instanceof String) )
 				continue;
 
 			if( dark )
 				key = StringUtils.removeTrailing( key, ".Dark" );
 
-			ColorUIResource color = toColor( (String) value );
+			String color = toColor( (String) value );
 			if( color != null )
-				defaults.put( key, color );
+				put( properties, key, color );
 		}
 	}
 
-	private ColorUIResource toColor( String value ) {
+	private String toColor( String value ) {
+		if( value.startsWith( "##" ) )
+			value = fixColorIfValid( value.substring( 1 ), value );
+
 		// map named colors
-		ColorUIResource color = namedColors.get( value );
+		String color = namedColors.get( value );
 
 		// parse color
-		return (color != null) ? color : parseColor( value );
+		return (color != null) ? color : (canParseColor( value ) ? value : null);
 	}
 
-	private ColorUIResource parseColor( String value ) {
+	private boolean canParseColor( String value ) {
 		try {
-			return UIDefaultsLoader.parseColor( value );
+			return UIDefaultsLoader.parseColor( value ) != null;
 		} catch( IllegalArgumentException ex ) {
-			return null;
+			LoggingFacade.INSTANCE.logSevere( "FlatLaf: Failed to parse color: '" + value + '\'', ex );
+			return false;
 		}
 	}
 
 	/**
 	 * Because IDEA uses SVGs for check boxes and radio buttons, the colors for
 	 * these two components are specified in "icons > ColorPalette".
-	 * FlatLaf uses vector icons and expects colors for the two components in UI defaults.
+	 * FlatLaf uses vector icons and expects colors for the two components in properties.
 	 */
-	private void applyCheckBoxColors( UIDefaults defaults ) {
-		if( icons == null )
+	private void applyCheckBoxColors( Properties properties ) {
+		if( jsonIcons == null )
 			return;
 
-		Object palette = icons.get( "ColorPalette" );
+		Object palette = jsonIcons.get( "ColorPalette" );
 		if( !(palette instanceof Map) )
 			return;
 
@@ -569,9 +605,9 @@ public class IntelliJTheme
 				if( !dark && newKey.startsWith( checkBoxIconPrefix ) )
 					newKey = "CheckBox.icon[filled].".concat( newKey.substring( checkBoxIconPrefix.length() ) );
 
-				ColorUIResource color = toColor( (String) value );
+				String color = toColor( (String) value );
 				if( color != null ) {
-					defaults.put( newKey, color );
+					put( properties, newKey, color );
 
 					String key2 = checkboxDuplicateColors.get( key + ".Dark");
 					if( key2 != null ) {
@@ -592,7 +628,7 @@ public class IntelliJTheme
 
 						String newKey2 = checkboxKeyMapping.get( key2 );
 						if( newKey2 != null )
-							defaults.put( newKey2, color );
+							put( properties, newKey2, color );
 					}
 				}
 
@@ -603,13 +639,13 @@ public class IntelliJTheme
 		// update hover, pressed and focused colors
 		if( checkboxModified ) {
 			// for non-filled checkbox/radiobutton used in dark themes
-			defaults.remove( "CheckBox.icon.focusWidth" );
-			defaults.put( "CheckBox.icon.hoverBorderColor", defaults.get( "CheckBox.icon.focusedBorderColor" ) );
+			properties.remove( "CheckBox.icon.focusWidth" );
+			put( properties, "CheckBox.icon.hoverBorderColor", properties.get( "CheckBox.icon.focusedBorderColor" ) );
 
 			// for filled checkbox/radiobutton used in light themes
-			defaults.remove( "CheckBox.icon[filled].focusWidth" );
-			defaults.put( "CheckBox.icon[filled].hoverBorderColor", defaults.get( "CheckBox.icon[filled].focusedBorderColor" ) );
-			defaults.put( "CheckBox.icon[filled].focusedSelectedBackground", defaults.get( "CheckBox.icon[filled].selectedBackground" ) );
+			properties.remove( "CheckBox.icon[filled].focusWidth" );
+			put( properties, "CheckBox.icon[filled].hoverBorderColor", properties.get( "CheckBox.icon[filled].focusedBorderColor" ) );
+			put( properties, "CheckBox.icon[filled].focusedSelectedBackground", properties.get( "CheckBox.icon[filled].selectedBackground" ) );
 
 			if( dark ) {
 				// IDEA Darcula checkBoxFocused.svg, checkBoxSelectedFocused.svg,
@@ -623,22 +659,16 @@ public class IntelliJTheme
 					"CheckBox.icon[filled].focusedSelectedBorderColor",
 				};
 				for( String key : focusedBorderColorKeys ) {
-					Color color = defaults.getColor( key );
-					if( color != null ) {
-						defaults.put( key, new ColorUIResource( new Color(
-							(color.getRGB() & 0xffffff) | 0xa6000000, true ) ) );
-					}
+					Object color = properties.get( key );
+					if( color != null )
+						put( properties, key, "fade(" + color + ", 65%)" );
 				}
 			}
 		}
 	}
 
-	private void copyIfNotSet( UIDefaults defaults, String destKey, String srcKey, Set<String> uiKeys ) {
-		if( !uiKeys.contains( destKey ) )
-			defaults.put( destKey, defaults.get( srcKey ) );
-	}
-
-	private static final Set<String> uiKeyExcludes;
+	private static final Set<String> uiKeyExcludesStartsWith;
+	private static final String[] uiKeyExcludesContains;
 	private static final Set<String> uiKeyDoNotOverride;
 	/** Rename UI default keys (key --> value). */
 	private static final Map<String, String> uiKeyMapping = new HashMap<>();
@@ -650,29 +680,30 @@ public class IntelliJTheme
 
 	static {
 		// IntelliJ UI properties that are not used in FlatLaf
-		uiKeyExcludes = new HashSet<>( Arrays.asList(
+		uiKeyExcludesStartsWith = new HashSet<>( Arrays.asList(
 			"ActionButton.", "ActionToolbar.", "ActionsList.", "AppInspector.", "AssignedMnemonic.", "Autocomplete.",
 			"AvailableMnemonic.",
-			"BigSpinner.", "Bookmark.", "BookmarkIcon.", "BookmarkMnemonicAssigned.", "BookmarkMnemonicAvailable.",
+			"Badge.", "Banner.", "BigSpinner.", "Bookmark.", "BookmarkIcon.", "BookmarkMnemonicAssigned.", "BookmarkMnemonicAvailable.",
 			"BookmarkMnemonicCurrent.", "BookmarkMnemonicIcon.", "Borders.", "Breakpoint.",
-			"Canvas.", "CodeWithMe.", "ComboBoxButton.", "CompletionPopup.", "ComplexPopup.", "Content.",
-			"CurrentMnemonic.", "Counter.",
-			"Debugger.", "DebuggerPopup.", "DebuggerTabs.", "DefaultTabs.", "Dialog.", "DialogWrapper.", "DragAndDrop.",
+			"Canvas.", "CellEditor.", "Code.", "CodeWithMe.", "ColumnControlButton.", "CombinedDiff.", "ComboBoxButton.",
+			"CompilationCharts.", "CompletionPopup.", "ComplexPopup.", "Content.", "ContextHelp.", "CurrentMnemonic.", "Counter.",
+			"Debugger.", "DebuggerPopup.", "DebuggerTabs.", "DefaultTabs.", "Dialog.", "DialogWrapper.",
+			"DisclosureButton.", "DragAndDrop.",
 			"Editor.", "EditorGroupsTabs.", "EditorTabs.",
-			"FileColor.", "FlameGraph.", "Focus.",
+			"FileColor.", "FindPopup.", "FlameGraph.", "Focus.",
 			"Git.", "Github.", "GotItTooltip.", "Group.", "Gutter.", "GutterTooltip.",
 			"HeaderColor.", "HelpTooltip.", "Hg.",
-			"IconBadge.", "InformationHint.", "InplaceRefactoringPopup.",
-			"Lesson.", "Link.", "LiveIndicator.",
-			"MainMenu.", "MainToolbar.", "MemoryIndicator.", "MlModelBinding.", "MnemonicIcon.",
+			"IconBadge.", "InformationHint.", "InlineBanner.", "InplaceRefactoringPopup.",
+			"Lesson.", "LineProfiler.", "Link.", "LiveIndicator.",
+			"MainMenu.", "MainToolbar.", "MainWindow.", "MemoryIndicator.", "MlModelBinding.", "MnemonicIcon.",
 			"NavBar.", "NewClass.", "NewPSD.", "Notification.", "Notifications.", "NotificationsToolwindow.",
 			"OnePixelDivider.", "OptionButton.", "Outline.",
-			"ParameterInfo.", "Plugins.", "ProgressIcon.", "PsiViewer.",
-			"ReviewList.", "RunWidget.",
+			"ParameterInfo.", "PresentationAssistant.", "Plugins.", "Profiler.", "ProgressIcon.", "PsiViewer.",
+			"Resizable.", "Review.", "ReviewList.", "RunToolbar.", "RunWidget.",
 			"ScreenView.", "SearchEverywhere.", "SearchFieldWithExtension.", "SearchMatch.", "SearchOption.",
 			"SearchResults.", "SegmentedButton.", "Settings.", "SidePanel.", "Space.", "SpeedSearch.", "StateWidget.",
-			"StatusBar.",
-			"Tag.", "TipOfTheDay.", "ToolbarComboWidget.", "ToolWindow.",
+			"StatusBar.", "StripeToolbar.",
+			"Tag.", "TipOfTheDay.", "ToolbarComboWidget.", "ToolWindow.", "TrialWidget.",
 			"UIDesigner.", "UnattendedHostStatus.",
 			"ValidationTooltip.", "VersionControl.",
 			"WelcomeScreen.",
@@ -683,11 +714,24 @@ public class IntelliJTheme
 			// possible typos in .theme.json files
 			"Checkbox.", "Toolbar.", "Tooltip.", "UiDesigner.", "link."
 		) );
+		uiKeyExcludesContains = new String[] {
+			".darcula."
+		};
 
 		uiKeyDoNotOverride = new HashSet<>( Arrays.asList(
 			"TabbedPane.selectedForeground"
 		) );
 
+		// "*."
+		uiKeyMapping.put( "*.fontFace", "" ); // ignore (used in OnePauintxi themes)
+		uiKeyMapping.put( "*.fontSize", "" ); // ignore (used in OnePauintxi themes)
+
+		// Button
+		uiKeyMapping.put( "Button.minimumSize", "" ); // ignore (used in Material Theme UI Lite)
+
+		// CheckBox.iconSize
+		uiKeyMapping.put( "CheckBox.iconSize", "" ); // ignore (used in Rider themes)
+
 		// ComboBox
 		uiKeyMapping.put( "ComboBox.background",                        "" ); // ignore
 		uiKeyMapping.put( "ComboBox.buttonBackground",                  "" ); // ignore
@@ -696,14 +740,17 @@ public class IntelliJTheme
 		uiKeyMapping.put( "ComboBox.ArrowButton.disabledIconColor",     "ComboBox.buttonDisabledArrowColor" );
 		uiKeyMapping.put( "ComboBox.ArrowButton.iconColor",             "ComboBox.buttonArrowColor" );
 		uiKeyMapping.put( "ComboBox.ArrowButton.nonEditableBackground", "ComboBox.buttonBackground" );
-		uiKeyCopying.put( "ComboBox.buttonSeparatorColor",              "Component.borderColor" );
-		uiKeyCopying.put( "ComboBox.buttonDisabledSeparatorColor",      "Component.disabledBorderColor" );
 
 		// Component
 		uiKeyMapping.put( "Component.inactiveErrorFocusColor",   "Component.error.borderColor" );
 		uiKeyMapping.put( "Component.errorFocusColor",           "Component.error.focusedBorderColor" );
 		uiKeyMapping.put( "Component.inactiveWarningFocusColor", "Component.warning.borderColor" );
 		uiKeyMapping.put( "Component.warningFocusColor",         "Component.warning.focusedBorderColor" );
+		uiKeyMapping.put( "Component.inactiveSuccessFocusColor", "Component.success.borderColor" );
+		uiKeyMapping.put( "Component.successFocusColor",         "Component.success.focusedBorderColor" );
+
+		// Label
+		uiKeyMapping.put( "Label.disabledForegroundColor", "" ); // ignore (used in Material Theme UI Lite)
 
 		// Link
 		uiKeyMapping.put( "Link.activeForeground", "Component.linkColor" );
@@ -711,10 +758,7 @@ public class IntelliJTheme
 		// Menu
 		uiKeyMapping.put( "Menu.border",                "Menu.margin" );
 		uiKeyMapping.put( "MenuItem.border",            "MenuItem.margin" );
-		uiKeyCopying.put( "CheckBoxMenuItem.margin",    "MenuItem.margin" );
-		uiKeyCopying.put( "RadioButtonMenuItem.margin", "MenuItem.margin" );
 		uiKeyMapping.put( "PopupMenu.border",           "PopupMenu.borderInsets" );
-		uiKeyCopying.put( "MenuItem.underlineSelectionColor", "TabbedPane.underlineColor" );
 
 		// IDEA uses List.selectionBackground also for menu selection
 		uiKeyCopying.put( "Menu.selectionBackground",                "List.selectionBackground" );
@@ -722,13 +766,14 @@ public class IntelliJTheme
 		uiKeyCopying.put( "CheckBoxMenuItem.selectionBackground",    "List.selectionBackground" );
 		uiKeyCopying.put( "RadioButtonMenuItem.selectionBackground", "List.selectionBackground" );
 
-		// ProgressBar
+		// ProgressBar: IDEA uses ProgressBar.trackColor and ProgressBar.progressColor
 		uiKeyMapping.put( "ProgressBar.background",    "" ); // ignore
 		uiKeyMapping.put( "ProgressBar.foreground",    "" ); // ignore
 		uiKeyMapping.put( "ProgressBar.trackColor",    "ProgressBar.background" );
 		uiKeyMapping.put( "ProgressBar.progressColor", "ProgressBar.foreground" );
-		uiKeyCopying.put( "ProgressBar.selectionForeground", "ProgressBar.background" );
-		uiKeyCopying.put( "ProgressBar.selectionBackground", "ProgressBar.foreground" );
+
+		// RadioButton
+		uiKeyMapping.put( "RadioButton.iconSize", "" ); // ignore (used in Rider themes)
 
 		// ScrollBar
 		uiKeyMapping.put( "ScrollBar.trackColor", "ScrollBar.track" );
@@ -738,34 +783,30 @@ public class IntelliJTheme
 		uiKeyMapping.put( "Separator.separatorColor", "Separator.foreground" );
 
 		// Slider
+		uiKeyMapping.put( "Slider.buttonColor", "Slider.thumbColor" );
+		uiKeyMapping.put( "Slider.buttonBorderColor", "" ); // ignore
+		uiKeyMapping.put( "Slider.thumb", "" ); // ignore (used in Material Theme UI Lite)
+		uiKeyMapping.put( "Slider.track", "" ); // ignore (used in Material Theme UI Lite)
+		uiKeyMapping.put( "Slider.trackDisabled", "" ); // ignore (used in Material Theme UI Lite)
 		uiKeyMapping.put( "Slider.trackWidth", "" ); // ignore (used in Material Theme UI Lite)
-		uiKeyCopying.put( "Slider.trackValueColor", "ProgressBar.foreground" );
-		uiKeyCopying.put( "Slider.thumbColor", "ProgressBar.foreground" );
-		uiKeyCopying.put( "Slider.trackColor", "ProgressBar.background" );
-
-		// Spinner
-		uiKeyCopying.put( "Spinner.buttonSeparatorColor",         "Component.borderColor" );
-		uiKeyCopying.put( "Spinner.buttonDisabledSeparatorColor", "Component.disabledBorderColor" );
 
 		// TabbedPane
 		uiKeyMapping.put( "DefaultTabs.underlinedTabBackground", "TabbedPane.selectedBackground" );
 		uiKeyMapping.put( "DefaultTabs.underlinedTabForeground", "TabbedPane.selectedForeground" );
 		uiKeyMapping.put( "DefaultTabs.inactiveUnderlineColor",  "TabbedPane.inactiveUnderlineColor" );
+		uiKeyMapping.put( "TabbedPane.tabAreaInsets", "" ); // ignore (used in Material Theme UI Lite)
+
+		// TableHeader
+		uiKeyMapping.put( "TableHeader.cellBorder", "" ); // ignore (used in Material Theme UI Lite)
+		uiKeyMapping.put( "TableHeader.height", "" ); // ignore (used in Material Theme UI Lite)
 
 		// TitlePane
-		uiKeyCopying.put( "TitlePane.inactiveBackground",     "TitlePane.background" );
 		uiKeyMapping.put( "TitlePane.infoForeground",         "TitlePane.foreground" );
 		uiKeyMapping.put( "TitlePane.inactiveInfoForeground", "TitlePane.inactiveForeground" );
 
 		for( Map.Entry<String, String> e : uiKeyMapping.entrySet() )
 			uiKeyInverseMapping.put( e.getValue(), e.getKey() );
 
-		uiKeyCopying.put( "ToggleButton.tab.underlineColor",         "TabbedPane.underlineColor" );
-		uiKeyCopying.put( "ToggleButton.tab.disabledUnderlineColor", "TabbedPane.disabledUnderlineColor" );
-		uiKeyCopying.put( "ToggleButton.tab.selectedBackground",     "TabbedPane.selectedBackground" );
-		uiKeyCopying.put( "ToggleButton.tab.hoverBackground",        "TabbedPane.hoverColor" );
-		uiKeyCopying.put( "ToggleButton.tab.focusBackground",        "TabbedPane.focusColor" );
-
 		checkboxKeyMapping.put( "Checkbox.Background.Default",  "CheckBox.icon.background" );
 		checkboxKeyMapping.put( "Checkbox.Background.Disabled", "CheckBox.icon.disabledBackground" );
 		checkboxKeyMapping.put( "Checkbox.Border.Default",      "CheckBox.icon.borderColor" );
@@ -818,17 +859,15 @@ public class IntelliJTheme
 		}
 
 		@Override
-		void applyAdditionalDefaults( UIDefaults defaults ) {
-			theme.applyProperties( defaults );
+		void applyAdditionalProperties( Properties properties ) {
+			theme.applyProperties( properties );
 		}
 
 		@Override
 		protected ArrayList<Class<?>> getLafClassesForDefaultsLoading() {
-			ArrayList<Class<?>> lafClasses = new ArrayList<>();
-			lafClasses.add( FlatLaf.class );
-			lafClasses.add( theme.dark ? FlatDarkLaf.class : FlatLightLaf.class );
-			lafClasses.add( theme.dark ? FlatDarculaLaf.class : FlatIntelliJLaf.class );
-			lafClasses.add( ThemeLaf.class );
+			ArrayList<Class<?>> lafClasses = UIDefaultsLoader.getLafClassesForDefaultsLoading( getClass() );
+			lafClasses.add( 1, theme.dark ? FlatDarkLaf.class : FlatLightLaf.class );
+			lafClasses.add( 2, theme.dark ? FlatDarculaLaf.class : FlatIntelliJLaf.class );
 			return lafClasses;
 		}
 	}

flatlaf-core/src/main/java/com/formdev/flatlaf/LinuxPopupMenuCanceler.java

@@ -0,0 +1,172 @@
+/*
+ * Copyright 2025 FormDev Software GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.formdev.flatlaf;
+
+import java.awt.Component;
+import java.awt.Window;
+import java.awt.event.ComponentEvent;
+import java.awt.event.ComponentListener;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+import javax.swing.JPopupMenu;
+import javax.swing.MenuElement;
+import javax.swing.MenuSelectionManager;
+import javax.swing.SwingUtilities;
+import javax.swing.event.ChangeEvent;
+import javax.swing.event.ChangeListener;
+
+/**
+ * Cancels (hides) popup menus on Linux and macOS.
+ * <p>
+ * On Linux, popups are not hidden under following conditions, which results in
+ * misplaced popups:
+ * <ul>
+ *   <li>window moved or resized
+ *   <li>window maximized or restored
+ *   <li>window iconified
+ *   <li>window deactivated (e.g. activated other application)
+ * </ul>
+ *
+ * On macOS, popups are usually automatically hidden, but not always.
+ * When resizing a window, then it depends where clicking to start resizing (and on the Java version).
+ * E.g. with Java 25, clicking at bottom-right corner inside of the window does not hide the popups.
+ * But clicking on same corner outside of the window, hides the popup.
+ *
+ * <p>
+ * On Windows, popups are automatically hidden.
+ * <p>
+ * The implementation is similar to what's done in
+ * {@code javax.swing.plaf.basic.BasicPopupMenuUI.MouseGrabber},
+ * but only hides popup in some conditions.
+ *
+ * @author Karl Tauber
+ */
+class LinuxPopupMenuCanceler
+	extends WindowAdapter
+	implements ChangeListener, ComponentListener
+{
+	private MenuElement[] lastPathSelectedPath;
+	private Window window;
+
+	LinuxPopupMenuCanceler() {
+		MenuSelectionManager msm = MenuSelectionManager.defaultManager();
+		msm.addChangeListener( this );
+
+		lastPathSelectedPath = msm.getSelectedPath();
+		if( lastPathSelectedPath.length > 0 )
+			addWindowListeners( lastPathSelectedPath[0] );
+	}
+
+	void uninstall() {
+		MenuSelectionManager.defaultManager().removeChangeListener( this );
+	}
+
+	private void addWindowListeners( MenuElement selected ) {
+		removeWindowListeners();
+
+		// see BasicPopupMenuUI.MouseGrabber.grabWindow()
+		Component invoker = selected.getComponent();
+		if( invoker instanceof JPopupMenu )
+			invoker = ((JPopupMenu)invoker).getInvoker();
+		window = (invoker instanceof Window)
+			? (Window) invoker
+			: SwingUtilities.windowForComponent( invoker );
+
+		if( window != null ) {
+			window.addWindowListener( this );
+			window.addComponentListener( this );
+		}
+	}
+
+	private void removeWindowListeners() {
+		if( window != null ) {
+			window.removeWindowListener( this );
+			window.removeComponentListener( this );
+			window = null;
+		}
+	}
+
+	private void cancelPopupMenu() {
+		try {
+			MenuSelectionManager msm = MenuSelectionManager.defaultManager();
+			MenuElement[] selectedPath = msm.getSelectedPath();
+			for( MenuElement e : selectedPath ) {
+				if( e instanceof JPopupMenu )
+					((JPopupMenu)e).putClientProperty( "JPopupMenu.firePopupMenuCanceled", true );
+			}
+			msm.clearSelectedPath();
+		} catch( RuntimeException ex ) {
+			removeWindowListeners();
+			throw ex;
+		} catch( Error ex ) {
+			removeWindowListeners();
+			throw ex;
+		}
+	}
+
+	//---- ChangeListener ----
+
+	@Override
+	public void stateChanged( ChangeEvent e ) {
+		MenuElement[] selectedPath = MenuSelectionManager.defaultManager().getSelectedPath();
+
+		if( selectedPath.length == 0 )
+			removeWindowListeners();
+		else if( lastPathSelectedPath.length == 0 )
+			addWindowListeners( selectedPath[0] );
+
+		lastPathSelectedPath = selectedPath;
+	}
+
+	//---- WindowListener ----
+
+	@Override
+	public void windowIconified( WindowEvent e ) {
+		cancelPopupMenu();
+	}
+
+	@Override
+	public void windowDeactivated( WindowEvent e ) {
+		cancelPopupMenu();
+	}
+
+	@Override
+	public void windowClosing( WindowEvent e ) {
+		cancelPopupMenu();
+	}
+
+	//---- ComponentListener ----
+
+	@Override
+	public void componentResized( ComponentEvent e ) {
+		cancelPopupMenu();
+	}
+
+	@Override
+	public void componentMoved( ComponentEvent e ) {
+		cancelPopupMenu();
+	}
+
+	@Override
+	public void componentShown( ComponentEvent e ) {
+	}
+
+	@Override
+	public void componentHidden( ComponentEvent e ) {
+		cancelPopupMenu();
+	}
+}

flatlaf-core/src/main/java/com/formdev/flatlaf/UIDefaultsLoader.java

@@ -25,12 +25,15 @@ import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Reader;
 import java.io.StreamTokenizer;
 import java.io.StringReader;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Executable;
 import java.lang.reflect.Method;
 import java.net.URL;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
@@ -41,6 +44,9 @@ import java.util.Locale;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Properties;
+import java.util.Set;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.function.Consumer;
 import java.util.function.Function;
 import javax.swing.Icon;
 import javax.swing.UIDefaults;
@@ -61,7 +67,6 @@ import com.formdev.flatlaf.util.HSLColor;
 import com.formdev.flatlaf.util.LoggingFacade;
 import com.formdev.flatlaf.util.SoftCache;
 import com.formdev.flatlaf.util.StringUtils;
-import com.formdev.flatlaf.util.SystemInfo;
 import com.formdev.flatlaf.util.UIScale;
 
 /**
@@ -85,15 +90,14 @@ class UIDefaultsLoader
 	private static final String WILDCARD_PREFIX = "*.";
 
 	static final String KEY_VARIABLES = "FlatLaf.internal.variables";
+	static final String KEY_PROPERTIES = "FlatLaf.internal.properties";
 
 	private static int parseColorDepth;
 
 	private static Map<String, ColorUIResource> systemColorCache;
 	private static final SoftCache<String, Object> fontCache = new SoftCache<>();
 
-	static void loadDefaultsFromProperties( Class<?> lookAndFeelClass, List<FlatDefaultsAddon> addons,
-		Properties additionalDefaults, boolean dark, UIDefaults defaults )
-	{
+	static ArrayList<Class<?>> getLafClassesForDefaultsLoading( Class<?> lookAndFeelClass ) {
 		// determine classes in class hierarchy in reverse order
 		ArrayList<Class<?>> lafClasses = new ArrayList<>();
 		for( Class<?> lafClass = lookAndFeelClass;
@@ -102,20 +106,62 @@ class UIDefaultsLoader
 		{
 			lafClasses.add( 0, lafClass );
 		}
+		return lafClasses;
+	}
 
-		loadDefaultsFromProperties( lafClasses, addons, additionalDefaults, dark, defaults );
+	static Properties newUIProperties( boolean dark ) {
+		// UI key prefixes
+		String lightOrDarkPrefix = FlatLaf.getUIKeyLightOrDarkPrefix( dark );
+		Set<String> platformPrefixes = FlatLaf.getUIKeyPlatformPrefixes();
+		Set<String> specialPrefixes = FlatLaf.getUIKeySpecialPrefixes();
+
+		return new Properties() {
+			@Override
+			public void load( InputStream in ) throws IOException {
+				// use UTF-8 to load properties file
+				try( Reader reader = new InputStreamReader( in, StandardCharsets.UTF_8 )) {
+					super.load( reader );
+				}
+			}
+
+			@Override
+			public synchronized Object put( Object k, Object value ) {
+				// process key prefixes (while loading properties files)
+				String key = (String) k;
+				while( key.startsWith( "[" ) ) {
+					int closeIndex = key.indexOf( ']' );
+					if( closeIndex < 0 )
+						return null; // ignore property with invalid prefix
+
+					String prefix = key.substring( 0, closeIndex + 1 );
+
+					if( specialPrefixes.contains( prefix ) )
+						break; // keep special prefix
+
+					if( !lightOrDarkPrefix.equals( prefix ) && !platformPrefixes.contains( prefix ) )
+						return null; // ignore property
+
+					// prefix is known and enabled --> remove prefix
+					key = key.substring( closeIndex + 1 );
+				}
+
+				return super.put( key, value );
+			}
+		};
 	}
 
 	static void loadDefaultsFromProperties( List<Class<?>> lafClasses, List<FlatDefaultsAddon> addons,
-		Properties additionalDefaults, boolean dark, UIDefaults defaults )
+		Consumer<Properties> intellijThemesHook, Properties additionalDefaults, boolean dark, UIDefaults defaults )
 	{
 		try {
 			// temporary cache system colors while loading defaults,
 			// which avoids that system color getter is invoked multiple times
 			systemColorCache = (FlatLaf.getSystemColorGetter() != null) ? new HashMap<>() : null;
 
+			// all properties files will be loaded into this map
+			Properties properties = newUIProperties( dark );
+
 			// load core properties files
-			Properties properties = new Properties();
 			for( Class<?> lafClass : lafClasses ) {
 				String propertiesName = '/' + lafClass.getName().replace( '.', '/' ) + ".properties";
 				try( InputStream in = lafClass.getResourceAsStream( propertiesName ) ) {
@@ -142,6 +188,10 @@ class UIDefaultsLoader
 					addonClassLoaders.add( addonClassLoader );
 			}
 
+			// apply IntelliJ themes properties
+			if( intellijThemesHook != null )
+				intellijThemesHook.accept( properties );
+
 			// load custom properties files (usually provided by applications)
 			List<Object> customDefaultsSources = FlatLaf.getCustomDefaultsSources();
 			int size = (customDefaultsSources != null) ? customDefaultsSources.size() : 0;
@@ -160,16 +210,46 @@ class UIDefaultsLoader
 					if( classLoader == null )
 						classLoader = FlatLaf.class.getClassLoader();
 
+					boolean found = false;
 					for( Class<?> lafClass : lafClasses ) {
 						String propertiesName = packageName + '/' + simpleClassName( lafClass ) + ".properties";
 						try( InputStream in = classLoader.getResourceAsStream( propertiesName ) ) {
-							if( in != null )
+							if( in != null ) {
 								properties.load( in );
+								found = true;
+							}
+						}
+					}
+
+					// fallback for named Java modules
+					if( !found ) {
+						// Get package URL using ClassLoader.getResource(...) because this works
+						// also in named Java modules, even without opening the package in module-info.java.
+						// This extra step is necessary because ClassLoader.getResource("<package>/<file>.properties")
+						// does not work for named Java modules.
+						URL url = classLoader.getResource( packageName );
+						if( url == null )
+							continue;
+
+						String packageUrl = url.toExternalForm();
+						if( !packageUrl.endsWith( "/" ) )
+							packageUrl = packageUrl.concat( "/" );
+
+						for( Class<?> lafClass : lafClasses ) {
+							URL propertiesUrl = new URL( packageUrl + simpleClassName( lafClass ) + ".properties" );
+
+							try( InputStream in = propertiesUrl.openStream() ) {
+								properties.load( in );
+							} catch( FileNotFoundException ex ) {
+								// ignore
+							}
 						}
 					}
 				} else if( source instanceof URL ) {
 					// load from package URL
-					URL packageUrl = (URL) source;
+					String packageUrl = ((URL)source).toExternalForm();
+					if( !packageUrl.endsWith( "/" ) )
+						packageUrl = packageUrl.concat( "/" );
 					for( Class<?> lafClass : lafClasses ) {
 						URL propertiesUrl = new URL( packageUrl + simpleClassName( lafClass ) + ".properties" );
 
@@ -198,41 +278,6 @@ class UIDefaultsLoader
 			if( additionalDefaults != null )
 				properties.putAll( additionalDefaults );
 
-			// collect all platform specific keys (but do not modify properties)
-			ArrayList<String> platformSpecificKeys = new ArrayList<>();
-			for( Object okey : properties.keySet() ) {
-				String key = (String) okey;
-				if( key.startsWith( "[" ) &&
-					(key.startsWith( "[win]" ) ||
-					 key.startsWith( "[mac]" ) ||
-					 key.startsWith( "[linux]" ) ||
-					 key.startsWith( "[light]" ) ||
-					 key.startsWith( "[dark]" )) )
-				  platformSpecificKeys.add( key );
-			}
-
-			// remove platform specific properties and re-add only properties
-			// for current platform, but with platform prefix removed
-			if( !platformSpecificKeys.isEmpty() ) {
-				// handle light/dark specific properties
-				String lightOrDarkPrefix = dark ? "[dark]" : "[light]";
-				for( String key : platformSpecificKeys ) {
-					if( key.startsWith( lightOrDarkPrefix ) )
-						properties.put( key.substring( lightOrDarkPrefix.length() ), properties.remove( key ) );
-				}
-
-				// handle platform specific properties
-				String platformPrefix =
-					SystemInfo.isWindows ? "[win]" :
-					SystemInfo.isMacOS ? "[mac]" :
-					SystemInfo.isLinux ? "[linux]" : "[unknown]";
-				for( String key : platformSpecificKeys ) {
-					Object value = properties.remove( key );
-					if( key.startsWith( platformPrefix ) )
-						properties.put( key.substring( platformPrefix.length() ), value );
-				}
-			}
-
 			// get (and remove) wildcard replacements, which override all other defaults that end with same suffix
 			HashMap<String, String> wildcards = new HashMap<>();
 			Iterator<Entry<Object, Object>> it = properties.entrySet().iterator();
@@ -287,6 +332,15 @@ class UIDefaultsLoader
 			// remember variables in defaults to allow using them in styles
 			defaults.put( KEY_VARIABLES, variables );
 
+			// remember properties (for testing)
+			if( FlatSystemProperties.getBoolean( KEY_PROPERTIES, false ) ) {
+				Properties properties2 = new Properties();
+				properties2.putAll( properties );
+				for( Map.Entry<String, String> e : wildcards.entrySet() )
+					properties2.put( WILDCARD_PREFIX + e.getKey(), e.getValue() );
+				defaults.put( KEY_PROPERTIES, properties2 );
+			}
+
 			// clear/disable system color cache
 			systemColorCache = null;
 		} catch( IOException ex ) {
@@ -378,7 +432,7 @@ class UIDefaultsLoader
 	enum ValueType { UNKNOWN, STRING, BOOLEAN, CHARACTER, INTEGER, INTEGERORFLOAT, FLOAT, BORDER, ICON, INSETS, DIMENSION, COLOR, FONT,
 		SCALEDINTEGER, SCALEDFLOAT, SCALEDINSETS, SCALEDDIMENSION, INSTANCE, CLASS, GRAYFILTER, NULL, LAZY }
 
-	private static final ValueType[] tempResultValueType = new ValueType[1];
+	private static final AtomicReference<ValueType> tempResultValueType = new AtomicReference<>();
 	private static Map<Class<?>, ValueType> javaValueTypes;
 	private static Map<String, ValueType> knownValueTypes;
 
@@ -388,7 +442,7 @@ class UIDefaultsLoader
 		return parseValue( key, value, valueType, null, v -> v, Collections.emptyList() );
 	}
 
-	static Object parseValue( String key, String value, Class<?> javaValueType, ValueType[] resultValueType,
+	static Object parseValue( String key, String value, Class<?> javaValueType, AtomicReference<ValueType> resultValueType,
 		Function<String, String> resolver, List<ClassLoader> addonClassLoaders )
 			throws IllegalArgumentException
 	{
@@ -397,7 +451,7 @@ class UIDefaultsLoader
 
 		// do not parse styles here
 		if( key.startsWith( "[style]" ) ) {
-			resultValueType[0] = ValueType.STRING;
+			resultValueType.set( ValueType.STRING );
 			return value;
 		}
 
@@ -405,7 +459,7 @@ class UIDefaultsLoader
 
 		// null
 		if( value.equals( "null" ) || value.isEmpty() ) {
-			resultValueType[0] = ValueType.NULL;
+			resultValueType.set( ValueType.NULL );
 			return null;
 		}
 
@@ -461,14 +515,14 @@ class UIDefaultsLoader
 		} else {
 			// false, true
 			switch( value ) {
-				case "false":	resultValueType[0] = ValueType.BOOLEAN; return false;
-				case "true":	resultValueType[0] = ValueType.BOOLEAN; return true;
+				case "false":	resultValueType.set( ValueType.BOOLEAN ); return false;
+				case "true":	resultValueType.set( ValueType.BOOLEAN ); return true;
 			}
 
 			// check for function "lazy"
 			//     Syntax: lazy(uiKey)
 			if( value.startsWith( "lazy(" ) && value.endsWith( ")" ) ) {
-				resultValueType[0] = ValueType.LAZY;
+				resultValueType.set( ValueType.LAZY );
 				String uiKey = StringUtils.substringTrimmed( value, 5, value.length() - 1 );
 				return (LazyValue) t -> {
 					return lazyUIManagerGet( uiKey );
@@ -549,7 +603,7 @@ class UIDefaultsLoader
 			}
 		}
 
-		resultValueType[0] = valueType;
+		resultValueType.set( valueType );
 
 		// parse value
 		switch( valueType ) {
@@ -576,14 +630,14 @@ class UIDefaultsLoader
 			default:
 				// string
 				if( value.startsWith( "\"" ) && value.endsWith( "\"" ) ) {
-					resultValueType[0] = ValueType.STRING;
+					resultValueType.set( ValueType.STRING );
 					return value.substring( 1, value.length() - 1 );
 				}
 
 				// colors
 				if( value.startsWith( "#" ) || value.endsWith( ")" ) ) {
 					Object color = parseColorOrFunction( value, resolver );
-					resultValueType[0] = (color != null) ? ValueType.COLOR : ValueType.NULL;
+					resultValueType.set( (color != null) ? ValueType.COLOR : ValueType.NULL );
 					return color;
 				}
 
@@ -595,7 +649,7 @@ class UIDefaultsLoader
 					// integer
 					try {
 						Integer integer = parseInteger( value );
-						resultValueType[0] = ValueType.INTEGER;
+						resultValueType.set( ValueType.INTEGER );
 						return integer;
 					} catch( NumberFormatException ex ) {
 						// ignore
@@ -604,7 +658,7 @@ class UIDefaultsLoader
 					// float
 					try {
 						Float f = parseFloat( value );
-						resultValueType[0] = ValueType.FLOAT;
+						resultValueType.set( ValueType.FLOAT );
 						return f;
 					} catch( NumberFormatException ex ) {
 						// ignore
@@ -612,7 +666,7 @@ class UIDefaultsLoader
 				}
 
 				// string
-				resultValueType[0] = ValueType.STRING;
+				resultValueType.set( ValueType.STRING );
 				return value;
 		}
 	}
@@ -637,22 +691,26 @@ class UIDefaultsLoader
 		if( value.indexOf( ',' ) >= 0 ) {
 			// Syntax: top,left,bottom,right[,lineColor[,lineThickness[,arc]]]
 			List<String> parts = splitFunctionParams( value, ',' );
-			Insets insets = parseInsets( value );
-			ColorUIResource lineColor = (parts.size() >= 5 && !parts.get( 4 ).isEmpty())
-				? (ColorUIResource) parseColorOrFunction( resolver.apply( parts.get( 4 ) ), resolver )
-				: null;
-			float lineThickness = (parts.size() >= 6 && !parts.get( 5 ).isEmpty())
-				? parseFloat( parts.get( 5 ) )
-				: 1f;
-			int arc = (parts.size() >= 7) && !parts.get( 6 ).isEmpty()
-				? parseInteger( parts.get( 6 ) )
-				: -1;
+			try {
+				Insets insets = parseInsets( value );
+				ColorUIResource lineColor = (parts.size() >= 5 && !parts.get( 4 ).isEmpty())
+					? (ColorUIResource) parseColorOrFunction( resolver.apply( parts.get( 4 ) ), resolver )
+					: null;
+				float lineThickness = (parts.size() >= 6 && !parts.get( 5 ).isEmpty())
+					? parseFloat( parts.get( 5 ) )
+					: 1f;
+				int arc = (parts.size() >= 7) && !parts.get( 6 ).isEmpty()
+					? parseInteger( parts.get( 6 ) )
+					: -1;
 
-			return (LazyValue) t -> {
-				return (lineColor != null || arc > 0)
-					? new FlatLineBorder( insets, lineColor, lineThickness, arc )
-					: new FlatEmptyBorder( insets );
-			};
+				return (LazyValue) t -> {
+					return (lineColor != null || arc > 0)
+						? new FlatLineBorder( insets, lineColor, lineThickness, arc )
+						: new FlatEmptyBorder( insets );
+				};
+			} catch( RuntimeException ex ) {
+				throw new IllegalArgumentException( "invalid border '" + value + "' (" + ex.getMessage() + ")" );
+			}
 		} else
 			return parseInstance( value, resolver, addonClassLoaders );
 	}
@@ -723,7 +781,7 @@ class UIDefaultsLoader
 				Integer.parseInt( numbers.get( 1 ) ),
 				Integer.parseInt( numbers.get( 2 ) ),
 				Integer.parseInt( numbers.get( 3 ) ) );
-		} catch( NumberFormatException ex ) {
+		} catch( NumberFormatException | IndexOutOfBoundsException ex ) {
 			throw new IllegalArgumentException( "invalid insets '" + value + "'" );
 		}
 	}
@@ -736,7 +794,7 @@ class UIDefaultsLoader
 			return new DimensionUIResource(
 				Integer.parseInt( numbers.get( 0 ) ),
 				Integer.parseInt( numbers.get( 1 ) ) );
-		} catch( NumberFormatException ex ) {
+		} catch( NumberFormatException | IndexOutOfBoundsException ex ) {
 			throw new IllegalArgumentException( "invalid size '" + value + "'" );
 		}
 	}
@@ -830,6 +888,7 @@ class UIDefaultsLoader
 		try {
 			switch( function ) {
 				case "if":			return parseColorIf( value, params, resolver );
+				case "lazy":		return parseColorLazy( value, params, resolver );
 				case "systemColor":	return parseColorSystemColor( value, params, resolver );
 				case "rgb":			return parseColorRgbOrRgba( false, params, resolver );
 				case "rgba":		return parseColorRgbOrRgba( true, params, resolver );
@@ -877,6 +936,32 @@ class UIDefaultsLoader
 		return parseColorOrFunction( resolver.apply( ifValue ), resolver );
 	}
 
+	/**
+	 * Syntax: lazy(uiKey)
+	 * <p>
+	 * This "lazy" function is only used if the "lazy" is passed as parameter to another
+	 * color function. Otherwise, the general "lazy" function is used.
+	 * <p>
+	 * Note: The color is resolved immediately, not lazy, because it is passed as parameter to another color function.
+	 * So e.g. {@code darken(lazy(List.background), 10%)} is the same as {@code darken($List.background, 10%)}.
+	 * <p>
+	 * Only useful if a property is defined as lazy and that property is used
+	 * in another property's color function. E.g.
+	 *
+	 * <pre>{@code
+	 * someProperty = lazy(List.background)
+	 * anotherProperty = darken($someProperty, 10%)
+	 * }</pre>
+	 */
+	private static Object parseColorLazy( String value, List<String> params, Function<String, String> resolver )
+		throws IllegalArgumentException
+	{
+		if( params.size() != 1 )
+			throw newMissingParametersException( value );
+
+		return parseColorOrFunction( resolver.apply( PROPERTY_PREFIX + params.get( 0 ) ), resolver );
+	}
+
 	/**
 	 * Syntax: systemColor(name[,defaultValue])
 	 *   - name: system color name
@@ -974,7 +1059,7 @@ class UIDefaultsLoader
 	 *         fadein(color,amount[,options]) or fadeout(color,amount[,options])
 	 *   - color: a color (e.g. #f00) or a color function
 	 *   - amount: percentage 0-100%
-	 *   - options: [relative] [autoInverse] [noAutoInverse] [lazy] [derived]
+	 *   - options: [relative] [autoInverse] [noAutoInverse] [derived] [lazy]
 	 */
 	private static Object parseColorHSLIncreaseDecrease( int hslIndex, boolean increase,
 		List<String> params, Function<String, String> resolver )
@@ -984,15 +1069,15 @@ class UIDefaultsLoader
 		int amount = parsePercentage( params.get( 1 ) );
 		boolean relative = false;
 		boolean autoInverse = false;
-		boolean lazy = false;
 		boolean derived = false;
+		boolean lazy = false;
 
 		if( params.size() > 2 ) {
 			String options = params.get( 2 );
 			relative = options.contains( "relative" );
 			autoInverse = options.contains( "autoInverse" );
-			lazy = options.contains( "lazy" );
 			derived = options.contains( "derived" );
+			lazy = options.contains( "lazy" );
 
 			// use autoInverse by default for derived colors, except if noAutoInverse is set
 			if( derived && !options.contains( "noAutoInverse" ) )
@@ -1003,14 +1088,8 @@ class UIDefaultsLoader
 		ColorFunction function = new ColorFunctions.HSLIncreaseDecrease(
 			hslIndex, increase, amount, relative, autoInverse );
 
-		if( lazy ) {
-			return (LazyValue) t -> {
-				Object color = lazyUIManagerGet( colorStr );
-				return (color instanceof Color)
-					? new ColorUIResource( ColorFunctions.applyFunctions( (Color) color, function ) )
-					: null;
-			};
-		}
+		if( lazy )
+			return newLazyColorFunction( colorStr, function );
 
 		// parse base color, apply function and create derived color
 		return parseFunctionBaseColor( colorStr, function, derived, resolver );
@@ -1039,14 +1118,8 @@ class UIDefaultsLoader
 		// create function
 		ColorFunction function = new ColorFunctions.Fade( amount );
 
-		if( lazy ) {
-			return (LazyValue) t -> {
-				Object color = lazyUIManagerGet( colorStr );
-				return (color instanceof Color)
-					? new ColorUIResource( ColorFunctions.applyFunctions( (Color) color, function ) )
-					: null;
-			};
-		}
+		if( lazy )
+			return newLazyColorFunction( colorStr, function );
 
 		// parse base color, apply function and create derived color
 		return parseFunctionBaseColor( colorStr, function, derived, resolver );
@@ -1056,7 +1129,7 @@ class UIDefaultsLoader
 	 * Syntax: spin(color,angle[,options])
 	 *   - color: a color (e.g. #f00) or a color function
 	 *   - angle: number of degrees to rotate
-	 *   - options: [derived]
+	 *   - options: [derived] [lazy]
 	 */
 	private static Object parseColorSpin( List<String> params, Function<String, String> resolver )
 		throws IllegalArgumentException
@@ -1064,15 +1137,20 @@ class UIDefaultsLoader
 		String colorStr = params.get( 0 );
 		int amount = parseInteger( params.get( 1 ) );
 		boolean derived = false;
+		boolean lazy = false;
 
 		if( params.size() > 2 ) {
 			String options = params.get( 2 );
 			derived = options.contains( "derived" );
+			lazy = options.contains( "lazy" );
 		}
 
 		// create function
 		ColorFunction function = new ColorFunctions.HSLIncreaseDecrease( 0, true, amount, false, false );
 
+		if( lazy )
+			return newLazyColorFunction( colorStr, function );
+
 		// parse base color, apply function and create derived color
 		return parseFunctionBaseColor( colorStr, function, derived, resolver );
 	}
@@ -1084,7 +1162,7 @@ class UIDefaultsLoader
 	 *         changeAlpha(color,value[,options])
 	 *   - color: a color (e.g. #f00) or a color function
 	 *   - value: for hue: number of degrees; otherwise: percentage 0-100%
-	 *   - options: [derived]
+	 *   - options: [derived] [lazy]
 	 */
 	private static Object parseColorChange( int hslIndex,
 		List<String> params, Function<String, String> resolver )
@@ -1095,27 +1173,33 @@ class UIDefaultsLoader
 			? parseInteger( params.get( 1 ) )
 			: parsePercentage( params.get( 1 ) );
 		boolean derived = false;
+		boolean lazy = false;
 
 		if( params.size() > 2 ) {
 			String options = params.get( 2 );
 			derived = options.contains( "derived" );
+			lazy = options.contains( "lazy" );
 		}
 
 		// create function
 		ColorFunction function = new ColorFunctions.HSLChange( hslIndex, value );
 
+		if( lazy )
+			return newLazyColorFunction( colorStr, function );
+
 		// parse base color, apply function and create derived color
 		return parseFunctionBaseColor( colorStr, function, derived, resolver );
 	}
 
 	/**
-	 * Syntax: mix(color1,color2[,weight]) or
-	 *         tint(color[,weight]) or
-	 *         shade(color[,weight])
+	 * Syntax: mix(color1,color2[,weight][,options]) or
+	 *         tint(color[,weight][,options]) or
+	 *         shade(color[,weight][,options])
 	 *   - color1: a color (e.g. #f00) or a color function
 	 *   - color2: a color (e.g. #f00) or a color function
 	 *   - weight: the weight (in range 0-100%) to mix the two colors
 	 *             larger weight uses more of first color, smaller weight more of second color
+	 *   - options: [derived] [lazy]
 	 */
 	private static Object parseColorMix( String color1Str, List<String> params, Function<String, String> resolver )
 		throws IllegalArgumentException
@@ -1124,18 +1208,36 @@ class UIDefaultsLoader
 		if( color1Str == null )
 			color1Str = params.get( i++ );
 		String color2Str = params.get( i++ );
-		int weight = (params.size() > i) ? parsePercentage( params.get( i ) ) : 50;
+		int weight = 50;
+		boolean derived = false;
+		boolean lazy = false;
+
+		if( params.size() > i ) {
+			String weightStr = params.get( i );
+			if( !weightStr.isEmpty() && Character.isDigit( weightStr.charAt( 0 ) ) ) {
+				weight = parsePercentage( weightStr );
+				i++;
+			}
+		}
+		if( params.size() > i ) {
+			String options = params.get( i );
+			derived = options.contains( "derived" );
+			lazy = options.contains( "lazy" );
+		}
 
 		// parse second color
-		ColorUIResource color2 = (ColorUIResource) parseColorOrFunction( resolver.apply( color2Str ), resolver );
-		if( color2 == null )
+		ColorUIResource color1 = (ColorUIResource) parseColorOrFunction( resolver.apply( color1Str ), resolver );
+		if( color1 == null )
 			return null;
 
 		// create function
-		ColorFunction function = new ColorFunctions.Mix( color2, weight );
+		ColorFunction function = new ColorFunctions.Mix2( color1, weight );
+
+		if( lazy )
+			return newLazyColorFunction( color2Str, function );
 
 		// parse first color, apply function and create mixed color
-		return parseFunctionBaseColor( color1Str, function, false, resolver );
+		return parseFunctionBaseColor( color2Str, function, derived, resolver );
 	}
 
 	/**
@@ -1229,6 +1331,15 @@ class UIDefaultsLoader
 		return new ColorUIResource( newColor );
 	}
 
+	private static LazyValue newLazyColorFunction( String uiKey, ColorFunction function ) {
+		return (LazyValue) t -> {
+			Object color = lazyUIManagerGet( uiKey );
+			return (color instanceof Color)
+				? new ColorUIResource( ColorFunctions.applyFunctions( (Color) color, function ) )
+				: null;
+		};
+	}
+
 	/**
 	 * Syntax: [normal] [bold|+bold|-bold] [italic|+italic|-italic] [<size>|+<incr>|-<decr>|<percent>%] [family[, family]] [$baseFontKey]
 	 */
@@ -1314,17 +1425,17 @@ class UIDefaultsLoader
 						break;
 				}
 			}
-		} catch( IOException ex ) {
-			throw new IllegalArgumentException( ex );
+		} catch( RuntimeException | IOException ex ) {
+			throw new IllegalArgumentException(  "invalid font '" + value + "' (" + ex.getMessage() + ")" );
 		}
 
 		if( style != -1 && styleChange != 0 )
-			throw new IllegalArgumentException( "can not mix absolute style (e.g. 'bold') with derived style (e.g. '+italic') in '" + value + "'" );
+			throw new IllegalArgumentException( "invalid font '" + value + "': can not mix absolute style (e.g. 'bold') with derived style (e.g. '+italic')" );
 		if( styleChange != 0 ) {
 			if( (styleChange & Font.BOLD) != 0 && (styleChange & (Font.BOLD << 16)) != 0 )
-				throw new IllegalArgumentException( "can not use '+bold' and '-bold' in '" + value + "'" );
+				throw new IllegalArgumentException( "invalid font '" + value + "': can not use '+bold' and '-bold'" );
 			if( (styleChange & Font.ITALIC) != 0 && (styleChange & (Font.ITALIC << 16)) != 0 )
-				throw new IllegalArgumentException( "can not use '+italic' and '-italic' in '" + value + "'" );
+				throw new IllegalArgumentException( "invalid font '" + value + "': can not use '+italic' and '-italic'" );
 		}
 
 		font = new FlatLaf.ActiveFont( baseFontKey, families, style, styleChange, absoluteSize, relativeSize, scaleSize );
@@ -1464,7 +1575,7 @@ class UIDefaultsLoader
 			return (LazyValue) t -> {
 				return new GrayFilter( brightness, contrast, alpha );
 			};
-		} catch( NumberFormatException ex ) {
+		} catch( NumberFormatException | IndexOutOfBoundsException ex ) {
 			throw new IllegalArgumentException( "invalid gray filter '" + value + "'" );
 		}
 	}

flatlaf-core/src/main/java/com/formdev/flatlaf/icons/FlatAbstractIcon.java

@@ -16,7 +16,6 @@
 
 package com.formdev.flatlaf.icons;
 
-import static com.formdev.flatlaf.util.UIScale.*;
 import java.awt.Color;
 import java.awt.Component;
 import java.awt.Graphics;
@@ -29,7 +28,7 @@ import com.formdev.flatlaf.util.UIScale;
 /**
  * Base class for icons that scales width and height, creates and initializes
  * a scaled graphics context for icon painting.
- *
+ * <p>
  * Subclasses do not need to scale icon painting.
  *
  * @author Karl Tauber
@@ -37,10 +36,15 @@ import com.formdev.flatlaf.util.UIScale;
 public abstract class FlatAbstractIcon
 	implements Icon, UIResource
 {
+	/** Unscaled icon width. */
 	protected final int width;
+	/** Unscaled icon height. */
 	protected final int height;
 	protected Color color;
 
+	/** Additional icon scale factor. */
+	private float scale = 1;
+
 	public FlatAbstractIcon( int width, int height, Color color ) {
 		this.width = width;
 		this.height = height;
@@ -61,6 +65,9 @@ public abstract class FlatAbstractIcon
 
 			g2.translate( x, y );
 			UIScale.scaleGraphics( g2 );
+			float scale = getScale();
+			if( scale != 1 )
+				g2.scale( scale, scale );
 
 			if( color != null )
 				g2.setColor( color );
@@ -71,19 +78,71 @@ public abstract class FlatAbstractIcon
 		}
 	}
 
-	/** @since 3.5.2 */
+	/**
+	 * Paints icon background. Default implementation does nothing.
+	 * Can be overridden to paint specific icon background.
+	 * <p>
+	 * The bounds of the area to be filled are:
+	 * x, y, {@link #getIconWidth()}, {@link #getIconHeight()}.
+	 * <p>
+	 * In contrast to {@link #paintIcon(Component, Graphics2D)},
+	 * the graphics context {@code g} is not translated and not scaled.
+	 *
+	 * @since 3.5.2
+	 */
 	protected void paintBackground( Component c, Graphics2D g, int x, int y ) {
 	}
 
+	/**
+	 * Paints icon.
+	 * <p>
+	 * The graphics context is translated and scaled.
+	 * This means that icon x,y coordinates are {@code 0,0}
+	 * and it is not necessary to scale coordinates within this method.
+	 * <p>
+	 * The bounds to be used for icon painting are:
+	 * 0, 0, {@link #width}, {@link #height}.
+	 */
 	protected abstract void paintIcon( Component c, Graphics2D g );
 
+	/**
+	 * Returns the scaled icon width.
+	 */
 	@Override
 	public int getIconWidth() {
-		return scale( width );
+		return scale( UIScale.scale( width ) );
 	}
 
+	/**
+	 * Returns the scaled icon height.
+	 */
 	@Override
 	public int getIconHeight() {
-		return scale( height );
+		return scale( UIScale.scale( height ) );
+	}
+
+	/** @since 3.7 */
+	public float getScale() {
+		return scale;
+	}
+
+	/** @since 3.7 */
+	public void setScale( float scale ) {
+		this.scale = scale;
+	}
+
+	/**
+	 * Multiplies the given value by the icon scale factor {@link #getScale()} and rounds the result.
+	 * <p>
+	 * If you want scale a {@code float} or {@code double} value,
+	 * simply use: {@code myFloatValue * }{@link #getScale()}.
+	 * <p>
+	 * Do not use this method when painting icon in {@link #paintIcon(Component, Graphics2D)}.
+	 *
+	 * @since 3.7
+	 */
+	protected int scale( int size ) {
+		float scale = getScale();
+		return (scale == 1) ? size : Math.round( size * scale );
 	}
 }

flatlaf-core/src/main/java/com/formdev/flatlaf/icons/FlatCapsLockIcon.java

@@ -17,7 +17,6 @@
 package com.formdev.flatlaf.icons;
 
 import java.awt.BasicStroke;
-import java.awt.Color;
 import java.awt.Component;
 import java.awt.Graphics2D;
 import java.awt.RenderingHints;
@@ -26,7 +25,8 @@ import java.awt.geom.Path2D;
 import java.awt.geom.Rectangle2D;
 import java.awt.geom.RoundRectangle2D;
 import javax.swing.UIManager;
-import com.formdev.flatlaf.ui.FlatStylingSupport.UnknownStyleException;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableField;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableObject;
 import com.formdev.flatlaf.ui.FlatUIUtils;
 
 /**
@@ -36,8 +36,11 @@ import com.formdev.flatlaf.ui.FlatUIUtils;
  *
  * @author Karl Tauber
  */
+@StyleableField( cls=FlatAbstractIcon.class, key="capsLockIconScale", fieldName="scale" )
+@StyleableField( cls=FlatAbstractIcon.class, key="capsLockIconColor", fieldName="color" )
 public class FlatCapsLockIcon
 	extends FlatAbstractIcon
+	implements StyleableObject
 {
 	private Path2D path;
 
@@ -45,23 +48,6 @@ public class FlatCapsLockIcon
 		super( 16, 16, UIManager.getColor( "PasswordField.capsLockIconColor" ) );
 	}
 
-	/** @since 2 */
-	public Object applyStyleProperty( String key, Object value ) {
-		Object oldValue;
-		switch( key ) {
-			case "capsLockIconColor": oldValue = color; color = (Color) value; return oldValue;
-			default: throw new UnknownStyleException( key );
-		}
-	}
-
-	/** @since 2.5 */
-	public Object getStyleableValue( String key ) {
-		switch( key ) {
-			case "capsLockIconColor": return color;
-			default: return null;
-		}
-	}
-
 	@Override
 	protected void paintIcon( Component c, Graphics2D g ) {
 		/*

flatlaf-core/src/main/java/com/formdev/flatlaf/icons/FlatCheckBoxIcon.java

@@ -17,19 +17,20 @@
 package com.formdev.flatlaf.icons;
 
 import static com.formdev.flatlaf.FlatClientProperties.*;
+import static com.formdev.flatlaf.ui.FlatUIUtils.stateColor;
 import java.awt.BasicStroke;
 import java.awt.Color;
 import java.awt.Component;
 import java.awt.Graphics2D;
 import java.awt.geom.Path2D;
 import java.awt.geom.RoundRectangle2D;
-import java.util.Map;
 import javax.swing.AbstractButton;
 import javax.swing.JComponent;
 import javax.swing.UIManager;
 import com.formdev.flatlaf.ui.FlatButtonUI;
-import com.formdev.flatlaf.ui.FlatStylingSupport;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableField;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableObject;
 import com.formdev.flatlaf.ui.FlatUIUtils;
 
 /**
@@ -48,6 +49,8 @@ import com.formdev.flatlaf.ui.FlatUIUtils;
  * @uiDefault CheckBox.icon.borderWidth					int or float	optional; defaults to Component.borderWidth
  * @uiDefault CheckBox.icon.selectedBorderWidth			int or float	optional; defaults to CheckBox.icon.borderWidth
  * @uiDefault CheckBox.icon.disabledSelectedBorderWidth	int or float	optional; defaults to CheckBox.icon.selectedBorderWidth
+ * @uiDefault CheckBox.icon.indeterminateBorderWidth			int or float	optional; defaults to CheckBox.icon.selectedBorderWidth
+ * @uiDefault CheckBox.icon.disabledIndeterminateBorderWidth	int or float	optional; defaults to CheckBox.icon.disabledSelectedBorderWidth
  * @uiDefault CheckBox.arc								int
  *
  * @uiDefault CheckBox.icon.focusColor					Color	optional; defaults to Component.focusColor
@@ -56,35 +59,52 @@ import com.formdev.flatlaf.ui.FlatUIUtils;
  * @uiDefault CheckBox.icon.selectedBorderColor			Color
  * @uiDefault CheckBox.icon.selectedBackground			Color
  * @uiDefault CheckBox.icon.checkmarkColor				Color
+ * @uiDefault CheckBox.icon.indeterminateBorderColor	Color	optional; defaults to CheckBox.icon.selectedBorderColor
+ * @uiDefault CheckBox.icon.indeterminateBackground		Color	optional; defaults to CheckBox.icon.selectedBackground
+ * @uiDefault CheckBox.icon.indeterminateCheckmarkColor	Color	optional; defaults to CheckBox.icon.checkmarkColor
  *
- * @uiDefault CheckBox.icon.disabledBorderColor			Color
- * @uiDefault CheckBox.icon.disabledBackground			Color
- * @uiDefault CheckBox.icon.disabledSelectedBorderColor	Color	optional; CheckBox.icon.disabledBorderColor is used if not specified
- * @uiDefault CheckBox.icon.disabledSelectedBackground	Color	optional; CheckBox.icon.disabledBackground is used if not specified
- * @uiDefault CheckBox.icon.disabledCheckmarkColor		Color
+ * @uiDefault CheckBox.icon.disabledBorderColor					Color
+ * @uiDefault CheckBox.icon.disabledBackground					Color
+ * @uiDefault CheckBox.icon.disabledSelectedBorderColor			Color	optional; defaults to CheckBox.icon.disabledBorderColor
+ * @uiDefault CheckBox.icon.disabledSelectedBackground			Color	optional; defaults to CheckBox.icon.disabledBackground
+ * @uiDefault CheckBox.icon.disabledCheckmarkColor				Color
+ * @uiDefault CheckBox.icon.disabledIndeterminateBorderColor	Color	optional; defaults to CheckBox.icon.disabledSelectedBorderColor
+ * @uiDefault CheckBox.icon.disabledIndeterminateBackground		Color	optional; defaults to CheckBox.icon.disabledSelectedBackground
+ * @uiDefault CheckBox.icon.disabledIndeterminateCheckmarkColor	Color	optional; defaults to CheckBox.icon.disabledCheckmarkColor
  *
- * @uiDefault CheckBox.icon.focusedBorderColor			Color	optional
- * @uiDefault CheckBox.icon.focusedBackground			Color	optional
- * @uiDefault CheckBox.icon.focusedSelectedBorderColor	Color	optional; CheckBox.icon.focusedBorderColor is used if not specified
- * @uiDefault CheckBox.icon.focusedSelectedBackground	Color	optional; CheckBox.icon.focusedBackground is used if not specified
- * @uiDefault CheckBox.icon.focusedCheckmarkColor		Color	optional; CheckBox.icon.checkmarkColor is used if not specified
+ * @uiDefault CheckBox.icon.focusedBorderColor					Color	optional
+ * @uiDefault CheckBox.icon.focusedBackground					Color	optional
+ * @uiDefault CheckBox.icon.focusedSelectedBorderColor			Color	optional; defaults to CheckBox.icon.focusedBorderColor
+ * @uiDefault CheckBox.icon.focusedSelectedBackground			Color	optional; defaults to CheckBox.icon.focusedBackground
+ * @uiDefault CheckBox.icon.focusedCheckmarkColor				Color	optional; defaults to CheckBox.icon.checkmarkColor
+ * @uiDefault CheckBox.icon.focusedIndeterminateBorderColor		Color	optional; defaults to CheckBox.icon.focusedSelectedBorderColor
+ * @uiDefault CheckBox.icon.focusedIndeterminateBackground		Color	optional; defaults to CheckBox.icon.focusedSelectedBackground
+ * @uiDefault CheckBox.icon.focusedIndeterminateCheckmarkColor	Color	optional; defaults to CheckBox.icon.focusedCheckmarkColor
  *
- * @uiDefault CheckBox.icon.hoverBorderColor			Color	optional
- * @uiDefault CheckBox.icon.hoverBackground				Color	optional
- * @uiDefault CheckBox.icon.hoverSelectedBorderColor	Color	optional; CheckBox.icon.hoverBorderColor is used if not specified
- * @uiDefault CheckBox.icon.hoverSelectedBackground		Color	optional; CheckBox.icon.hoverBackground is used if not specified
- * @uiDefault CheckBox.icon.hoverCheckmarkColor			Color	optional; CheckBox.icon.checkmarkColor is used if not specified
+ * @uiDefault CheckBox.icon.hoverBorderColor					Color	optional
+ * @uiDefault CheckBox.icon.hoverBackground						Color	optional
+ * @uiDefault CheckBox.icon.hoverSelectedBorderColor			Color	optional; defaults to CheckBox.icon.hoverBorderColor
+ * @uiDefault CheckBox.icon.hoverSelectedBackground				Color	optional; defaults to CheckBox.icon.hoverBackground
+ * @uiDefault CheckBox.icon.hoverCheckmarkColor					Color	optional; defaults to CheckBox.icon.checkmarkColor
+ * @uiDefault CheckBox.icon.hoverIndeterminateBorderColor		Color	optional; defaults to CheckBox.icon.hoverSelectedBorderColor
+ * @uiDefault CheckBox.icon.hoverIndeterminateBackground		Color	optional; defaults to CheckBox.icon.hoverSelectedBackground
+ * @uiDefault CheckBox.icon.hoverIndeterminateCheckmarkColor	Color	optional; defaults to CheckBox.icon.hoverCheckmarkColor
  *
- * @uiDefault CheckBox.icon.pressedBorderColor			Color	optional
- * @uiDefault CheckBox.icon.pressedBackground			Color	optional
- * @uiDefault CheckBox.icon.pressedSelectedBorderColor	Color	optional; CheckBox.icon.pressedBorderColor is used if not specified
- * @uiDefault CheckBox.icon.pressedSelectedBackground	Color	optional; CheckBox.icon.pressedBackground is used if not specified
- * @uiDefault CheckBox.icon.pressedCheckmarkColor		Color	optional; CheckBox.icon.checkmarkColor is used if not specified
+ * @uiDefault CheckBox.icon.pressedBorderColor					Color	optional
+ * @uiDefault CheckBox.icon.pressedBackground					Color	optional
+ * @uiDefault CheckBox.icon.pressedSelectedBorderColor			Color	optional; defaults to CheckBox.icon.pressedBorderColor
+ * @uiDefault CheckBox.icon.pressedSelectedBackground			Color	optional; defaults to CheckBox.icon.pressedBackground
+ * @uiDefault CheckBox.icon.pressedCheckmarkColor				Color	optional; defaults to CheckBox.icon.checkmarkColor
+ * @uiDefault CheckBox.icon.pressedIndeterminateBorderColor		Color	optional; defaults to CheckBox.icon.pressedSelectedBorderColor
+ * @uiDefault CheckBox.icon.pressedIndeterminateBackground		Color	optional; defaults to CheckBox.icon.pressedSelectedBackground
+ * @uiDefault CheckBox.icon.pressedIndeterminateCheckmarkColor	Color	optional; defaults to CheckBox.icon.pressedCheckmarkColor
  *
  * @author Karl Tauber
  */
+@StyleableField( cls=FlatAbstractIcon.class, key="scale" )
 public class FlatCheckBoxIcon
 	extends FlatAbstractIcon
+	implements StyleableObject
 {
 	protected final String style = UIManager.getString( getPropertyPrefix() + "icon.style" );
 	@Styleable protected float focusWidth = getUIFloat( "CheckBox.icon.focusWidth", UIManager.getInt( "Component.focusWidth" ), style );
@@ -92,6 +112,8 @@ public class FlatCheckBoxIcon
 	/** @since 2 */ @Styleable protected float borderWidth = getUIFloat( "CheckBox.icon.borderWidth", FlatUIUtils.getUIFloat( "Component.borderWidth", 1 ), style );
 	/** @since 2 */ @Styleable protected float selectedBorderWidth = getUIFloat( "CheckBox.icon.selectedBorderWidth", Float.MIN_VALUE, style );
 	/** @since 2 */ @Styleable protected float disabledSelectedBorderWidth = getUIFloat( "CheckBox.icon.disabledSelectedBorderWidth", Float.MIN_VALUE, style );
+	/** @since 3.6 */ @Styleable protected float indeterminateBorderWidth = getUIFloat( "CheckBox.icon.indeterminateBorderWidth", Float.MIN_VALUE, style );
+	/** @since 3.6 */ @Styleable protected float disabledIndeterminateBorderWidth = getUIFloat( "CheckBox.icon.disabledIndeterminateBorderWidth", Float.MIN_VALUE, style );
 	@Styleable protected int arc = FlatUIUtils.getUIInt( "CheckBox.arc", 2 );
 
 	// enabled
@@ -100,6 +122,9 @@ public class FlatCheckBoxIcon
 	@Styleable protected Color selectedBorderColor = getUIColor( "CheckBox.icon.selectedBorderColor", style );
 	@Styleable protected Color selectedBackground = getUIColor( "CheckBox.icon.selectedBackground", style );
 	@Styleable protected Color checkmarkColor = getUIColor( "CheckBox.icon.checkmarkColor", style );
+	/** @since 3.6 */ @Styleable protected Color indeterminateBorderColor = getUIColor( "CheckBox.icon.indeterminateBorderColor", style );
+	/** @since 3.6 */ @Styleable protected Color indeterminateBackground = getUIColor( "CheckBox.icon.indeterminateBackground", style );
+	/** @since 3.6 */ @Styleable protected Color indeterminateCheckmarkColor = getUIColor( "CheckBox.icon.indeterminateCheckmarkColor", style );
 
 	// disabled
 	@Styleable protected Color disabledBorderColor = getUIColor( "CheckBox.icon.disabledBorderColor", style );
@@ -107,6 +132,9 @@ public class FlatCheckBoxIcon
 	/** @since 2 */ @Styleable protected Color disabledSelectedBorderColor = getUIColor( "CheckBox.icon.disabledSelectedBorderColor", style );
 	/** @since 2 */ @Styleable protected Color disabledSelectedBackground = getUIColor( "CheckBox.icon.disabledSelectedBackground", style );
 	@Styleable protected Color disabledCheckmarkColor = getUIColor( "CheckBox.icon.disabledCheckmarkColor", style );
+	/** @since 3.6 */ @Styleable protected Color disabledIndeterminateBorderColor = getUIColor( "CheckBox.icon.disabledIndeterminateBorderColor", style );
+	/** @since 3.6 */ @Styleable protected Color disabledIndeterminateBackground = getUIColor( "CheckBox.icon.disabledIndeterminateBackground", style );
+	/** @since 3.6 */ @Styleable protected Color disabledIndeterminateCheckmarkColor = getUIColor( "CheckBox.icon.disabledIndeterminateCheckmarkColor", style );
 
 	// focused
 	@Styleable protected Color focusedBorderColor = getUIColor( "CheckBox.icon.focusedBorderColor", style );
@@ -114,6 +142,9 @@ public class FlatCheckBoxIcon
 	/** @since 2 */ @Styleable protected Color focusedSelectedBorderColor = getUIColor( "CheckBox.icon.focusedSelectedBorderColor", style );
 	/** @since 2 */ @Styleable protected Color focusedSelectedBackground = getUIColor( "CheckBox.icon.focusedSelectedBackground", style );
 	/** @since 2 */ @Styleable protected Color focusedCheckmarkColor = getUIColor( "CheckBox.icon.focusedCheckmarkColor", style );
+	/** @since 3.6 */ @Styleable protected Color focusedIndeterminateBorderColor = getUIColor( "CheckBox.icon.focusedIndeterminateBorderColor", style );
+	/** @since 3.6 */ @Styleable protected Color focusedIndeterminateBackground = getUIColor( "CheckBox.icon.focusedIndeterminateBackground", style );
+	/** @since 3.6 */ @Styleable protected Color focusedIndeterminateCheckmarkColor = getUIColor( "CheckBox.icon.focusedIndeterminateCheckmarkColor", style );
 
 	// hover
 	@Styleable protected Color hoverBorderColor = getUIColor( "CheckBox.icon.hoverBorderColor", style );
@@ -121,6 +152,9 @@ public class FlatCheckBoxIcon
 	/** @since 2 */ @Styleable protected Color hoverSelectedBorderColor = getUIColor( "CheckBox.icon.hoverSelectedBorderColor", style );
 	/** @since 2 */ @Styleable protected Color hoverSelectedBackground = getUIColor( "CheckBox.icon.hoverSelectedBackground", style );
 	/** @since 2 */ @Styleable protected Color hoverCheckmarkColor = getUIColor( "CheckBox.icon.hoverCheckmarkColor", style );
+	/** @since 3.6 */ @Styleable protected Color hoverIndeterminateBorderColor = getUIColor( "CheckBox.icon.hoverIndeterminateBorderColor", style );
+	/** @since 3.6 */ @Styleable protected Color hoverIndeterminateBackground = getUIColor( "CheckBox.icon.hoverIndeterminateBackground", style );
+	/** @since 3.6 */ @Styleable protected Color hoverIndeterminateCheckmarkColor = getUIColor( "CheckBox.icon.hoverIndeterminateCheckmarkColor", style );
 
 	// pressed
 	/** @since 2 */ @Styleable protected Color pressedBorderColor = getUIColor( "CheckBox.icon.pressedBorderColor", style );
@@ -128,6 +162,9 @@ public class FlatCheckBoxIcon
 	/** @since 2 */ @Styleable protected Color pressedSelectedBorderColor = getUIColor( "CheckBox.icon.pressedSelectedBorderColor", style );
 	/** @since 2 */ @Styleable protected Color pressedSelectedBackground = getUIColor( "CheckBox.icon.pressedSelectedBackground", style );
 	/** @since 2 */ @Styleable protected Color pressedCheckmarkColor = getUIColor( "CheckBox.icon.pressedCheckmarkColor", style );
+	/** @since 3.6 */ @Styleable protected Color pressedIndeterminateBorderColor = getUIColor( "CheckBox.icon.pressedIndeterminateBorderColor", style );
+	/** @since 3.6 */ @Styleable protected Color pressedIndeterminateBackground = getUIColor( "CheckBox.icon.pressedIndeterminateBackground", style );
+	/** @since 3.6 */ @Styleable protected Color pressedIndeterminateCheckmarkColor = getUIColor( "CheckBox.icon.pressedIndeterminateCheckmarkColor", style );
 
 	protected String getPropertyPrefix() {
 		return "CheckBox.";
@@ -162,31 +199,22 @@ public class FlatCheckBoxIcon
 		super( ICON_SIZE, ICON_SIZE, null );
 	}
 
-	/** @since 2 */
-	public Object applyStyleProperty( String key, Object value ) {
-		return FlatStylingSupport.applyToAnnotatedObject( this, key, value );
-	}
-
-	/** @since 2 */
-	public Map<String, Class<?>> getStyleableInfos() {
-		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
-	}
-
-	/** @since 2.5 */
-	public Object getStyleableValue( String key ) {
-		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
-	}
-
 	@Override
 	protected void paintIcon( Component c, Graphics2D g ) {
 		boolean indeterminate = isIndeterminate( c );
 		boolean selected = indeterminate || isSelected( c );
 		boolean isFocused = FlatUIUtils.isPermanentFocusOwner( c );
-		float bw = selected
-			? (disabledSelectedBorderWidth != Float.MIN_VALUE && !c.isEnabled()
-				? disabledSelectedBorderWidth
-				: (selectedBorderWidth != Float.MIN_VALUE ? selectedBorderWidth : borderWidth))
-			: borderWidth;
+		float bw = Float.MIN_VALUE;
+		if( !c.isEnabled() ) {
+			bw = (indeterminate && disabledIndeterminateBorderWidth != Float.MIN_VALUE)
+				? disabledIndeterminateBorderWidth
+				: (selected ? disabledSelectedBorderWidth : selectedBorderWidth);
+		}
+		if( bw == Float.MIN_VALUE ) {
+			bw = (indeterminate && indeterminateBorderWidth != Float.MIN_VALUE)
+				? indeterminateBorderWidth
+				: ((selected && selectedBorderWidth != Float.MIN_VALUE) ? selectedBorderWidth : borderWidth);
+		}
 
 		// paint focused border
 		if( isFocused && focusWidth > 0 && FlatButtonUI.isFocusPainted( c ) ) {
@@ -195,15 +223,15 @@ public class FlatCheckBoxIcon
 		}
 
 		// paint border
-		g.setColor( getBorderColor( c, selected ) );
+		g.setColor( getBorderColor( c, selected, indeterminate ) );
 		paintBorder( c, g, bw );
 
 		// paint background
-		Color bg = FlatUIUtils.deriveColor( getBackground( c, selected ),
-			selected ? selectedBackground : background );
+		Color baseBg = stateColor( indeterminate, indeterminateBackground, selected, selectedBackground, background );
+		Color bg = FlatUIUtils.deriveColor( getBackground( c, selected, indeterminate ), baseBg );
 		if( bg.getAlpha() < 255 ) {
 			// fill background with default color before filling with non-opaque background
-			g.setColor( selected ? selectedBackground : background );
+			g.setColor( baseBg );
 			paintBackground( c, g, bw );
 		}
 		g.setColor( bg );
@@ -211,7 +239,7 @@ public class FlatCheckBoxIcon
 
 		// paint checkmark
 		if( selected ) {
-			g.setColor( getCheckmarkColor( c ) );
+			g.setColor( getCheckmarkColor( c, indeterminate ) );
 			if( indeterminate )
 				paintIndeterminate( c, g );
 			else
@@ -265,37 +293,40 @@ public class FlatCheckBoxIcon
 
 	/** @since 2 */
 	public float getFocusWidth() {
-		return focusWidth;
+		return focusWidth * getScale();
 	}
 
 	protected Color getFocusColor( Component c ) {
 		return focusColor;
 	}
 
-	protected Color getBorderColor( Component c, boolean selected ) {
+	/** @since 3.6 */
+	protected Color getBorderColor( Component c, boolean selected, boolean indeterminate ) {
 		return FlatButtonUI.buttonStateColor( c,
-			selected ? selectedBorderColor : borderColor,
-			(selected && disabledSelectedBorderColor != null) ? disabledSelectedBorderColor : disabledBorderColor,
-			(selected && focusedSelectedBorderColor != null) ? focusedSelectedBorderColor : focusedBorderColor,
-			(selected && hoverSelectedBorderColor != null) ? hoverSelectedBorderColor : hoverBorderColor,
-			(selected && pressedSelectedBorderColor != null) ? pressedSelectedBorderColor : pressedBorderColor );
+			stateColor( indeterminate, indeterminateBorderColor,         selected, selectedBorderColor,         borderColor ),
+			stateColor( indeterminate, disabledIndeterminateBorderColor, selected, disabledSelectedBorderColor, disabledBorderColor ),
+			stateColor( indeterminate, focusedIndeterminateBorderColor,  selected, focusedSelectedBorderColor,  focusedBorderColor ),
+			stateColor( indeterminate, hoverIndeterminateBorderColor,    selected, hoverSelectedBorderColor,    hoverBorderColor ),
+			stateColor( indeterminate, pressedIndeterminateBorderColor,  selected, pressedSelectedBorderColor,  pressedBorderColor ) );
 	}
 
-	protected Color getBackground( Component c, boolean selected ) {
+	/** @since 3.6 */
+	protected Color getBackground( Component c, boolean selected, boolean indeterminate ) {
 		return FlatButtonUI.buttonStateColor( c,
-			selected ? selectedBackground : background,
-			(selected && disabledSelectedBackground != null) ? disabledSelectedBackground : disabledBackground,
-			(selected && focusedSelectedBackground != null) ? focusedSelectedBackground : focusedBackground,
-			(selected && hoverSelectedBackground != null) ? hoverSelectedBackground : hoverBackground,
-			(selected && pressedSelectedBackground != null) ? pressedSelectedBackground : pressedBackground );
+			stateColor( indeterminate, indeterminateBackground,          selected, selectedBackground,          background ),
+			stateColor( indeterminate, disabledIndeterminateBackground,  selected, disabledSelectedBackground,  disabledBackground ),
+			stateColor( indeterminate, focusedIndeterminateBackground,   selected, focusedSelectedBackground,   focusedBackground ),
+			stateColor( indeterminate, hoverIndeterminateBackground,     selected, hoverSelectedBackground,     hoverBackground ),
+			stateColor( indeterminate, pressedIndeterminateBackground,   selected, pressedSelectedBackground,   pressedBackground ) );
 	}
 
-	protected Color getCheckmarkColor( Component c ) {
+	/** @since 3.6 */
+	protected Color getCheckmarkColor( Component c, boolean indeterminate ) {
 		return FlatButtonUI.buttonStateColor( c,
-			checkmarkColor,
-			disabledCheckmarkColor,
-			focusedCheckmarkColor,
-			hoverCheckmarkColor,
-			pressedCheckmarkColor );
+			stateColor( indeterminate, indeterminateCheckmarkColor, checkmarkColor ),
+			stateColor( indeterminate, disabledIndeterminateCheckmarkColor, disabledCheckmarkColor ),
+			stateColor( indeterminate, focusedIndeterminateCheckmarkColor, focusedCheckmarkColor ),
+			stateColor( indeterminate, hoverIndeterminateCheckmarkColor, hoverCheckmarkColor ),
+			stateColor( indeterminate, pressedIndeterminateCheckmarkColor, pressedCheckmarkColor ) );
 	}
 }

flatlaf-core/src/main/java/com/formdev/flatlaf/icons/FlatCheckBoxMenuItemIcon.java

@@ -21,12 +21,12 @@ import java.awt.Color;
 import java.awt.Component;
 import java.awt.Graphics2D;
 import java.awt.geom.Path2D;
-import java.util.Map;
 import javax.swing.AbstractButton;
 import javax.swing.JMenuItem;
 import javax.swing.UIManager;
-import com.formdev.flatlaf.ui.FlatStylingSupport;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableField;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableObject;
 
 /**
  * Icon for {@link javax.swing.JCheckBoxMenuItem}.
@@ -38,8 +38,10 @@ import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
  *
  * @author Karl Tauber
  */
+@StyleableField( cls=FlatAbstractIcon.class, key="scale" )
 public class FlatCheckBoxMenuItemIcon
 	extends FlatAbstractIcon
+	implements StyleableObject
 {
 	@Styleable protected Color checkmarkColor = UIManager.getColor( "CheckBoxMenuItem.icon.checkmarkColor" );
 	@Styleable protected Color disabledCheckmarkColor = UIManager.getColor( "CheckBoxMenuItem.icon.disabledCheckmarkColor" );
@@ -49,21 +51,6 @@ public class FlatCheckBoxMenuItemIcon
 		super( 15, 15, null );
 	}
 
-	/** @since 2 */
-	public Object applyStyleProperty( String key, Object value ) {
-		return FlatStylingSupport.applyToAnnotatedObject( this, key, value );
-	}
-
-	/** @since 2 */
-	public Map<String, Class<?>> getStyleableInfos() {
-		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
-	}
-
-	/** @since 2.5 */
-	public Object getStyleableValue( String key ) {
-		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
-	}
-
 	@Override
 	protected void paintIcon( Component c, Graphics2D g2 ) {
 		boolean selected = (c instanceof AbstractButton) && ((AbstractButton)c).isSelected();

flatlaf-core/src/main/java/com/formdev/flatlaf/icons/FlatClearIcon.java

@@ -21,12 +21,12 @@ import java.awt.Component;
 import java.awt.Graphics2D;
 import java.awt.geom.Ellipse2D;
 import java.awt.geom.Path2D;
-import java.util.Map;
 import javax.swing.AbstractButton;
 import javax.swing.ButtonModel;
 import javax.swing.UIManager;
-import com.formdev.flatlaf.ui.FlatStylingSupport;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableField;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableObject;
 import com.formdev.flatlaf.ui.FlatUIUtils;
 
 /**
@@ -39,8 +39,10 @@ import com.formdev.flatlaf.ui.FlatUIUtils;
  * @author Karl Tauber
  * @since 1.5
  */
+@StyleableField( cls=FlatAbstractIcon.class, key="clearIconScale", fieldName="scale" )
 public class FlatClearIcon
 	extends FlatAbstractIcon
+	implements StyleableObject
 {
 	@Styleable protected Color clearIconColor = UIManager.getColor( "SearchField.clearIconColor" );
 	@Styleable protected Color clearIconHoverColor = UIManager.getColor( "SearchField.clearIconHoverColor" );
@@ -58,21 +60,6 @@ public class FlatClearIcon
 		this.ignoreButtonState = ignoreButtonState;
 	}
 
-	/** @since 2 */
-	public Object applyStyleProperty( String key, Object value ) {
-		return FlatStylingSupport.applyToAnnotatedObject( this, key, value );
-	}
-
-	/** @since 2 */
-	public Map<String, Class<?>> getStyleableInfos() {
-		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
-	}
-
-	/** @since 2.5 */
-	public Object getStyleableValue( String key ) {
-		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
-	}
-
 	@Override
 	protected void paintIcon( Component c, Graphics2D g ) {
 		if( !ignoreButtonState && c instanceof AbstractButton ) {

flatlaf-core/src/main/java/com/formdev/flatlaf/icons/FlatHelpButtonIcon.java

@@ -16,7 +16,6 @@
 
 package com.formdev.flatlaf.icons;
 
-import static com.formdev.flatlaf.util.UIScale.*;
 import java.awt.BasicStroke;
 import java.awt.Color;
 import java.awt.Component;
@@ -24,11 +23,12 @@ import java.awt.Graphics2D;
 import java.awt.RenderingHints;
 import java.awt.geom.Ellipse2D;
 import java.awt.geom.Path2D;
-import java.util.Map;
 import javax.swing.UIManager;
 import com.formdev.flatlaf.ui.FlatButtonUI;
-import com.formdev.flatlaf.ui.FlatStylingSupport;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableField;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableObject;
+import com.formdev.flatlaf.util.UIScale;
 import com.formdev.flatlaf.ui.FlatUIUtils;
 
 /**
@@ -52,8 +52,10 @@ import com.formdev.flatlaf.ui.FlatUIUtils;
  *
  * @author Karl Tauber
  */
+@StyleableField( cls=FlatAbstractIcon.class, key="scale" )
 public class FlatHelpButtonIcon
 	extends FlatAbstractIcon
+	implements StyleableObject
 {
 	@Styleable protected int focusWidth = UIManager.getInt( "Component.focusWidth" );
 	@Styleable protected Color focusColor = UIManager.getColor( "Component.focusColor" );
@@ -76,21 +78,6 @@ public class FlatHelpButtonIcon
 		super( 0, 0, null );
 	}
 
-	/** @since 2 */
-	public Object applyStyleProperty( String key, Object value ) {
-		return FlatStylingSupport.applyToAnnotatedObject( this, key, value );
-	}
-
-	/** @since 2 */
-	public Map<String, Class<?>> getStyleableInfos() {
-		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
-	}
-
-	/** @since 2.5 */
-	public Object getStyleableValue( String key ) {
-		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
-	}
-
 	@Override
 	protected void paintIcon( Component c, Graphics2D g2 ) {
 		/*
@@ -167,12 +154,12 @@ public class FlatHelpButtonIcon
 
 	@Override
 	public int getIconWidth() {
-		return scale( iconSize() );
+		return scale( UIScale.scale( iconSize() ) );
 	}
 
 	@Override
 	public int getIconHeight() {
-		return scale( iconSize() );
+		return scale( UIScale.scale( iconSize() ) );
 	}
 
 	private int iconSize() {

flatlaf-core/src/main/java/com/formdev/flatlaf/icons/FlatMenuArrowIcon.java

@@ -21,12 +21,12 @@ import java.awt.Color;
 import java.awt.Component;
 import java.awt.Graphics2D;
 import java.awt.geom.Path2D;
-import java.util.Map;
 import javax.swing.JMenu;
 import javax.swing.UIManager;
-import com.formdev.flatlaf.ui.FlatStylingSupport;
 import com.formdev.flatlaf.ui.FlatUIUtils;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableField;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableObject;
 
 /**
  * "arrow" icon for {@link javax.swing.JMenu}.
@@ -39,8 +39,10 @@ import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
  *
  * @author Karl Tauber
  */
+@StyleableField( cls=FlatAbstractIcon.class, key="scale" )
 public class FlatMenuArrowIcon
 	extends FlatAbstractIcon
+	implements StyleableObject
 {
 	@Styleable protected String arrowType = UIManager.getString( "Component.arrowType" );
 	@Styleable protected Color arrowColor = UIManager.getColor( "Menu.icon.arrowColor" );
@@ -51,21 +53,6 @@ public class FlatMenuArrowIcon
 		super( 6, 10, null );
 	}
 
-	/** @since 2 */
-	public Object applyStyleProperty( String key, Object value ) {
-		return FlatStylingSupport.applyToAnnotatedObject( this, key, value );
-	}
-
-	/** @since 2 */
-	public Map<String, Class<?>> getStyleableInfos() {
-		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
-	}
-
-	/** @since 2.5 */
-	public Object getStyleableValue( String key ) {
-		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
-	}
-
 	@Override
 	protected void paintIcon( Component c, Graphics2D g ) {
 		if( c != null && !c.getComponentOrientation().isLeftToRight() )

flatlaf-core/src/main/java/com/formdev/flatlaf/icons/FlatSearchIcon.java

@@ -21,11 +21,11 @@ import java.awt.Component;
 import java.awt.Graphics2D;
 import java.awt.geom.Area;
 import java.awt.geom.Ellipse2D;
-import java.util.Map;
 import javax.swing.UIManager;
 import com.formdev.flatlaf.ui.FlatButtonUI;
-import com.formdev.flatlaf.ui.FlatStylingSupport;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableField;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableObject;
 import com.formdev.flatlaf.ui.FlatUIUtils;
 
 /**
@@ -38,8 +38,10 @@ import com.formdev.flatlaf.ui.FlatUIUtils;
  * @author Karl Tauber
  * @since 1.5
  */
+@StyleableField( cls=FlatAbstractIcon.class, key="searchIconScale", fieldName="scale" )
 public class FlatSearchIcon
 	extends FlatAbstractIcon
+	implements StyleableObject
 {
 	@Styleable protected Color searchIconColor = UIManager.getColor( "SearchField.searchIconColor" );
 	@Styleable protected Color searchIconHoverColor = UIManager.getColor( "SearchField.searchIconHoverColor" );
@@ -58,21 +60,6 @@ public class FlatSearchIcon
 		this.ignoreButtonState = ignoreButtonState;
 	}
 
-	/** @since 2 */
-	public Object applyStyleProperty( String key, Object value ) {
-		return FlatStylingSupport.applyToAnnotatedObject( this, key, value );
-	}
-
-	/** @since 2 */
-	public Map<String, Class<?>> getStyleableInfos() {
-		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
-	}
-
-	/** @since 2.5 */
-	public Object getStyleableValue( String key ) {
-		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
-	}
-
 	@Override
 	protected void paintIcon( Component c, Graphics2D g ) {
 		/*

flatlaf-core/src/main/java/com/formdev/flatlaf/icons/FlatTabbedPaneCloseIcon.java

@@ -22,11 +22,11 @@ import java.awt.Component;
 import java.awt.Dimension;
 import java.awt.Graphics2D;
 import java.awt.geom.Path2D;
-import java.util.Map;
 import javax.swing.UIManager;
 import com.formdev.flatlaf.ui.FlatButtonUI;
-import com.formdev.flatlaf.ui.FlatStylingSupport;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableField;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableObject;
 import com.formdev.flatlaf.ui.FlatUIUtils;
 
 /**
@@ -46,8 +46,10 @@ import com.formdev.flatlaf.ui.FlatUIUtils;
  *
  * @author Karl Tauber
  */
+@StyleableField( cls=FlatAbstractIcon.class, key="closeScale", fieldName="scale" )
 public class FlatTabbedPaneCloseIcon
 	extends FlatAbstractIcon
+	implements StyleableObject
 {
 	@Styleable protected Dimension closeSize = UIManager.getDimension( "TabbedPane.closeSize" );
 	@Styleable protected int closeArc = UIManager.getInt( "TabbedPane.closeArc" );
@@ -65,21 +67,6 @@ public class FlatTabbedPaneCloseIcon
 		super( 16, 16, null );
 	}
 
-	/** @since 2 */
-	public Object applyStyleProperty( String key, Object value ) {
-		return FlatStylingSupport.applyToAnnotatedObject( this, key, value );
-	}
-
-	/** @since 2 */
-	public Map<String, Class<?>> getStyleableInfos() {
-		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
-	}
-
-	/** @since 2.5 */
-	public Object getStyleableValue( String key ) {
-		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
-	}
-
 	@Override
 	protected void paintIcon( Component c, Graphics2D g ) {
 		// paint background

flatlaf-core/src/main/java/com/formdev/flatlaf/icons/FlatWindowAbstractIcon.java

@@ -18,44 +18,95 @@ package com.formdev.flatlaf.icons;
 
 import java.awt.Color;
 import java.awt.Component;
+import java.awt.Container;
 import java.awt.Dimension;
 import java.awt.Graphics2D;
-import java.awt.RenderingHints;
+import java.awt.Insets;
+import java.awt.Window;
+import javax.swing.SwingUtilities;
 import com.formdev.flatlaf.ui.FlatButtonUI;
+import com.formdev.flatlaf.ui.FlatTitlePane;
 import com.formdev.flatlaf.ui.FlatUIUtils;
+import com.formdev.flatlaf.util.DerivedColor;
 import com.formdev.flatlaf.util.HiDPIUtils;
+import com.formdev.flatlaf.util.UIScale;
 
 /**
  * Base class for window icons.
  *
  * @uiDefault TitlePane.buttonSize						Dimension
+ * @uiDefault TitlePane.buttonInsets					Insets	optional
+ * @uiDefault TitlePane.buttonArc						int		optional
  * @uiDefault TitlePane.buttonSymbolHeight				int
- * @uiDefault TitlePane.buttonHoverBackground			Color
- * @uiDefault TitlePane.buttonPressedBackground			Color
+ * @uiDefault TitlePane.buttonBackground				Color	optional
+ * @uiDefault TitlePane.buttonForeground				Color	optional
+ * @uiDefault TitlePane.buttonInactiveBackground		Color	optional
+ * @uiDefault TitlePane.buttonInactiveForeground		Color	optional
+ * @uiDefault TitlePane.buttonHoverBackground			Color	optional
+ * @uiDefault TitlePane.buttonHoverForeground			Color	optional
+ * @uiDefault TitlePane.buttonPressedBackground			Color	optional
+ * @uiDefault TitlePane.buttonPressedForeground			Color	optional
  *
  * @author Karl Tauber
  */
 public abstract class FlatWindowAbstractIcon
 	extends FlatAbstractIcon
 {
-	private final int symbolHeight;
-	private final Color hoverBackground;
-	private final Color pressedBackground;
+	/** @since 3.6 */ protected final Insets insets;
+	/** @since 3.6 */ protected final int arc;
+	/** @since 3.6 */ protected final int symbolHeight;
+
+	/** @since 3.6 */ protected final Color background;
+	/** @since 3.6 */ protected final Color foreground;
+	/** @since 3.6 */ protected final Color inactiveBackground;
+	/** @since 3.6 */ protected final Color inactiveForeground;
+	protected final Color hoverBackground;
+	/** @since 3.6 */ protected final Color hoverForeground;
+	protected final Color pressedBackground;
+	/** @since 3.6 */ protected final Color pressedForeground;
 
 	/** @since 3.2 */
 	protected FlatWindowAbstractIcon( String windowStyle ) {
-		this( FlatUIUtils.getSubUIDimension( "TitlePane.buttonSize", windowStyle ),
-			FlatUIUtils.getSubUIInt( "TitlePane.buttonSymbolHeight", windowStyle, 10 ),
-			FlatUIUtils.getSubUIColor( "TitlePane.buttonHoverBackground", windowStyle ),
-			FlatUIUtils.getSubUIColor( "TitlePane.buttonPressedBackground", windowStyle ) );
+		this( windowStyle, null, null, null, null, null, null, null, null );
 	}
 
-	/** @since 3.2 */
-	protected FlatWindowAbstractIcon( Dimension size, int symbolHeight, Color hoverBackground, Color pressedBackground ) {
+	/** @since 3.6 */
+	protected FlatWindowAbstractIcon( String windowStyle,
+		Color background, Color foreground, Color inactiveBackground, Color inactiveForeground,
+		Color hoverBackground, Color hoverForeground, Color pressedBackground, Color pressedForeground )
+	{
+		this( FlatUIUtils.getSubUIDimension( "TitlePane.buttonSize", windowStyle ),
+			FlatUIUtils.getSubUIInsets( "TitlePane.buttonInsets", windowStyle ),
+			FlatUIUtils.getSubUIInt( "TitlePane.buttonArc", windowStyle, 0 ),
+			FlatUIUtils.getSubUIInt( "TitlePane.buttonSymbolHeight", windowStyle, 10 ),
+			(background != null) ? background : FlatUIUtils.getSubUIColor( "TitlePane.buttonBackground", windowStyle ),
+			(foreground != null) ? foreground : FlatUIUtils.getSubUIColor( "TitlePane.buttonForeground", windowStyle ),
+			(inactiveBackground != null) ? inactiveBackground : FlatUIUtils.getSubUIColor( "TitlePane.buttonInactiveBackground", windowStyle ),
+			(inactiveForeground != null) ? inactiveForeground : FlatUIUtils.getSubUIColor( "TitlePane.buttonInactiveForeground", windowStyle ),
+			(hoverBackground != null) ? hoverBackground : FlatUIUtils.getSubUIColor( "TitlePane.buttonHoverBackground", windowStyle ),
+			(hoverForeground != null) ? hoverForeground : FlatUIUtils.getSubUIColor( "TitlePane.buttonHoverForeground", windowStyle ),
+			(pressedBackground != null) ? pressedBackground : FlatUIUtils.getSubUIColor( "TitlePane.buttonPressedBackground", windowStyle ),
+			(pressedForeground != null) ? pressedForeground : FlatUIUtils.getSubUIColor( "TitlePane.buttonPressedForeground", windowStyle ) );
+	}
+
+	/** @since 3.6 */
+	protected FlatWindowAbstractIcon( Dimension size, Insets insets, int arc, int symbolHeight,
+		Color background, Color foreground, Color inactiveBackground, Color inactiveForeground,
+		Color hoverBackground, Color hoverForeground, Color pressedBackground, Color pressedForeground )
+	{
 		super( size.width, size.height, null );
+		this.insets = (insets != null) ? insets : new Insets( 0, 0, 0, 0 );
+		this.arc = arc;
 		this.symbolHeight = symbolHeight;
+
+		this.background = background;
+		this.foreground = foreground;
+		this.inactiveBackground = inactiveBackground;
+		this.inactiveForeground = inactiveForeground;
 		this.hoverBackground = hoverBackground;
+		this.hoverForeground = hoverForeground;
 		this.pressedBackground = pressedBackground;
+		this.pressedForeground = pressedForeground;
 	}
 
 	@Override
@@ -69,26 +120,39 @@ public abstract class FlatWindowAbstractIcon
 	/** @since 3.5.2 */
 	@Override
 	protected void paintBackground( Component c, Graphics2D g, int x, int y ) {
-		Color background = FlatButtonUI.buttonStateColor( c, null, null, null, hoverBackground, pressedBackground );
+		Color bg = null;
+		if( background != null || inactiveBackground != null ) {
+			Window window = SwingUtilities.windowForComponent( c );
+			bg = (window == null || window.isActive()) ? background : inactiveBackground;
+		}
+
+		Color background = FlatButtonUI.buttonStateColor( c, bg, null, null, hoverBackground, pressedBackground );
 		if( background != null ) {
-			// disable antialiasing for background rectangle painting to avoid blurry edges when scaled (e.g. at 125% or 175%)
-			Object oldHint = g.getRenderingHint( RenderingHints.KEY_ANTIALIASING );
-			g.setRenderingHint( RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF );
+			Insets insets = UIScale.scale( this.insets );
+			float arc = UIScale.scale( (float) this.arc );
 
-			// fill background of whole component
-			g.setColor( FlatUIUtils.deriveColor( background, c.getBackground() ) );
-			g.fillRect( 0, 0, c.getWidth(), c.getHeight() );
+			// derive color from title pane background
+			if( background instanceof DerivedColor ) {
+				Container titlePane = SwingUtilities.getAncestorOfClass( FlatTitlePane.class, c );
+				Component baseComp = (titlePane != null) ? titlePane : c;
+				background = FlatUIUtils.deriveColor( background, baseComp.getBackground() );
+			}
 
-			g.setRenderingHint( RenderingHints.KEY_ANTIALIASING, oldHint );
+			g.setColor( background );
+			FlatUIUtils.paintComponentBackground( g, insets.left, insets.top,
+				c.getWidth() - insets.left - insets.right,
+				c.getHeight() - insets.top - insets.bottom,
+				0, arc );
 		}
 	}
 
 	protected Color getForeground( Component c ) {
-		return c.getForeground();
-	}
-
-	/** @since 3.2 */
-	protected int getSymbolHeight() {
-		return symbolHeight;
+		Color fg = null;
+		if( foreground != null || inactiveForeground != null ) {
+			Window window = SwingUtilities.windowForComponent( c );
+			fg = (window == null || window.isActive()) ? foreground : inactiveForeground;
+		}
+		return FlatButtonUI.buttonStateColor( c, (fg != null) ? fg : c.getForeground(),
+			null, null, hoverForeground, pressedForeground );
 	}
 }

flatlaf-core/src/main/java/com/formdev/flatlaf/icons/FlatWindowCloseIcon.java

@@ -17,53 +17,54 @@
 package com.formdev.flatlaf.icons;
 
 import java.awt.BasicStroke;
-import java.awt.Color;
-import java.awt.Component;
 import java.awt.Graphics2D;
 import java.awt.geom.Path2D;
-import com.formdev.flatlaf.ui.FlatButtonUI;
 import com.formdev.flatlaf.ui.FlatUIUtils;
 import com.formdev.flatlaf.util.SystemInfo;
 
 /**
  * "close" icon for windows (frames and dialogs).
  *
- * @uiDefault TitlePane.closeHoverBackground			Color
- * @uiDefault TitlePane.closePressedBackground			Color
- * @uiDefault TitlePane.closeHoverForeground			Color
- * @uiDefault TitlePane.closePressedForeground			Color
+ * @uiDefault TitlePane.closeBackground					Color	optional
+ * @uiDefault TitlePane.closeForeground					Color	optional
+ * @uiDefault TitlePane.closeInactiveBackground			Color	optional
+ * @uiDefault TitlePane.closeInactiveForeground			Color	optional
+ * @uiDefault TitlePane.closeHoverBackground			Color	optional
+ * @uiDefault TitlePane.closeHoverForeground			Color	optional
+ * @uiDefault TitlePane.closePressedBackground			Color	optional
+ * @uiDefault TitlePane.closePressedForeground			Color	optional
  *
  * @author Karl Tauber
  */
 public class FlatWindowCloseIcon
 	extends FlatWindowAbstractIcon
 {
-	private final Color hoverForeground;
-	private final Color pressedForeground;
-
 	public FlatWindowCloseIcon() {
 		this( null );
 	}
 
 	/** @since 3.2 */
 	public FlatWindowCloseIcon( String windowStyle ) {
-		super( FlatUIUtils.getSubUIDimension( "TitlePane.buttonSize", windowStyle ),
-			FlatUIUtils.getSubUIInt( "TitlePane.buttonSymbolHeight", windowStyle, 10 ),
+		super( windowStyle,
+			FlatUIUtils.getSubUIColor( "TitlePane.closeBackground", windowStyle ),
+			FlatUIUtils.getSubUIColor( "TitlePane.closeForeground", windowStyle ),
+			FlatUIUtils.getSubUIColor( "TitlePane.closeInactiveBackground", windowStyle ),
+			FlatUIUtils.getSubUIColor( "TitlePane.closeInactiveForeground", windowStyle ),
 			FlatUIUtils.getSubUIColor( "TitlePane.closeHoverBackground", windowStyle ),
-			FlatUIUtils.getSubUIColor( "TitlePane.closePressedBackground", windowStyle ) );
-
-		hoverForeground = FlatUIUtils.getSubUIColor( "TitlePane.closeHoverForeground", windowStyle );
-		pressedForeground = FlatUIUtils.getSubUIColor( "TitlePane.closePressedForeground", windowStyle );
+			FlatUIUtils.getSubUIColor( "TitlePane.closeHoverForeground", windowStyle ),
+			FlatUIUtils.getSubUIColor( "TitlePane.closePressedBackground", windowStyle ),
+			FlatUIUtils.getSubUIColor( "TitlePane.closePressedForeground", windowStyle ) );
 	}
 
 	@Override
 	protected void paintIconAt1x( Graphics2D g, int x, int y, int width, int height, double scaleFactor ) {
-		int iwh = (int) (getSymbolHeight() * scaleFactor);
+		int iwh = (int) (symbolHeight * scaleFactor);
 		int ix = x + ((width - iwh) / 2);
 		int iy = y + ((height - iwh) / 2);
 		int ix2 = ix + iwh - 1;
 		int iy2 = iy + iwh - 1;
-		float thickness = SystemInfo.isWindows_11_orLater ? (float) scaleFactor : (int) scaleFactor;
+		boolean isWindows10 = SystemInfo.isWindows_10_orLater && !SystemInfo.isWindows_11_orLater;
+		float thickness = Math.max( isWindows10 ? (int) scaleFactor : (float) scaleFactor, 1 );
 
 		Path2D path = new Path2D.Float( Path2D.WIND_EVEN_ODD, 4 );
 		path.moveTo( ix, iy );
@@ -73,9 +74,4 @@ public class FlatWindowCloseIcon
 		g.setStroke( new BasicStroke( thickness ) );
 		g.draw( path );
 	}
-
-	@Override
-	protected Color getForeground( Component c ) {
-		return FlatButtonUI.buttonStateColor( c, c.getForeground(), null, null, hoverForeground, pressedForeground );
-	}
 }

flatlaf-core/src/main/java/com/formdev/flatlaf/icons/FlatWindowIconifyIcon.java

@@ -37,8 +37,8 @@ public class FlatWindowIconifyIcon
 
 	@Override
 	protected void paintIconAt1x( Graphics2D g, int x, int y, int width, int height, double scaleFactor ) {
-		int iw = (int) (getSymbolHeight() * scaleFactor);
-		int ih = (int) scaleFactor;
+		int iw = (int) (symbolHeight * scaleFactor);
+		int ih = Math.max( (int) scaleFactor, 1 );
 		int ix = x + ((width - iw) / 2);
 		int iy = y + ((height - ih) / 2);
 

flatlaf-core/src/main/java/com/formdev/flatlaf/icons/FlatWindowMaximizeIcon.java

@@ -39,10 +39,11 @@ public class FlatWindowMaximizeIcon
 
 	@Override
 	protected void paintIconAt1x( Graphics2D g, int x, int y, int width, int height, double scaleFactor ) {
-		int iwh = (int) (getSymbolHeight() * scaleFactor);
+		int iwh = (int) (symbolHeight * scaleFactor);
 		int ix = x + ((width - iwh) / 2);
 		int iy = y + ((height - iwh) / 2);
-		float thickness = SystemInfo.isWindows_11_orLater ? (float) scaleFactor : (int) scaleFactor;
+		boolean isWindows10 = SystemInfo.isWindows_10_orLater && !SystemInfo.isWindows_11_orLater;
+		float thickness = Math.max( isWindows10 ? (int) scaleFactor : (float) scaleFactor, 1 );
 		int arc = Math.max( (int) (1.5 * scaleFactor), 2 );
 
 		g.fill( SystemInfo.isWindows_11_orLater

flatlaf-core/src/main/java/com/formdev/flatlaf/icons/FlatWindowRestoreIcon.java

@@ -42,14 +42,15 @@ public class FlatWindowRestoreIcon
 
 	@Override
 	protected void paintIconAt1x( Graphics2D g, int x, int y, int width, int height, double scaleFactor ) {
-		int iwh = (int) (getSymbolHeight() * scaleFactor);
+		int iwh = (int) (symbolHeight * scaleFactor);
 		int ix = x + ((width - iwh) / 2);
 		int iy = y + ((height - iwh) / 2);
-		float thickness = SystemInfo.isWindows_11_orLater ? (float) scaleFactor : (int) scaleFactor;
+		boolean isWindows10 = SystemInfo.isWindows_10_orLater && !SystemInfo.isWindows_11_orLater;
+		float thickness = Math.max( isWindows10 ? (int) scaleFactor : (float) scaleFactor, 1 );
 		int arc = Math.max( (int) (1.5 * scaleFactor), 2 );
 		int arcOuter = (int) (arc + (1.5 * scaleFactor));
 
-		int rwh = (int) ((getSymbolHeight() - 2) * scaleFactor);
+		int rwh = (int) ((symbolHeight - 2) * scaleFactor);
 		int ro2 = iwh - rwh;
 
 		// upper-right rectangle

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatBorder.java

@@ -23,7 +23,6 @@ import java.awt.Graphics;
 import java.awt.Graphics2D;
 import java.awt.Insets;
 import java.awt.Paint;
-import java.util.Map;
 import javax.swing.JComboBox;
 import javax.swing.JComponent;
 import javax.swing.JScrollPane;
@@ -32,7 +31,7 @@ import javax.swing.UIManager;
 import javax.swing.plaf.basic.BasicBorders;
 import com.formdev.flatlaf.FlatClientProperties;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
-import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableBorder;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableObject;
 import com.formdev.flatlaf.util.DerivedColor;
 
 /**
@@ -59,13 +58,15 @@ import com.formdev.flatlaf.util.DerivedColor;
  * @uiDefault Component.error.focusedBorderColor		Color
  * @uiDefault Component.warning.borderColor				Color
  * @uiDefault Component.warning.focusedBorderColor		Color
+ * @uiDefault Component.success.borderColor				Color
+ * @uiDefault Component.success.focusedBorderColor		Color
  * @uiDefault Component.custom.borderColor				Color
  *
  * @author Karl Tauber
  */
 public class FlatBorder
 	extends BasicBorders.MarginBorder
-	implements StyleableBorder
+	implements StyleableObject
 {
 	@Styleable protected int focusWidth = UIManager.getInt( "Component.focusWidth" );
 	@Styleable protected float innerFocusWidth = FlatUIUtils.getUIFloat( "Component.innerFocusWidth", 0 );
@@ -81,6 +82,8 @@ public class FlatBorder
 	@Styleable(dot=true) protected Color errorFocusedBorderColor = UIManager.getColor( "Component.error.focusedBorderColor" );
 	@Styleable(dot=true) protected Color warningBorderColor = UIManager.getColor( "Component.warning.borderColor" );
 	@Styleable(dot=true) protected Color warningFocusedBorderColor = UIManager.getColor( "Component.warning.focusedBorderColor" );
+	/** @since 3.6 */ @Styleable(dot=true) protected Color successBorderColor = UIManager.getColor( "Component.success.borderColor" );
+	/** @since 3.6 */ @Styleable(dot=true) protected Color successFocusedBorderColor = UIManager.getColor( "Component.success.focusedBorderColor" );
 	@Styleable(dot=true) protected Color customBorderColor = UIManager.getColor( "Component.custom.borderColor" );
 
 	// only used via styling (not in UI defaults, but has likewise client properties)
@@ -88,24 +91,6 @@ public class FlatBorder
 	/** @since 2 */ @Styleable protected Color outlineColor;
 	/** @since 2 */ @Styleable protected Color outlineFocusedColor;
 
-	/** @since 2 */
-	@Override
-	public Object applyStyleProperty( String key, Object value ) {
-		return FlatStylingSupport.applyToAnnotatedObject( this, key, value );
-	}
-
-	/** @since 2 */
-	@Override
-	public Map<String, Class<?>> getStyleableInfos() {
-		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
-	}
-
-	/** @since 2.5 */
-	@Override
-	public Object getStyleableValue( String key ) {
-		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
-	}
-
 	@Override
 	public void paintBorder( Component c, Graphics g, int x, int y, int width, int height ) {
 		Graphics2D g2 = (Graphics2D) g.create();
@@ -168,6 +153,9 @@ public class FlatBorder
 
 				case FlatClientProperties.OUTLINE_WARNING:
 					return isFocused( c ) ? warningFocusedBorderColor : warningBorderColor;
+
+				case FlatClientProperties.OUTLINE_SUCCESS:
+					return isFocused( c ) ? successFocusedBorderColor : successBorderColor;
 			}
 		} else if( outline instanceof Color ) {
 			Color color = (Color) outline;

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatButtonUI.java

@@ -58,8 +58,8 @@ import javax.swing.plaf.basic.BasicHTML;
 import javax.swing.text.View;
 import com.formdev.flatlaf.FlatClientProperties;
 import com.formdev.flatlaf.FlatLaf;
-import com.formdev.flatlaf.icons.FlatHelpButtonIcon;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableObject;
 import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableUI;
 import com.formdev.flatlaf.ui.FlatStylingSupport.UnknownStyleException;
 import com.formdev.flatlaf.util.HiDPIUtils;
@@ -280,8 +280,6 @@ public class FlatButtonUI
 
 		LookAndFeel.installProperty( b, "opaque", false );
 		LookAndFeel.installProperty( b, "iconTextGap", scale( iconTextGap ) );
-
-		MigLayoutVisualPadding.install( b );
 	}
 
 	@Override
@@ -291,10 +289,23 @@ public class FlatButtonUI
 		oldStyleValues = null;
 		borderShared = null;
 
-		MigLayoutVisualPadding.uninstall( b );
 		defaults_initialized = false;
 	}
 
+	@Override
+	protected void installListeners( AbstractButton b ) {
+		super.installListeners( b );
+
+		MigLayoutVisualPadding.install( b );
+	}
+
+	@Override
+	protected void uninstallListeners( AbstractButton b ) {
+		super.uninstallListeners( b );
+
+		MigLayoutVisualPadding.uninstall( b );
+	}
+
 	@Override
 	protected BasicButtonListener createButtonListener( AbstractButton b ) {
 		return new FlatButtonListener( b );
@@ -358,8 +369,8 @@ public class FlatButtonUI
 	/** @since 2 */
 	protected Object applyStyleProperty( AbstractButton b, String key, Object value ) {
 		if( key.startsWith( "help." ) ) {
-			if( !(helpButtonIcon instanceof FlatHelpButtonIcon) )
-				return new UnknownStyleException( key );
+			if( !(helpButtonIcon instanceof StyleableObject) )
+				throw new UnknownStyleException( key );
 
 			if( helpButtonIconShared ) {
 				helpButtonIcon = FlatStylingSupport.cloneIcon( helpButtonIcon );
@@ -367,7 +378,13 @@ public class FlatButtonUI
 			}
 
 			key = key.substring( "help.".length() );
-			return ((FlatHelpButtonIcon)helpButtonIcon).applyStyleProperty( key, value );
+			return ((StyleableObject)helpButtonIcon).applyStyleProperty( key, value );
+		}
+
+		// update internal values; otherwise isCustomBackground() and isCustomForeground() would return wrong results
+		switch( key ) {
+			case "background":	background = (Color) value; break;
+			case "foreground":	foreground = (Color) value; break;
 		}
 
 		if( "iconTextGap".equals( key ) && value instanceof Integer )
@@ -382,8 +399,8 @@ public class FlatButtonUI
 	@Override
 	public Map<String, Class<?>> getStyleableInfos( JComponent c ) {
 		Map<String, Class<?>> infos = FlatStylingSupport.getAnnotatedStyleableInfos( this, c.getBorder() );
-		if( helpButtonIcon instanceof FlatHelpButtonIcon )
-			FlatStylingSupport.putAllPrefixKey( infos, "help.", ((FlatHelpButtonIcon)helpButtonIcon).getStyleableInfos() );
+		if( helpButtonIcon instanceof StyleableObject )
+			FlatStylingSupport.putAllPrefixKey( infos, "help.", ((StyleableObject)helpButtonIcon).getStyleableInfos() );
 		return infos;
 	}
 
@@ -391,8 +408,8 @@ public class FlatButtonUI
 	@Override
 	public Object getStyleableValue( JComponent c, String key ) {
 		if( key.startsWith( "help." ) ) {
-			return (helpButtonIcon instanceof FlatHelpButtonIcon)
-				? ((FlatHelpButtonIcon)helpButtonIcon).getStyleableValue( key.substring( "help.".length() ) )
+			return (helpButtonIcon instanceof StyleableObject)
+				? ((StyleableObject)helpButtonIcon).getStyleableValue( key.substring( "help.".length() ) )
 				: null;
 		}
 
@@ -653,7 +670,8 @@ public class FlatButtonUI
 	}
 
 	protected Color getBackground( JComponent c ) {
-		boolean toolBarButton = isToolBarButton( c ) || isBorderlessButton( c );
+		boolean def = isDefaultButton( c );
+		boolean toolBarButton = !def && (isToolBarButton( c ) || isBorderlessButton( c ));
 
 		// selected state
 		if( ((AbstractButton)c).isSelected() ) {
@@ -681,7 +699,6 @@ public class FlatButtonUI
 				toolbarPressedBackground );
 		}
 
-		boolean def = isDefaultButton( c );
 		return buttonStateColor( c,
 			getBackgroundBase( c, def ),
 			disabledBackground,
@@ -733,7 +750,8 @@ public class FlatButtonUI
 
 	protected Color getForeground( JComponent c ) {
 		Color fg = c.getForeground();
-		boolean toolBarButton = isToolBarButton( c ) || isBorderlessButton( c );
+		boolean def = isDefaultButton( c );
+		boolean toolBarButton = !def && (isToolBarButton( c ) || isBorderlessButton( c ));
 
 		// selected state
 		if( ((AbstractButton)c).isSelected() ) {
@@ -759,7 +777,6 @@ public class FlatButtonUI
 				toolbarPressedForeground );
 		}
 
-		boolean def = isDefaultButton( c );
 		return buttonStateColor( c,
 			getForegroundBase( c, def ),
 			disabledText,

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatCaret.java

@@ -17,6 +17,7 @@
 package com.formdev.flatlaf.ui;
 
 import static com.formdev.flatlaf.FlatClientProperties.*;
+import java.awt.Container;
 import java.awt.EventQueue;
 import java.awt.Rectangle;
 import java.awt.event.ActionEvent;
@@ -24,7 +25,9 @@ import java.awt.event.FocusEvent;
 import java.awt.event.MouseEvent;
 import javax.swing.Action;
 import javax.swing.ActionMap;
+import javax.swing.JComboBox;
 import javax.swing.JFormattedTextField;
+import javax.swing.JSpinner;
 import javax.swing.SwingUtilities;
 import javax.swing.UIManager;
 import javax.swing.plaf.UIResource;
@@ -33,6 +36,7 @@ import javax.swing.text.DefaultCaret;
 import javax.swing.text.DefaultEditorKit;
 import javax.swing.text.Document;
 import javax.swing.text.JTextComponent;
+import javax.swing.text.Position;
 import javax.swing.text.Utilities;
 
 /**
@@ -48,12 +52,15 @@ public class FlatCaret
 {
 	private static final String KEY_CARET_INFO = "FlatLaf.internal.caretInfo";
 
+	// selectAllOnFocusPolicy
+	private static final int NEVER = 0, ONCE = 1, ALWAYS = 2;
+
 	private final String selectAllOnFocusPolicy;
 	private final boolean selectAllOnMouseClick;
 
 	private boolean inInstall;
 	private boolean wasFocused;
-	private boolean wasTemporaryLost;
+	private boolean wasFocusTemporaryLost;
 	private boolean isMousePressed;
 	private boolean isWordSelection;
 	private boolean isLineSelection;
@@ -94,6 +101,9 @@ public class FlatCaret
 			// restore selection
 			select( (int) ci[1], (int) ci[0] );
 
+			if( ci[4] != 0 )
+				wasFocused = true;
+
 			// if text component is focused, then caret and selection are visible,
 			// but when switching theme, the component does not yet have
 			// a highlighter and the selection is not painted
@@ -121,6 +131,7 @@ public class FlatCaret
 			getMark(),
 			getBlinkRate(),
 			System.currentTimeMillis(),
+			wasFocused ? 1 : 0,
 		} );
 
 		super.deinstall( c );
@@ -140,11 +151,36 @@ public class FlatCaret
 		super.adjustVisibility( nloc );
 	}
 
+	@Override
+	public void setDot( int dot ) {
+		super.setDot( dot );
+
+		// mark as focused if invoked from JTextComponent.setCaretPosition()
+		// to disable SELECT_ALL_ON_FOCUS_POLICY_ONCE if application explicitly changes selection
+		if( !wasFocused &&
+			getSelectAllOnFocusPolicy() == ONCE &&
+			StackUtils.wasInvokedFrom( JTextComponent.class.getName(), "setCaretPosition", 6 ) )
+		  wasFocused = true;
+	}
+
+	@Override
+	public void moveDot( int dot ) {
+		super.moveDot( dot );
+
+		// mark as focused if invoked from JTextComponent.moveCaretPosition()
+		// to disable SELECT_ALL_ON_FOCUS_POLICY_ONCE if application explicitly changes selection
+		if( !wasFocused &&
+			getSelectAllOnFocusPolicy() == ONCE &&
+			StackUtils.wasInvokedFrom( JTextComponent.class.getName(), "moveCaretPosition", 6 ) )
+		  wasFocused = true;
+	}
+
 	@Override
 	public void focusGained( FocusEvent e ) {
-		if( !inInstall && !wasTemporaryLost && (!isMousePressed || selectAllOnMouseClick) )
+		if( !inInstall && !wasFocusTemporaryLost && (!isMousePressed || isSelectAllOnMouseClick()) )
 			selectAllOnFocusGained();
-		wasTemporaryLost = false;
+
+		wasFocusTemporaryLost = false;
 		wasFocused = true;
 
 		super.focusGained( e );
@@ -152,7 +188,7 @@ public class FlatCaret
 
 	@Override
 	public void focusLost( FocusEvent e ) {
-		wasTemporaryLost = e.isTemporary();
+		wasFocusTemporaryLost = e.isTemporary();
 		super.focusLost( e );
 	}
 
@@ -232,24 +268,13 @@ public class FlatCaret
 		if( doc == null || !c.isEnabled() || !c.isEditable() || FlatUIUtils.isCellEditor( c ) )
 			return;
 
-		Object selectAllOnFocusPolicy = c.getClientProperty( SELECT_ALL_ON_FOCUS_POLICY );
-		if( selectAllOnFocusPolicy == null )
-			selectAllOnFocusPolicy = this.selectAllOnFocusPolicy;
-
-		if( selectAllOnFocusPolicy == null || SELECT_ALL_ON_FOCUS_POLICY_NEVER.equals( selectAllOnFocusPolicy ) )
+		int selectAllOnFocusPolicy = getSelectAllOnFocusPolicy();
+		if( selectAllOnFocusPolicy == NEVER )
 			return;
 
-		if( !SELECT_ALL_ON_FOCUS_POLICY_ALWAYS.equals( selectAllOnFocusPolicy ) ) {
-			// policy is "once" (or null or unknown)
-
+		if( selectAllOnFocusPolicy == ONCE && !isMousePressed ) {
 			// was already focused?
-			if( wasFocused )
-				return;
-
-			// check whether selection was modified before gaining focus
-			int dot = getDot();
-			int mark = getMark();
-			if( dot != mark || dot != doc.getLength() )
+			if( wasFocused && !(c instanceof JFormattedTextField) )
 				return;
 		}
 
@@ -265,16 +290,51 @@ public class FlatCaret
 
 				select( 0, c2.getDocument().getLength() );
 			} );
-		} else {
+		} else
 			select( 0, doc.getLength() );
-		}
 	}
 
 	private void select( int mark, int dot ) {
 		if( mark != getMark() )
-			setDot( mark );
+			setDot( mark, Position.Bias.Forward );
 		if( dot != getDot() )
-			moveDot( dot );
+			moveDot( dot, Position.Bias.Forward );
+	}
+
+	private int getSelectAllOnFocusPolicy() {
+		Object value = getClientProperty( SELECT_ALL_ON_FOCUS_POLICY );
+		// Note: using String.valueOf() because selectAllOnFocusPolicy may be null
+		switch( String.valueOf( value instanceof String ? value : selectAllOnFocusPolicy ) ) {
+			default:
+			case SELECT_ALL_ON_FOCUS_POLICY_NEVER:  return NEVER;
+			case SELECT_ALL_ON_FOCUS_POLICY_ONCE:   return ONCE;
+			case SELECT_ALL_ON_FOCUS_POLICY_ALWAYS: return ALWAYS;
+		}
+	}
+
+	private boolean isSelectAllOnMouseClick() {
+		Object value = getClientProperty( SELECT_ALL_ON_MOUSE_CLICK );
+		return (value instanceof Boolean) ? (boolean) value : selectAllOnMouseClick;
+	}
+
+	private Object getClientProperty( String key ) {
+		JTextComponent c = getComponent();
+		if( c == null )
+			return null;
+
+		Object value = c.getClientProperty( key );
+		if( value != null )
+			return value;
+
+		Container parent = c.getParent();
+		if( parent instanceof JComboBox )
+			return ((JComboBox<?>)parent).getClientProperty( key );
+		if( parent instanceof JSpinner.DefaultEditor ) {
+			parent = parent.getParent();
+			if( parent instanceof JSpinner )
+				return ((JSpinner)parent).getClientProperty( key );
+		}
+		return null;
 	}
 
 	/** @since 1.4 */

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatComboBoxUI.java

@@ -113,6 +113,7 @@ import com.formdev.flatlaf.util.SystemInfo;
  * @uiDefault ComboBox.buttonBackground			Color	optional
  * @uiDefault ComboBox.buttonEditableBackground	Color	optional
  * @uiDefault ComboBox.buttonFocusedBackground	Color	optional; defaults to ComboBox.focusedBackground
+ * @uiDefault ComboBox.buttonFocusedEditableBackground	Color	optional; defaults to ComboBox.buttonEditableBackground
  * @uiDefault ComboBox.buttonSeparatorWidth		int or float	optional; defaults to Component.borderWidth
  * @uiDefault ComboBox.buttonSeparatorColor		Color	optional
  * @uiDefault ComboBox.buttonDisabledSeparatorColor Color	optional
@@ -147,6 +148,7 @@ public class FlatComboBoxUI
 	@Styleable protected Color buttonBackground;
 	@Styleable protected Color buttonEditableBackground;
 	@Styleable protected Color buttonFocusedBackground;
+	/** @since 3.7.1 */ @Styleable protected Color buttonFocusedEditableBackground;
 	/** @since 2 */ @Styleable protected float buttonSeparatorWidth;
 	/** @since 2 */ @Styleable protected Color buttonSeparatorColor;
 	/** @since 2 */ @Styleable protected Color buttonDisabledSeparatorColor;
@@ -225,6 +227,8 @@ public class FlatComboBoxUI
 			}
 		};
 		comboBox.addMouseListener( hoverListener );
+
+		MigLayoutVisualPadding.install( comboBox );
 	}
 
 	@Override
@@ -233,6 +237,8 @@ public class FlatComboBoxUI
 
 		comboBox.removeMouseListener( hoverListener );
 		hoverListener = null;
+
+		MigLayoutVisualPadding.uninstall( comboBox );
 	}
 
 	@Override
@@ -254,6 +260,7 @@ public class FlatComboBoxUI
 
 		buttonBackground = UIManager.getColor( "ComboBox.buttonBackground" );
 		buttonFocusedBackground = UIManager.getColor( "ComboBox.buttonFocusedBackground" );
+		buttonFocusedEditableBackground = UIManager.getColor( "ComboBox.buttonFocusedEditableBackground" );
 		buttonEditableBackground = UIManager.getColor( "ComboBox.buttonEditableBackground" );
 		buttonSeparatorWidth = FlatUIUtils.getUIFloat( "ComboBox.buttonSeparatorWidth", FlatUIUtils.getUIFloat( "Component.borderWidth", 1 ) );
 		buttonSeparatorColor = UIManager.getColor( "ComboBox.buttonSeparatorColor" );
@@ -274,8 +281,6 @@ public class FlatComboBoxUI
 			comboBox.setMaximumRowCount( maximumRowCount );
 
 		paddingBorder = new CellPaddingBorder( padding );
-
-		MigLayoutVisualPadding.install( comboBox );
 	}
 
 	@Override
@@ -291,6 +296,7 @@ public class FlatComboBoxUI
 		buttonBackground = null;
 		buttonEditableBackground = null;
 		buttonFocusedBackground = null;
+		buttonFocusedEditableBackground = null;
 		buttonSeparatorColor = null;
 		buttonDisabledSeparatorColor = null;
 		buttonArrowColor = null;
@@ -304,8 +310,6 @@ public class FlatComboBoxUI
 
 		oldStyleValues = null;
 		borderShared = null;
-
-		MigLayoutVisualPadding.uninstall( comboBox );
 	}
 
 	@Override
@@ -587,7 +591,7 @@ public class FlatComboBoxUI
 			// paint arrow button background
 			if( enabled && !isCellRenderer && arrowButton.isVisible() ) {
 				Color buttonColor = paintButton
-					? buttonEditableBackground
+					? (buttonFocusedEditableBackground != null && isPermanentFocusOwner( comboBox ) ? buttonFocusedEditableBackground : buttonEditableBackground)
 					: (buttonFocusedBackground != null || focusedBackground != null) && isPermanentFocusOwner( comboBox )
 						? (buttonFocusedBackground != null ? buttonFocusedBackground : focusedBackground)
 						: buttonBackground;
@@ -882,7 +886,7 @@ public class FlatComboBoxUI
 				GraphicsConfiguration gc = comboBox.getGraphicsConfiguration();
 				if( gc != null ) {
 					Rectangle screenBounds = gc.getBounds();
-					Insets screenInsets = Toolkit.getDefaultToolkit().getScreenInsets( gc );
+					Insets screenInsets = FlatUIUtils.getScreenInsets( gc );
 					displayWidth = Math.min( displayWidth, screenBounds.width - screenInsets.left - screenInsets.right );
 				} else {
 					Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatDropShadowBorder.java

@@ -24,9 +24,8 @@ import java.awt.Image;
 import java.awt.Insets;
 import java.awt.RadialGradientPaint;
 import java.awt.image.BufferedImage;
-import java.util.Map;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
-import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableBorder;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableObject;
 import com.formdev.flatlaf.util.HiDPIUtils;
 import com.formdev.flatlaf.util.UIScale;
 
@@ -43,7 +42,7 @@ import com.formdev.flatlaf.util.UIScale;
  */
 public class FlatDropShadowBorder
 	extends FlatEmptyBorder
-	implements StyleableBorder
+	implements StyleableObject
 {
 	@Styleable protected Color shadowColor;
 	@Styleable protected Insets shadowInsets;
@@ -74,7 +73,7 @@ public class FlatDropShadowBorder
 
 		this.shadowColor = shadowColor;
 		this.shadowInsets = shadowInsets;
-		this.shadowOpacity = shadowOpacity;
+		this.shadowOpacity = Math.min( Math.max( shadowOpacity, 0f ), 1f );
 
 		shadowSize = maxInset( shadowInsets );
 	}
@@ -93,7 +92,7 @@ public class FlatDropShadowBorder
 	/** @since 2 */
 	@Override
 	public Object applyStyleProperty( String key, Object value ) {
-		Object oldValue = FlatStylingSupport.applyToAnnotatedObject( this, key, value );
+		Object oldValue = StyleableObject.super.applyStyleProperty( key, value );
 		if( key.equals( "shadowInsets" ) ) {
 			applyStyleProperty( nonNegativeInsets( shadowInsets ) );
 			shadowSize = maxInset( shadowInsets );
@@ -101,18 +100,6 @@ public class FlatDropShadowBorder
 		return oldValue;
 	}
 
-	/** @since 2 */
-	@Override
-	public Map<String, Class<?>> getStyleableInfos() {
-		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
-	}
-
-	/** @since 2.5 */
-	@Override
-	public Object getStyleableValue( String key ) {
-		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
-	}
-
 	@Override
 	public void paintBorder( Component c, Graphics g, int x, int y, int width, int height ) {
 		if( shadowSize <= 0 )

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatFileChooserUI.java

@@ -376,31 +376,68 @@ public class FlatFileChooserUI
 			if( icon != null )
 				return icon;
 
-			// get system icon
-			if( f != null ) {
-				try {
-					icon = getFileChooser().getFileSystemView().getSystemIcon( f );
-				} catch( NullPointerException ex ) {
-					// Java 21 may throw a NPE for exe files that use default Windows exe icon
-				}
+			// new proxy icon
+			//
+			// Note: Since this is a super light weight icon object, we do not add it
+			//       to the icon cache here. This keeps cache small in case of large directories
+			//       with thousands of files when icons of all files are only needed to compute
+			//       the layout of list/table, but never painted because located outside of visible area.
+			//       When an icon needs to be painted, the proxy adds it to the icon cache
+			//       and loads the real icon.
+			return new FlatFileViewIcon( f );
+		}
 
-				if( icon != null ) {
-					if( icon instanceof ImageIcon )
-						icon = new ScaledImageIcon( (ImageIcon) icon );
-					cacheIcon( f, icon );
-					return icon;
-				}
+		//---- class FlatFileViewIcon -----------------------------------------
+
+		/**
+		 * A proxy icon that has a fixed (scaled) width/height (16x16) and
+		 * gets/loads the real (system) icon only for painting.
+		 * Avoids unnecessary getting/loading system icons.
+		 */
+		private class FlatFileViewIcon
+			implements Icon
+		{
+			private final File f;
+			private Icon realIcon;
+
+			FlatFileViewIcon( File f ) {
+				this.f = f;
 			}
 
-			// get default icon
-			icon = super.getIcon( f );
-
-			if( icon instanceof ImageIcon ) {
-				icon = new ScaledImageIcon( (ImageIcon) icon );
-				cacheIcon( f, icon );
+			@Override
+			public int getIconWidth() {
+				return UIScale.scale( 16 );
 			}
 
-			return icon;
+			@Override
+			public int getIconHeight() {
+				return UIScale.scale( 16 );
+			}
+
+			@Override
+			public void paintIcon( Component c, Graphics g, int x, int y ) {
+				// get icon on demand
+				if( realIcon == null ) {
+					// get system icon
+					try {
+						if( f != null )
+							realIcon = getFileChooser().getFileSystemView().getSystemIcon( f );
+					} catch( NullPointerException ex ) {
+						// Java 21 may throw a NPE for exe files that use default Windows exe icon
+					}
+
+					// get default icon
+					if( realIcon == null )
+						realIcon = FlatFileView.super.getIcon( f );
+
+					if( realIcon instanceof ImageIcon )
+						realIcon = new ScaledImageIcon( (ImageIcon) realIcon );
+
+					cacheIcon( f, this );
+				}
+
+				realIcon.paintIcon( c, g, x, y );
+			}
 		}
 	}
 

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatInternalFrameUI.java

@@ -35,7 +35,7 @@ import javax.swing.event.MouseInputAdapter;
 import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.basic.BasicInternalFrameUI;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
-import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableBorder;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableObject;
 import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableUI;
 import com.formdev.flatlaf.util.LoggingFacade;
 
@@ -209,7 +209,7 @@ public class FlatInternalFrameUI
 
 	public static class FlatInternalFrameBorder
 		extends FlatEmptyBorder
-		implements StyleableBorder
+		implements StyleableObject
 	{
 		@Styleable protected Color activeBorderColor = UIManager.getColor( "InternalFrame.activeBorderColor" );
 		@Styleable protected Color inactiveBorderColor = UIManager.getColor( "InternalFrame.inactiveBorderColor" );

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatListUI.java

@@ -57,6 +57,7 @@ import com.formdev.flatlaf.util.UIScale;
  * @uiDefault List.foreground						Color
  * @uiDefault List.selectionBackground				Color
  * @uiDefault List.selectionForeground				Color
+ * @uiDefault List.alternateRowColor				Color
  * @uiDefault List.dropLineColor					Color
  * @uiDefault List.border							Border
  * @uiDefault List.cellRenderer						ListCellRenderer
@@ -93,6 +94,7 @@ public class FlatListUI
 	@Styleable protected Color selectionForeground;
 	@Styleable protected Color selectionInactiveBackground;
 	@Styleable protected Color selectionInactiveForeground;
+	/** @since 3.6 */ @Styleable protected Color alternateRowColor;
 	/** @since 3 */ @Styleable protected Insets selectionInsets;
 	/** @since 3 */ @Styleable protected int selectionArc;
 
@@ -129,6 +131,7 @@ public class FlatListUI
 		selectionForeground = UIManager.getColor( "List.selectionForeground" );
 		selectionInactiveBackground = UIManager.getColor( "List.selectionInactiveBackground" );
 		selectionInactiveForeground = UIManager.getColor( "List.selectionInactiveForeground" );
+		alternateRowColor = UIManager.getColor( "List.alternateRowColor" );
 		selectionInsets = UIManager.getInsets( "List.selectionInsets" );
 		selectionArc = UIManager.getInt( "List.selectionArc" );
 
@@ -143,6 +146,7 @@ public class FlatListUI
 		selectionForeground = null;
 		selectionInactiveBackground = null;
 		selectionInactiveForeground = null;
+		alternateRowColor = null;
 
 		oldStyleValues = null;
 	}
@@ -298,6 +302,18 @@ public class FlatListUI
 		ListModel dataModel, ListSelectionModel selModel, int leadIndex )
 	{
 		boolean isSelected = selModel.isSelectedIndex( row );
+		boolean isDropRow = isDropRow( row );
+
+		// paint alternating rows
+		if( alternateRowColor != null && row % 2 != 0 &&
+			!"ComboBox.list".equals( list.getName() ) ) // combobox does not support alternate row color
+		{
+			g.setColor( alternateRowColor );
+
+			float arc = UIScale.scale( selectionArc / 2f );
+			FlatUIUtils.paintSelection( (Graphics2D) g, rowBounds.x, rowBounds.y, rowBounds.width, rowBounds.height,
+				UIScale.scale( selectionInsets ), arc, arc, arc, arc, 0 );
+		}
 
 		// get renderer component
 		@SuppressWarnings( "unchecked" )
@@ -305,7 +321,7 @@ public class FlatListUI
 			dataModel.getElementAt( row ), row, isSelected,
 			FlatUIUtils.isPermanentFocusOwner( list ) && (row == leadIndex) );
 
-		//
+		// use smaller cell width if list is used in JFileChooser
 		boolean isFileList = Boolean.TRUE.equals( list.getClientProperty( "List.isFileList" ) );
 		int cx, cw;
 		if( isFileList ) {
@@ -320,7 +336,7 @@ public class FlatListUI
 		}
 
 		// rounded selection or selection insets
-		if( isSelected &&
+		if( (isSelected || isDropRow) &&
 			!isFileList && // rounded selection is not supported for file list
 			(rendererComponent instanceof DefaultListCellRenderer ||
 			 rendererComponent instanceof BasicComboBoxRenderer) &&
@@ -361,7 +377,22 @@ public class FlatListUI
 						this.getColor() == rendererComponent.getBackground() )
 					{
 						inPaintSelection = true;
-						paintCellSelection( this, row, x, y, width, height );
+						if( isDropRow ) {
+							// for rounded drop background, it is necessary to first
+							// paint selection background because may be not rounded on some corners
+							if( isSelected ) {
+								Color oldColor = getColor();
+								setColor( list.getSelectionBackground() );
+								paintCellSelection( this, row, x, y, width, height );
+								setColor( oldColor );
+							}
+
+							// paint drop background
+							float arc = UIScale.scale( selectionArc / 2f );
+							FlatUIUtils.paintSelection( this, x, y, width, height,
+								UIScale.scale( selectionInsets ), arc, arc, arc, arc, 0 );
+						} else
+							paintCellSelection( this, row, x, y, width, height );
 						inPaintSelection = false;
 					} else
 						super.fillRect( x, y, width, height );
@@ -460,4 +491,15 @@ public class FlatListUI
 		FlatListUI ui = (FlatListUI) list.getUI();
 		ui.paintCellSelection( g, row, x, y, width, height );
 	}
+
+	/**
+	 * Checks whether dropping on a row.
+	 * See DefaultListCellRenderer.getListCellRendererComponent().
+	 */
+	private boolean isDropRow( int row ) {
+		JList.DropLocation dropLocation = list.getDropLocation();
+		return dropLocation != null &&
+			!dropLocation.isInsert() &&
+			dropLocation.getIndex() == row;
+	}
 }

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatMenuBarBorder.java

@@ -21,11 +21,10 @@ import java.awt.Color;
 import java.awt.Component;
 import java.awt.Graphics;
 import java.awt.Insets;
-import java.util.Map;
 import javax.swing.JMenuBar;
 import javax.swing.UIManager;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
-import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableBorder;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableObject;
 
 /**
  * Border for {@link javax.swing.JMenuBar}.
@@ -36,27 +35,10 @@ import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableBorder;
  */
 public class FlatMenuBarBorder
 	extends FlatMarginBorder
-	implements StyleableBorder
+	implements StyleableObject
 {
 	@Styleable protected Color borderColor = UIManager.getColor( "MenuBar.borderColor" );
 
-	/** @since 2 */
-	@Override
-	public Object applyStyleProperty( String key, Object value ) {
-		return FlatStylingSupport.applyToAnnotatedObject( this, key, value );
-	}
-
-	@Override
-	public Map<String, Class<?>> getStyleableInfos() {
-		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
-	}
-
-	/** @since 2.5 */
-	@Override
-	public Object getStyleableValue( String key ) {
-		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
-	}
-
 	@Override
 	public void paintBorder( Component c, Graphics g, int x, int y, int width, int height ) {
 		if( !showBottomSeparator( c ) )

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatNativeLibrary.java

@@ -58,6 +58,7 @@ class FlatNativeLibrary
 
 		String classifier;
 		String ext;
+		boolean unknownArch = false;
 		if( SystemInfo.isWindows_10_orLater && (SystemInfo.isX86 || SystemInfo.isX86_64 || SystemInfo.isAARCH64) ) {
 			// Windows: requires Windows 10/11 (x86, x86_64 or aarch64)
 
@@ -90,11 +91,14 @@ class FlatNativeLibrary
 			classifier = SystemInfo.isAARCH64 ? "macos-arm64" : "macos-x86_64";
 			ext = "dylib";
 
-		} else if( SystemInfo.isLinux && SystemInfo.isX86_64 ) {
-			// Linux: requires x86_64
+		} else if( SystemInfo.isLinux ) {
+			// Linux: x86_64 or aarch64 (but also supports unknown architectures)
 
-			classifier = "linux-x86_64";
+			classifier = SystemInfo.isAARCH64 ? "linux-arm64"
+				: (SystemInfo.isX86_64 ? "linux-x86_64"
+					: "linux-" + sanitize( System.getProperty( "os.arch" ) ));
 			ext = "so";
+			unknownArch = !SystemInfo.isX86_64 && !SystemInfo.isAARCH64;
 
 			// Load libjawt.so (part of JRE) explicitly because it is not found
 			// in all Java versions/distributions.
@@ -106,7 +110,7 @@ class FlatNativeLibrary
 			return; // no native library available for current OS or CPU architecture
 
 		// load native library
-		NativeLibrary nativeLibrary = createNativeLibrary( classifier, ext );
+		NativeLibrary nativeLibrary = createNativeLibrary( classifier, ext, unknownArch );
 		if( !nativeLibrary.isLoaded() )
 			return;
 
@@ -128,7 +132,7 @@ class FlatNativeLibrary
 		FlatNativeLibrary.nativeLibrary = nativeLibrary;
 	}
 
-	private static NativeLibrary createNativeLibrary( String classifier, String ext ) {
+	private static NativeLibrary createNativeLibrary( String classifier, String ext, boolean unknownArch ) {
 		String libraryName = "flatlaf-" + classifier;
 
 		// load from "java.library.path" or from path specified in system property "flatlaf.nativeLibraryPath"
@@ -139,9 +143,11 @@ class FlatNativeLibrary
 				if( library.isLoaded() )
 					return library;
 
-				LoggingFacade.INSTANCE.logSevere( "FlatLaf: Native library '" + System.mapLibraryName( libraryName )
-					+ "' not found in java.library.path '" + System.getProperty( "java.library.path" )
-					+ "'. Using extracted native library instead.", null );
+				if( !unknownArch ) {
+					LoggingFacade.INSTANCE.logSevere( "FlatLaf: Native library '" + System.mapLibraryName( libraryName )
+						+ "' not found in java.library.path '" + System.getProperty( "java.library.path" )
+						+ "'. Using extracted native library instead.", null );
+				}
 			} else {
 				// try standard library naming scheme
 				// (same as in flatlaf.jar in package 'com/formdev/flatlaf/natives')
@@ -160,11 +166,13 @@ class FlatNativeLibrary
 						return new NativeLibrary( libraryFile2, true );
 				}
 
-				LoggingFacade.INSTANCE.logSevere( "FlatLaf: Native library '"
-					+ libraryFile.getName()
-					+ (libraryName2 != null ? ("' or '" + libraryName2) : "")
-					+ "' not found in '" + libraryFile.getParentFile().getAbsolutePath()
-					+ "'. Using extracted native library instead.", null );
+				if( !unknownArch ) {
+					LoggingFacade.INSTANCE.logSevere( "FlatLaf: Native library '"
+						+ libraryFile.getName()
+						+ (libraryName2 != null ? ("' or '" + libraryName2) : "")
+						+ "' not found in '" + libraryFile.getParentFile().getAbsolutePath()
+						+ "'. Using extracted native library instead.", null );
+				}
 			}
 		}
 
@@ -175,7 +183,7 @@ class FlatNativeLibrary
 			return new NativeLibrary( libraryFile, true );
 
 		// load from FlatLaf jar (extract native library to temp folder)
-		return new NativeLibrary( "com/formdev/flatlaf/natives/" + libraryName, null, true );
+		return new NativeLibrary( "com/formdev/flatlaf/natives/" + libraryName, null, !unknownArch );
 	}
 
 	/**
@@ -273,6 +281,13 @@ class FlatNativeLibrary
 			+ '-' + classifier + '.' + ext;
 	}
 
+	/**
+	 * Allow only 'a'-'z', 'A'-'Z', '0'-'9', '_' and '-' in filenames.
+	 */
+	private static String sanitize( String s ) {
+		return s.replaceAll( "[^a-zA-Z0-9_-]", "_" );
+	}
+
 	private static void loadJAWT() {
 		try {
 			System.loadLibrary( "jawt" );

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatNativeLinuxLibrary.java

@@ -24,6 +24,7 @@ import java.awt.event.MouseEvent;
 import java.awt.geom.AffineTransform;
 import javax.swing.JDialog;
 import javax.swing.JFrame;
+import javax.swing.JOptionPane;
 import com.formdev.flatlaf.util.SystemInfo;
 
 /**
@@ -34,9 +35,9 @@ import com.formdev.flatlaf.util.SystemInfo;
  * @author Karl Tauber
  * @since 2.5
  */
-class FlatNativeLinuxLibrary
+public class FlatNativeLinuxLibrary
 {
-	private static int API_VERSION_LINUX = 3001;
+	private static int API_VERSION_LINUX = 3003;
 
 	/**
 	 * Checks whether native library is loaded/available.
@@ -44,13 +45,25 @@ class FlatNativeLinuxLibrary
 	 * <b>Note</b>: It is required to invoke this method before invoking any other
 	 *              method of this class. Otherwise, the native library may not be loaded.
 	 */
-	static boolean isLoaded() {
+	public static boolean isLoaded() {
 		return SystemInfo.isLinux && FlatNativeLibrary.isLoaded( API_VERSION_LINUX );
 	}
 
+
+	//---- X Window System ----------------------------------------------------
+
 	// direction for _NET_WM_MOVERESIZE message
-	// see https://specifications.freedesktop.org/wm-spec/wm-spec-latest.html
-	static final int MOVE = 8;
+	// see https://specifications.freedesktop.org/wm-spec/latest/ar01s04.html
+	static final int
+		SIZE_TOPLEFT     = 0,
+		SIZE_TOP         = 1,
+		SIZE_TOPRIGHT    = 2,
+		SIZE_RIGHT       = 3,
+		SIZE_BOTTOMRIGHT = 4,
+		SIZE_BOTTOM      = 5,
+		SIZE_BOTTOMLEFT  = 6,
+		SIZE_LEFT        = 7,
+		MOVE             = 8;
 
 	private static Boolean isXWindowSystem;
 
@@ -115,4 +128,110 @@ class FlatNativeLinuxLibrary
 		return (window instanceof JFrame && JFrame.isDefaultLookAndFeelDecorated() && ((JFrame)window).isUndecorated()) ||
 			(window instanceof JDialog && JDialog.isDefaultLookAndFeelDecorated() && ((JDialog)window).isUndecorated());
 	}
+
+
+	//---- GTK ----------------------------------------------------------------
+
+	private static Boolean isGtk3Available;
+
+	/**
+	 * Checks whether GTK 3 is available.
+	 * Use this before invoking any native method that uses GTK.
+	 * Otherwise the app may terminate immediately if GTK is not installed.
+	 * <p>
+	 * This works because Java uses {@code dlopen(RTLD_LAZY)} to load JNI libraries,
+	 * which only resolves symbols as the code that references them is executed.
+	 *
+	 * @since 3.7
+	 */
+	public static boolean isGtk3Available() {
+		if( isGtk3Available == null )
+			isGtk3Available = isLibAvailable( "libgtk-3.so.0" ) || isLibAvailable( "libgtk-3.so" );
+		return isGtk3Available;
+	}
+
+	private native static boolean isLibAvailable( String libname );
+
+	/**
+	 * https://docs.gtk.org/gtk3/iface.FileChooser.html#properties
+	 *
+	 * @since 3.7
+	 */
+	public static final int
+		FC_select_folder					= 1 << 0,
+		FC_select_multiple					= 1 << 1,
+		FC_show_hidden						= 1 << 2,
+		FC_local_only						= 1 << 3,  // default
+		FC_do_overwrite_confirmation		= 1 << 4,  // GTK 3 only; removed and always-on in GTK 4
+		FC_create_folders					= 1 << 5;  // default for Save
+
+	/**
+	 * Shows the Linux/GTK system file dialog
+	 * <a href="https://docs.gtk.org/gtk3/class.FileChooserDialog.html">GtkFileChooserDialog</a>.
+	 * <p>
+	 * Uses {@code GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER} if {@link #FC_select_folder} is set in parameter {@code optionsSet}.
+	 * Otherwise uses {@code GTK_FILE_CHOOSER_ACTION_OPEN} if parameter {@code open} is {@code true},
+	 * or {@code GTK_FILE_CHOOSER_ACTION_SAVE} if {@code false}.
+	 * <p>
+	 * <b>Note:</b> This method blocks the current thread until the user closes
+	 * the file dialog. It is highly recommended to invoke it from a new thread
+	 * to avoid blocking the AWT event dispatching thread.
+	 *
+	 * @param owner the owner of the file dialog; or {@code null}
+	 * @param dark preferred appearance of the file dialog: {@code 1} = prefer dark, {@code 0} = prefer light, {@code -1} = default
+	 * @param open if {@code true}, shows the open dialog; if {@code false}, shows the save dialog
+	 * @param title text displayed in dialog title; or {@code null}
+	 * @param okButtonLabel text displayed in default button; or {@code null}.
+	 *        Use '_' for mnemonics (e.g. "_Choose")
+	 *        Use '__' for '_' character (e.g. "Choose__and__Quit").
+	 * @param currentName user-editable filename currently shown in the filename field in save dialog; or {@code null}
+	 * @param currentFolder current directory shown in the dialog; or {@code null}
+	 * @param optionsSet options to set; see {@code FOS_*} constants
+	 * @param optionsClear options to clear; see {@code FOS_*} constants
+	 * @param callback approve callback; or {@code null}
+	 * @param fileTypeIndex the file type that appears as selected (zero-based)
+	 * @param fileTypes file types that the dialog can open or save.
+	 *        Two or more strings and {@code null} are required for each filter.
+	 *        First string is the display name of the filter shown in the combobox (e.g. "Text Files").
+	 *        Subsequent strings are the filter patterns (e.g. "*.txt" or "*").
+	 *        {@code null} is required to mark end of filter.
+	 * @return file path(s) that the user selected; an empty array if canceled;
+	 *         or {@code null} on failures (no dialog shown)
+	 *
+	 * @since 3.7
+	 */
+	public native static String[] showFileChooser( Window owner, int dark, boolean open,
+		String title, String okButtonLabel, String currentName, String currentFolder,
+		int optionsSet, int optionsClear, FileChooserCallback callback,
+		int fileTypeIndex, String... fileTypes );
+
+	/** @since 3.7 */
+	public interface FileChooserCallback {
+		boolean approve( String[] files, long hwndFileDialog );
+	}
+
+	/**
+	 * Shows a GTK message box
+	 * <a href="https://docs.gtk.org/gtk3/class.MessageDialog.html">GtkMessageDialog</a>.
+	 * <p>
+	 * For use in {@link FileChooserCallback} only.
+	 *
+	 * @param hwndParent the parent of the message box
+	 * @param messageType type of message being displayed:
+	 *        {@link JOptionPane#ERROR_MESSAGE}, {@link JOptionPane#INFORMATION_MESSAGE},
+	 *        {@link JOptionPane#WARNING_MESSAGE}, {@link JOptionPane#QUESTION_MESSAGE} or
+	 *        {@link JOptionPane#PLAIN_MESSAGE}
+	 * @param primaryText primary text; if the dialog has a secondary text,
+	 *        this will appear as title in a larger bold font
+	 * @param secondaryText secondary text; shown below of primary text; or {@code null}
+	 * @param defaultButton index of the default button, which can be pressed using ENTER key
+	 * @param buttons texts of the buttons; if no buttons given the a default "OK" button is shown.
+	 *        Use '_' for mnemonics (e.g. "_Choose")
+	 *        Use '__' for '_' character (e.g. "Choose__and__Quit").
+	 * @return index of pressed button; or -1 for ESC key
+	 *
+	 * @since 3.7
+	 */
+	public native static int showMessageDialog( long hwndParent, int messageType,
+		String primaryText, String secondaryText, int defaultButton, String... buttons );
 }

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatNativeMacLibrary.java

@@ -18,6 +18,7 @@ package com.formdev.flatlaf.ui;
 
 import java.awt.Rectangle;
 import java.awt.Window;
+import javax.swing.JOptionPane;
 import com.formdev.flatlaf.util.SystemInfo;
 
 /**
@@ -44,7 +45,7 @@ import com.formdev.flatlaf.util.SystemInfo;
  */
 public class FlatNativeMacLibrary
 {
-	private static int API_VERSION_MACOS = 2001;
+	private static int API_VERSION_MACOS = 2002;
 
 	/**
 	 * Checks whether native library is loaded/available.
@@ -68,4 +69,88 @@ public class FlatNativeMacLibrary
 	/** @since 3.4 */ public native static Rectangle getWindowButtonsBounds( Window window );
 	/** @since 3.4 */ public native static boolean isWindowFullScreen( Window window );
 	/** @since 3.4 */ public native static boolean toggleWindowFullScreen( Window window );
+
+
+	/** @since 3.7 */
+	public static final int
+		// NSOpenPanel (extends NSSavePanel)
+		FC_canChooseFiles					= 1 << 0,  // default
+		FC_canChooseDirectories				= 1 << 1,
+		FC_resolvesAliases					= 1 << 2,  // default
+		FC_allowsMultipleSelection			= 1 << 3,
+		FC_accessoryViewDisclosed			= 1 << 4,
+		// NSSavePanel
+		FC_showsTagField					= 1 << 8,  // default for Save
+		FC_canCreateDirectories				= 1 << 9,  // default for Save
+		FC_canSelectHiddenExtension			= 1 << 10,
+		FC_showsHiddenFiles					= 1 << 11,
+		FC_extensionHidden					= 1 << 12,
+		FC_allowsOtherFileTypes				= 1 << 13,
+		FC_treatsFilePackagesAsDirectories	= 1 << 14,
+		// custom
+		FC_showSingleFilterField			= 1 << 24;
+
+	/**
+	 * Shows the macOS system file dialogs
+	 * <a href="https://developer.apple.com/documentation/appkit/nsopenpanel?language=objc">NSOpenPanel</a> or
+	 * <a href="https://developer.apple.com/documentation/appkit/nssavepanel?language=objc">NSSavePanel</a>.
+	 * <p>
+	 * <b>Note:</b> This method blocks the current thread until the user closes
+	 * the file dialog. It is highly recommended to invoke it from a new thread
+	 * to avoid blocking the AWT event dispatching thread.
+	 *
+	 * @param owner the owner of the file dialog; or {@code null}
+	 * @param dark appearance of the file dialog: {@code 1} = dark, {@code 0} = light, {@code -1} = default
+	 * @param open if {@code true}, shows the open dialog; if {@code false}, shows the save dialog
+	 * @param title text displayed at top of save dialog (not used in open dialog); or {@code null}
+	 * @param prompt text displayed in default button; or {@code null}
+	 * @param message text displayed at top of open/save dialogs; or {@code null}
+	 * @param filterFieldLabel text displayed in front of the filter combobox; or {@code null}
+	 * @param nameFieldLabel text displayed in front of the filename text field in save dialog (not used in open dialog); or {@code null}
+	 * @param nameFieldStringValue user-editable filename currently shown in the name field in save dialog (not used in open dialog); or {@code null}
+	 * @param directoryURL current directory shown in the dialog; or {@code null}
+	 * @param optionsSet options to set; see {@code FC_*} constants
+	 * @param optionsClear options to clear; see {@code FC_*} constants
+	 * @param fileTypeIndex the file type that appears as selected (zero-based)
+	 * @param fileTypes file types that the dialog can open or save.
+	 *        Two or more strings and {@code null} are required for each filter.
+	 *        First string is the display name of the filter shown in the combobox (e.g. "Text Files").
+	 *        Subsequent strings are the filter patterns (e.g. "txt" or "*").
+	 *        {@code null} is required to mark end of filter.
+	 * @return file path(s) that the user selected; an empty array if canceled;
+	 *         or {@code null} on failures (no dialog shown)
+	 *
+	 * @since 3.7
+	 */
+	public native static String[] showFileChooser( Window owner, int dark, boolean open,
+		String title, String prompt, String message, String filterFieldLabel,
+		String nameFieldLabel, String nameFieldStringValue, String directoryURL,
+		int optionsSet, int optionsClear, FileChooserCallback callback,
+		int fileTypeIndex, String... fileTypes );
+
+	/** @since 3.7 */
+	public interface FileChooserCallback {
+		boolean approve( String[] files, long hwndFileDialog );
+	}
+
+	/**
+	 * Shows a macOS alert
+	 * <a href="https://developer.apple.com/documentation/appkit/nsalert?language=objc">NSAlert</a>.
+	 * <p>
+	 * For use in {@link FileChooserCallback} only.
+	 *
+	 * @param hwndParent the parent of the message box
+	 * @param alertStyle type of alert being displayed:
+	 *        {@link JOptionPane#ERROR_MESSAGE}, {@link JOptionPane#INFORMATION_MESSAGE} or
+	 *        {@link JOptionPane#WARNING_MESSAGE}
+	 * @param messageText main message of the alert
+	 * @param informativeText additional information about the alert; shown below of main message; or {@code null}
+	 * @param defaultButton index of the default button, which can be pressed using ENTER key
+	 * @param buttons texts of the buttons; if no buttons given the a default "OK" button is shown
+	 * @return index of pressed button
+	 *
+	 * @since 3.7
+	 */
+	public native static int showMessageDialog( long hwndParent, int alertStyle,
+		String messageText, String informativeText, int defaultButton, String... buttons );
 }

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatNativeWindowsLibrary.java

@@ -18,6 +18,7 @@ package com.formdev.flatlaf.ui;
 
 import java.awt.Color;
 import java.awt.Window;
+import javax.swing.JOptionPane;
 import com.formdev.flatlaf.util.SystemInfo;
 
 /**
@@ -30,7 +31,7 @@ import com.formdev.flatlaf.util.SystemInfo;
  */
 public class FlatNativeWindowsLibrary
 {
-	private static int API_VERSION_WINDOWS = 1001;
+	private static int API_VERSION_WINDOWS = 1002;
 
 	private static long osBuildNumber = Long.MIN_VALUE;
 
@@ -158,4 +159,125 @@ public class FlatNativeWindowsLibrary
 		// DwmSetWindowAttribute() expects COLORREF as attribute value, which is defined as DWORD
 		return dwmSetWindowAttributeDWORD( hwnd, attribute, rgb );
 	}
+
+
+	/**
+	 * FILEOPENDIALOGOPTIONS
+	 * see https://learn.microsoft.com/en-us/windows/win32/api/shobjidl_core/ne-shobjidl_core-_fileopendialogoptions
+	 *
+	 * @since 3.7
+	 */
+	public static final int
+		FOS_OVERWRITEPROMPT = 0x2,		// default for Save
+		FOS_STRICTFILETYPES = 0x4,
+		FOS_NOCHANGEDIR = 0x8,			// default
+		FOS_PICKFOLDERS = 0x20,
+		FOS_FORCEFILESYSTEM = 0x40,
+		FOS_ALLNONSTORAGEITEMS = 0x80,
+		FOS_NOVALIDATE = 0x100,
+		FOS_ALLOWMULTISELECT = 0x200,
+		FOS_PATHMUSTEXIST = 0x800,		// default
+		FOS_FILEMUSTEXIST = 0x1000,		// default for Open
+		FOS_CREATEPROMPT = 0x2000,
+		FOS_SHAREAWARE = 0x4000,
+		FOS_NOREADONLYRETURN = 0x8000,	// default for Save
+		FOS_NOTESTFILECREATE = 0x10000,
+		FOS_HIDEMRUPLACES = 0x20000,
+		FOS_HIDEPINNEDPLACES = 0x40000,
+		FOS_NODEREFERENCELINKS = 0x100000,
+		FOS_OKBUTTONNEEDSINTERACTION = 0x200000,
+		FOS_DONTADDTORECENT = 0x2000000,
+		FOS_FORCESHOWHIDDEN = 0x10000000,
+		FOS_DEFAULTNOMINIMODE = 0x20000000,
+		FOS_FORCEPREVIEWPANEON = 0x40000000,
+		FOS_SUPPORTSTREAMABLEITEMS = 0x80000000;
+
+	/**
+	 * Shows the Windows system
+	 * <a href="https://learn.microsoft.com/en-us/windows/win32/shell/common-file-dialog">file dialogs</a>
+	 * <a href="https://learn.microsoft.com/en-us/windows/win32/api/shobjidl_core/nn-shobjidl_core-ifileopendialog">IFileOpenDialog</a> or
+	 * <a href="https://learn.microsoft.com/en-us/windows/win32/api/shobjidl_core/nn-shobjidl_core-ifilesavedialog">IFileSaveDialog</a>.
+	 * <p>
+	 * <b>Note:</b> This method blocks the current thread until the user closes
+	 * the file dialog. It is highly recommended to invoke it from a new thread
+	 * to avoid blocking the AWT event dispatching thread.
+	 *
+	 * @param owner the owner of the file dialog; or {@code null}
+	 * @param open if {@code true}, shows the open dialog; if {@code false}, shows the save dialog
+	 * @param title text displayed in dialog title; or {@code null}
+	 * @param okButtonLabel text displayed in default button; or {@code null}.
+	 *        Use '&amp;' for mnemonics (e.g. "&amp;Choose").
+	 *        Use '&amp;&amp;' for '&amp;' character (e.g. "Choose &amp;&amp; Quit").
+	 * @param fileNameLabel text displayed in front of the filename text field; or {@code null}
+	 * @param fileName user-editable filename currently shown in the filename field; or {@code null}
+	 * @param folder current directory shown in the dialog; or {@code null}
+	 * @param saveAsItem file to be used as the initial entry in a Save As dialog; or {@code null}.
+	 *        File name is shown in filename text field, folder is selected in view.
+	 *        To be used for saving files that already exist. For new files use {@code fileName}.
+	 * @param defaultFolder folder used as a default if there is not a recently used folder value available; or {@code null}.
+	 *        Windows somewhere stores default folder on a per-app basis.
+	 *        So this is probably used only once when the app opens a file dialog for first time.
+	 * @param defaultExtension default extension to be added to file name in save dialog; or {@code null}
+	 * @param optionsSet options to set; see {@code FOS_*} constants
+	 * @param optionsClear options to clear; see {@code FOS_*} constants
+	 * @param callback approve callback; or {@code null}
+	 * @param fileTypeIndex the file type that appears as selected (zero-based)
+	 * @param fileTypes file types that the dialog can open or save.
+	 *        Pairs of strings are required for each filter.
+	 *        First string is the display name of the filter shown in the combobox (e.g. "Text Files").
+	 *        Second string is the filter pattern (e.g. "*.txt", "*.exe;*.dll" or "*.*").
+	 * @return file path(s) that the user selected; an empty array if canceled;
+	 *         or {@code null} on failures (no dialog shown)
+	 *
+	 * @since 3.7
+	 */
+	public native static String[] showFileChooser( Window owner, boolean open,
+		String title, String okButtonLabel, String fileNameLabel, String fileName,
+		String folder, String saveAsItem, String defaultFolder, String defaultExtension,
+		int optionsSet, int optionsClear, FileChooserCallback callback,
+		int fileTypeIndex, String... fileTypes );
+
+	/** @since 3.7 */
+	public interface FileChooserCallback {
+		boolean approve( String[] files, long hwndFileDialog );
+	}
+
+	/**
+	 * Shows a modal Windows message dialog.
+	 * <p>
+	 * For use in {@link FileChooserCallback} only.
+	 *
+	 * @param hwndParent the parent of the message box
+	 * @param messageType type of message being displayed:
+	 *        {@link JOptionPane#ERROR_MESSAGE}, {@link JOptionPane#INFORMATION_MESSAGE},
+	 *        {@link JOptionPane#WARNING_MESSAGE}, {@link JOptionPane#QUESTION_MESSAGE} or
+	 *        {@link JOptionPane#PLAIN_MESSAGE}
+	 * @param title dialog box title; or {@code null} to use title from parent window
+	 * @param text message to be displayed
+	 * @param defaultButton index of the default button, which can be pressed using ENTER key
+	 * @param buttons texts of the buttons.
+	 *        Use '&amp;' for mnemonics (e.g. "&amp;Choose").
+	 *        Use '&amp;&amp;' for '&amp;' character (e.g. "Choose &amp;&amp; Quit").
+	 * @return index of pressed button; or -1 for ESC key
+	 *
+	 * @since 3.7
+	 */
+	public native static int showMessageDialog( long hwndParent, int messageType,
+		String title, String text, int defaultButton, String... buttons );
+
+	/**
+	 * Shows a Windows message box
+	 * <a href="https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-messagebox">MessageBox</a>.
+	 * <p>
+	 * For use in {@link FileChooserCallback} only.
+	 *
+	 * @param hwndParent the parent of the message box
+	 * @param text message to be displayed
+	 * @param caption dialog box title
+	 * @param type see <a href="https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-messagebox#parameters">MessageBox parameter uType</a>
+	 * @return see <a href="https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-messagebox#return-value">MessageBox Return value</a>
+	 *
+	 * @since 3.7
+	 */
+	public native static int showMessageBox( long hwndParent, String text, String caption, int type );
 }

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatPasswordFieldUI.java

@@ -16,7 +16,6 @@
 
 package com.formdev.flatlaf.ui;
 
-import java.awt.Color;
 import java.awt.Graphics;
 import java.awt.Rectangle;
 import java.awt.Toolkit;
@@ -41,8 +40,8 @@ import javax.swing.text.JTextComponent;
 import javax.swing.text.PasswordView;
 import javax.swing.text.View;
 import com.formdev.flatlaf.FlatClientProperties;
-import com.formdev.flatlaf.icons.FlatCapsLockIcon;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableObject;
 import com.formdev.flatlaf.util.HiDPIUtils;
 import com.formdev.flatlaf.util.UIScale;
 
@@ -215,12 +214,12 @@ public class FlatPasswordFieldUI
 	/** @since 2 */
 	@Override
 	protected Object applyStyleProperty( String key, Object value ) {
-		if( key.equals( "capsLockIconColor" ) && capsLockIcon instanceof FlatCapsLockIcon ) {
+		if( key.startsWith( "capsLockIcon" ) && capsLockIcon instanceof StyleableObject ) {
 			if( capsLockIconShared ) {
 				capsLockIcon = FlatStylingSupport.cloneIcon( capsLockIcon );
 				capsLockIconShared = false;
 			}
-			return ((FlatCapsLockIcon)capsLockIcon).applyStyleProperty( key, value );
+			return ((StyleableObject)capsLockIcon).applyStyleProperty( key, value );
 		}
 
 		return super.applyStyleProperty( key, value );
@@ -230,14 +229,15 @@ public class FlatPasswordFieldUI
 	@Override
 	public Map<String, Class<?>> getStyleableInfos( JComponent c ) {
 		Map<String, Class<?>> infos = super.getStyleableInfos( c );
-		infos.put( "capsLockIconColor", Color.class );
+		if( capsLockIcon instanceof StyleableObject )
+			infos.putAll( ((StyleableObject)capsLockIcon).getStyleableInfos() );
 		return infos;
 	}
 
 	@Override
 	public Object getStyleableValue( JComponent c, String key ) {
-		if( key.equals( "capsLockIconColor" ) && capsLockIcon instanceof FlatCapsLockIcon )
-			return ((FlatCapsLockIcon)capsLockIcon).getStyleableValue( key );
+		if( key.startsWith( "capsLockIcon" ) && capsLockIcon instanceof StyleableObject )
+			return ((StyleableObject)capsLockIcon).getStyleableValue( key );
 
 		return super.getStyleableValue( c, key );
 	}

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatPopupFactory.java

@@ -32,7 +32,6 @@ import java.awt.Panel;
 import java.awt.Point;
 import java.awt.PointerInfo;
 import java.awt.Rectangle;
-import java.awt.Toolkit;
 import java.awt.Window;
 import java.awt.event.ComponentEvent;
 import java.awt.event.ComponentListener;
@@ -109,10 +108,8 @@ public class FlatPopupFactory
 			}
 		}
 
-		boolean forceHeavyWeight = isOptionEnabled( owner, contents, FlatClientProperties.POPUP_FORCE_HEAVY_WEIGHT, "Popup.forceHeavyWeight" );
-
 		if( !isOptionEnabled( owner, contents, FlatClientProperties.POPUP_DROP_SHADOW_PAINTED, "Popup.dropShadowPainted" ) || SystemInfo.isProjector || SystemInfo.isWebswing )
-			return new NonFlashingPopup( getPopupForScreenOfOwner( owner, contents, x, y, forceHeavyWeight ), owner, contents );
+			return new NonFlashingPopup( getPopupForScreenOfOwner( owner, contents, x, y, isForceHeavyWeight( owner, contents, x, y ) ), owner, contents );
 
 		// macOS and Linux adds drop shadow to heavy weight popups
 		if( SystemInfo.isMacOS || SystemInfo.isLinux ) {
@@ -132,13 +129,9 @@ public class FlatPopupFactory
 			return popup;
 		}
 
-		// check whether popup overlaps a heavy weight component
-		if( !forceHeavyWeight && overlapsHeavyWeightComponent( owner, contents, x, y ) )
-			forceHeavyWeight = true;
-
 		// create drop shadow popup
-		Popup popupForScreenOfOwner = getPopupForScreenOfOwner( owner, contents, x, y, forceHeavyWeight );
-		GraphicsConfiguration gc = owner.getGraphicsConfiguration();
+		Popup popupForScreenOfOwner = getPopupForScreenOfOwner( owner, contents, x, y, isForceHeavyWeight( owner, contents, x, y ) );
+		GraphicsConfiguration gc = (owner != null) ? owner.getGraphicsConfiguration() : null;
 		return (gc != null && gc.isTranslucencyCapable())
 			? new DropShadowPopup( popupForScreenOfOwner, owner, contents )
 			: new NonFlashingPopup( popupForScreenOfOwner, owner, contents );
@@ -227,6 +220,11 @@ public class FlatPopupFactory
 		}
 	}
 
+	private static boolean isForceHeavyWeight( Component owner, Component contents, int x, int y ) {
+		boolean forceHeavyWeight = isOptionEnabled( owner, contents, FlatClientProperties.POPUP_FORCE_HEAVY_WEIGHT, "Popup.forceHeavyWeight" );
+		return forceHeavyWeight || hasVisibleGlassPane( owner ) || overlapsHeavyWeightComponent( owner, contents, x, y );
+	}
+
 	private static boolean isOptionEnabled( Component owner, Component contents, String clientKey, String uiKey ) {
 		Object value = getOption( owner, contents, clientKey, uiKey );
 		return (value instanceof Boolean) ? (Boolean) value : false;
@@ -306,13 +304,13 @@ public class FlatPopupFactory
 				break;
 			}
 		}
-		if( gc == null )
+		if( gc == null && owner != null )
 			gc = owner.getGraphicsConfiguration();
 		if( gc == null )
 			return null;
 
 		Rectangle screenBounds = gc.getBounds();
-		Insets screenInsets = Toolkit.getDefaultToolkit().getScreenInsets( gc );
+		Insets screenInsets = FlatUIUtils.getScreenInsets( gc );
 		int screenTop = screenBounds.y + screenInsets.top;
 
 		// place tooltip above mouse location if there is enough space
@@ -365,14 +363,8 @@ public class FlatPopupFactory
 	}
 
 	private static boolean isMacOSBorderSupported() {
-		// do not use rounded border on macOS 14.4+ because it may freeze the application
-		// and crash the macOS WindowServer process (reports vary from Finder restarts to OS restarts)
-		// https://github.com/apache/netbeans/issues/7560#issuecomment-2226439215
-		// https://github.com/apache/netbeans/issues/6647#issuecomment-2070124442
-		boolean isMacOS_14_4_orLater = (SystemInfo.osVersion >= SystemInfo.toVersion( 14, 4, 0, 0 ));
-
 		return SystemInfo.isMacOS &&
-			FlatSystemProperties.getBoolean( FlatSystemProperties.USE_ROUNDED_POPUP_BORDER, !isMacOS_14_4_orLater ) &&
+			FlatSystemProperties.getBoolean( FlatSystemProperties.USE_ROUNDED_POPUP_BORDER, true ) &&
 			FlatNativeMacLibrary.isLoaded();
 	}
 
@@ -476,6 +468,18 @@ public class FlatPopupFactory
 
 	//---- fixes --------------------------------------------------------------
 
+	private static boolean hasVisibleGlassPane( Component owner ) {
+		if( owner == null )
+			return false;
+
+		Window window = SwingUtilities.windowForComponent( owner );
+		if( !(window instanceof RootPaneContainer) )
+			return false;
+
+		Component glassPane = ((RootPaneContainer)window).getGlassPane();
+		return (glassPane != null && glassPane.isVisible());
+	}
+
 	private static boolean overlapsHeavyWeightComponent( Component owner, Component contents, int x, int y ) {
 		if( owner == null )
 			return false;
@@ -553,7 +557,15 @@ public class FlatPopupFactory
 			int x = popupWindow.getX();
 			int y = popupWindow.getY();
 
-			popup.show();
+			if( !popupWindow.isVisible() )
+				popup.show();
+			else {
+				// if the popup window is already visible (because it is reused),
+				// do not invoke Popup.show() because this would invoke Window.toFront(),
+				// which may have the side effect that an inactive owner window
+				// would be also moved to front and maybe hide previously active window
+				popupWindow.pack();
+			}
 
 			// restore popup window location if it has changed
 			// (probably scaled when screens use different scale factors)
@@ -625,7 +637,30 @@ public class FlatPopupFactory
 
 		void showImpl() {
 			if( delegate != null ) {
-				showPopupAndFixLocation( delegate, popupWindow );
+				// On macOS and Linux, the empty popup window is shown in popup.show()
+				// (in peer.setVisible(true) invoked from Component.show()),
+				// but the popup content is painted later via repaint manager.
+				// This may cause some flicker, especially during JVM warm-up or
+				// when running JVM in interpreter mode (option -Xint).
+				// To reduce flicker, immediately paint popup content as soon as popup window becomes visible.
+				// This also fixes a problem with JetBrainsRuntime JVM, where sometimes the popups were empty.
+				if( (SystemInfo.isMacOS || SystemInfo.isLinux) && popupWindow instanceof JWindow ) {
+					HierarchyListener l = e -> {
+						if( e.getID() == HierarchyEvent.HIERARCHY_CHANGED &&
+							(e.getChangeFlags() & HierarchyEvent.SHOWING_CHANGED) != 0 )
+						{
+							((JWindow)popupWindow).getRootPane().paintImmediately(
+								0, 0, popupWindow.getWidth(), popupWindow.getHeight() );
+						}
+					};
+					popupWindow.addHierarchyListener( l );
+					try {
+						showPopupAndFixLocation( delegate, popupWindow );
+					} finally {
+						popupWindow.removeHierarchyListener( l );
+					}
+				} else
+					showPopupAndFixLocation( delegate, popupWindow );
 
 				// increase tooltip size if necessary because it may be too small on HiDPI screens
 				//    https://bugs.openjdk.java.net/browse/JDK-8213535
@@ -652,8 +687,11 @@ public class FlatPopupFactory
 				return;
 			disposed = true;
 
-			// immediately hide non-heavy weight popups or combobox popups
-			if( !(popupWindow instanceof JWindow) || contents instanceof BasicComboPopup ) {
+			// immediately hide non-heavy weight popups, popup menus and combobox popups
+			// of if system property is false
+			if( !(popupWindow instanceof JWindow) || contents instanceof JPopupMenu ||
+				!FlatSystemProperties.getBoolean( FlatSystemProperties.REUSE_VISIBLE_POPUP_WINDOW, true ) )
+			{
 				hideImpl();
 				return;
 			}
@@ -684,6 +722,21 @@ public class FlatPopupFactory
 				// restore background so that it can not affect other LaFs (when switching)
 				// because popup windows are cached and reused
 				popupWindow.setBackground( oldPopupWindowBackground );
+
+				// On macOS, popupWindow.setBackground(...) invoked from constructor,
+				// has no affect if the popup window peer (a NSWindow) is already created,
+				// which is the case when reusing a cached popup window
+				// (see class PopupFactory.HeavyWeightPopup).
+				// This may result in flicker when e.g. showing a popup in a light theme,
+				// then switching to a dark theme and again showing a popup,
+				// because the underling NSWindow still has a light background,
+				// which may be shown shortly before the actual dark popup content is shown.
+				// To fix this, dispose the popup window, which disposes the NSWindow.
+				// The AWT popup window stays in the popup cache, but when reusing it later,
+				// a new peer and a new NSWindow is created and gets the correct background.
+				if( SystemInfo.isMacOS )
+					popupWindow.dispose();
+
 				popupWindow = null;
 			}
 		}
@@ -715,6 +768,7 @@ public class FlatPopupFactory
 
 	private class DropShadowPopup
 		extends NonFlashingPopup
+		implements ComponentListener
 	{
 		// light weight
 		private JComponent lightComp;
@@ -774,7 +828,7 @@ public class FlatPopupFactory
 				}
 
 				// Windows 11: reset corner preference on reused heavy weight popups
-				if( isWindows11BorderSupported() ) {
+				if( SystemInfo.isWindows_11_orLater && FlatNativeWindowsLibrary.isLoaded() ) {
 					resetWindows11Border( popupWindow );
 					if( dropShadowWindow != null )
 						resetWindows11Border( dropShadowWindow );
@@ -844,10 +898,18 @@ public class FlatPopupFactory
 				if( insets.left != 0 || insets.top != 0 )
 					lightComp.setLocation( lightComp.getX() - insets.left, lightComp.getY() - insets.top );
 			}
+
+			if( popupWindow != null ) {
+				removeAllPopupWindowComponentListeners();
+				popupWindow.addComponentListener( this );
+			}
 		}
 
 		@Override
 		void hideImpl() {
+			if( popupWindow != null )
+				removeAllPopupWindowComponentListeners();
+
 			if( dropShadowDelegate != null ) {
 				dropShadowDelegate.hide();
 				dropShadowDelegate = null;
@@ -947,23 +1009,55 @@ public class FlatPopupFactory
 
 		@Override
 		void reset( Component contents, int ownerX, int ownerY ) {
+			if( popupWindow != null )
+				removeAllPopupWindowComponentListeners();
+
 			super.reset( contents, ownerX, ownerY );
 
-			if( dropShadowWindow != null ) {
-				// set preferred size of drop shadow panel
-				Dimension prefSize = popupWindow.getPreferredSize();
-				Insets insets = dropShadowPanel2.getInsets();
-				int w = prefSize.width + insets.left + insets.right;
-				int h = prefSize.height + insets.top + insets.bottom;
-				dropShadowPanel2.setPreferredSize( new Dimension( w, h ) );
-				dropShadowPanel2.invalidate();
-				dropShadowWindow.pack();
+			updateDropShadowWindowBounds();
+		}
 
-				// update drop shadow popup window location
-				int x = popupWindow.getX() - insets.left;
-				int y = popupWindow.getY() - insets.top;
-				dropShadowWindow.setLocation( x, y );
+		private void updateDropShadowWindowBounds() {
+			if( dropShadowWindow == null )
+				return;
+
+			// calculate size of drop shadow window
+			Dimension size = popupWindow.getSize();
+			Insets insets = dropShadowPanel2.getInsets();
+			int w = size.width + insets.left + insets.right;
+			int h = size.height + insets.top + insets.bottom;
+
+			// update drop shadow popup window bounds
+			int x = popupWindow.getX() - insets.left;
+			int y = popupWindow.getY() - insets.top;
+			dropShadowWindow.setBounds( x, y, w, h );
+			dropShadowWindow.validate();
+		}
+
+		private void removeAllPopupWindowComponentListeners() {
+			// make sure that there is no old component listener
+			// necessary because this class is cloned if reusing popup windows
+			for( ComponentListener l : popupWindow.getComponentListeners() ) {
+				if( l instanceof DropShadowPopup )
+					popupWindow.removeComponentListener( l );
 			}
 		}
+
+		//---- interface ComponentListener ----
+
+		@Override
+		public void componentResized( ComponentEvent e ) {
+			if( e.getSource() == popupWindow )
+				updateDropShadowWindowBounds();
+		}
+
+		@Override
+		public void componentMoved( ComponentEvent e ) {
+			if( e.getSource() == popupWindow )
+				updateDropShadowWindowBounds();
+		}
+
+		@Override public void componentShown( ComponentEvent e ) {}
+		@Override public void componentHidden( ComponentEvent e ) {}
 	}
 }

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatPopupMenuBorder.java

@@ -23,7 +23,7 @@ import java.awt.Insets;
 import java.util.Map;
 import javax.swing.JScrollPane;
 import javax.swing.UIManager;
-import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableBorder;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableObject;
 import com.formdev.flatlaf.ui.FlatStylingSupport.UnknownStyleException;
 import com.formdev.flatlaf.util.UIScale;
 
@@ -37,7 +37,7 @@ import com.formdev.flatlaf.util.UIScale;
  */
 public class FlatPopupMenuBorder
 	extends FlatLineBorder
-	implements StyleableBorder
+	implements StyleableObject
 {
 	private Color borderColor;
 

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatPopupMenuUI.java

@@ -246,7 +246,7 @@ public class FlatPopupMenuUI
 		// (always subtract screen insets because there is no API to detect whether
 		// the popup can overlap the taskbar; see JPopupMenu.canPopupOverlapTaskBar())
 		Rectangle screenBounds = gc.getBounds();
-		Insets screenInsets = Toolkit.getDefaultToolkit().getScreenInsets( gc );
+		Insets screenInsets = FlatUIUtils.getScreenInsets( gc );
 		return FlatUIUtils.subtractInsets( screenBounds, screenInsets );
 	}
 

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatRadioButtonUI.java

@@ -45,6 +45,7 @@ import javax.swing.plaf.basic.BasicRadioButtonUI;
 import com.formdev.flatlaf.FlatClientProperties;
 import com.formdev.flatlaf.icons.FlatCheckBoxIcon;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableObject;
 import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableUI;
 import com.formdev.flatlaf.ui.FlatStylingSupport.UnknownStyleException;
 import com.formdev.flatlaf.util.HiDPIUtils;
@@ -203,16 +204,17 @@ public class FlatRadioButtonUI
 	protected Object applyStyleProperty( AbstractButton b, String key, Object value ) {
 		// style icon
 		if( key.startsWith( "icon." ) ) {
-			if( !(icon instanceof FlatCheckBoxIcon) )
-				return new UnknownStyleException( key );
+			Icon icon = getRealIcon( b );
+			if( !(icon instanceof StyleableObject) )
+				throw new UnknownStyleException( key );
 
-			if( iconShared ) {
-				icon = FlatStylingSupport.cloneIcon( icon );
+			if( icon == this.icon && iconShared ) {
+				this.icon = icon = FlatStylingSupport.cloneIcon( icon );
 				iconShared = false;
 			}
 
 			key = key.substring( "icon.".length() );
-			return ((FlatCheckBoxIcon)icon).applyStyleProperty( key, value );
+			return ((StyleableObject)icon).applyStyleProperty( key, value );
 		}
 
 		if( "iconTextGap".equals( key ) && value instanceof Integer )
@@ -225,10 +227,9 @@ public class FlatRadioButtonUI
 	@Override
 	public Map<String, Class<?>> getStyleableInfos( JComponent c ) {
 		Map<String, Class<?>> infos = FlatStylingSupport.getAnnotatedStyleableInfos( this );
-		if( icon instanceof FlatCheckBoxIcon ) {
-			for( Map.Entry<String, Class<?>> e : ((FlatCheckBoxIcon)icon).getStyleableInfos().entrySet() )
-				infos.put( "icon.".concat( e.getKey() ), e.getValue() );
-		}
+		Icon icon = getRealIcon( c );
+		if( icon instanceof StyleableObject )
+			FlatStylingSupport.putAllPrefixKey( infos, "icon.", ((StyleableObject)icon).getStyleableInfos() );
 		return infos;
 	}
 
@@ -237,8 +238,9 @@ public class FlatRadioButtonUI
 	public Object getStyleableValue( JComponent c, String key ) {
 		// style icon
 		if( key.startsWith( "icon." ) ) {
-			return (icon instanceof FlatCheckBoxIcon)
-				? ((FlatCheckBoxIcon)icon).getStyleableValue( key.substring( "icon.".length() ) )
+			Icon icon = getRealIcon( c );
+			return (icon instanceof StyleableObject)
+				? ((StyleableObject)icon).getStyleableValue( key.substring( "icon.".length() ) )
 				: null;
 		}
 
@@ -332,16 +334,18 @@ public class FlatRadioButtonUI
 	}
 
 	private int getIconFocusWidth( JComponent c ) {
-		AbstractButton b = (AbstractButton) c;
-		Icon icon = b.getIcon();
-		if( icon == null )
-			icon = getDefaultIcon();
-
+		Icon icon = getRealIcon( c );
 		return (icon instanceof FlatCheckBoxIcon)
 			? Math.round( UIScale.scale( ((FlatCheckBoxIcon)icon).getFocusWidth() ) )
 			: 0;
 	}
 
+	private Icon getRealIcon( JComponent c ) {
+		AbstractButton b = (AbstractButton) c;
+		Icon icon = b.getIcon();
+		return (icon != null) ? icon : getDefaultIcon();
+	}
+
 	@Override
 	public int getBaseline( JComponent c, int width, int height ) {
 		return FlatButtonUI.getBaselineImpl( c, width, height );

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatRootPaneUI.java

@@ -20,6 +20,7 @@ import java.awt.Color;
 import java.awt.Component;
 import java.awt.Container;
 import java.awt.Dimension;
+import java.awt.EventQueue;
 import java.awt.Frame;
 import java.awt.Graphics;
 import java.awt.Graphics2D;
@@ -31,6 +32,7 @@ import java.awt.Window;
 import java.awt.event.ComponentListener;
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
+import java.util.Objects;
 import java.util.function.Function;
 import javax.swing.JComponent;
 import javax.swing.JDialog;
@@ -152,8 +154,28 @@ public class FlatRootPaneUI
 		Container parent = c.getParent();
 		if( parent instanceof JFrame || parent instanceof JDialog ) {
 			Color background = parent.getBackground();
-			if( background == null || background instanceof UIResource )
-				parent.setBackground( UIManager.getColor( "control" ) );
+			if( background == null || background instanceof UIResource ) {
+				if( SystemInfo.isMacOS ) {
+					// Setting window background on macOS immediately fills the whole window
+					// with that color, and slightly delayed, the Swing repaint manager
+					// repaints the actual window content. This results in some flashing
+					// when switching from a light to a dark theme (or vice versa).
+					// --> delay setting window background and immediately repaint window content
+					Runnable r = () -> {
+						parent.setBackground( UIManager.getColor( "control" ) );
+						c.paintImmediately( 0, 0, c.getWidth(), c.getHeight() );
+					};
+
+					// for class FlatAnimatedLafChange:
+					// if animated Laf change is in progress, set background color when
+					// animation has finished to avoid/reduce flashing
+					if( c.getClientProperty( "FlatLaf.internal.animatedLafChange" ) != null )
+						c.putClientProperty( "FlatLaf.internal.animatedLafChange.runWhenFinished", r );
+					else
+						EventQueue.invokeLater( r );
+				} else
+					parent.setBackground( UIManager.getColor( "control" ) );
+			}
 		}
 
 		macClearBackgroundForTranslucentWindow( c );
@@ -485,8 +507,12 @@ public class FlatRootPaneUI
 				break;
 
 			case "ancestor":
-				if( e.getNewValue() instanceof Window )
+				if( e.getNewValue() instanceof Window ) {
+					if( titlePane != null && !Objects.equals( titlePane.windowStyle, FlatTitlePane.getWindowStyle( rootPane ) ) )
+						setTitlePane( createTitlePane() );
+
 					macClearBackgroundForTranslucentWindow( rootPane );
+				}
 
 				macUninstallWindowBackgroundListener( rootPane );
 				macInstallWindowBackgroundListener( rootPane );
@@ -684,7 +710,7 @@ public class FlatRootPaneUI
 	 * Window border used for non-native window decorations.
 	 */
 	public static class FlatWindowBorder
-		extends BorderUIResource.EmptyBorderUIResource
+		extends FlatEmptyBorder
 	{
 		protected final Color activeBorderColor = UIManager.getColor( "RootPane.activeBorderColor" );
 		protected final Color inactiveBorderColor = UIManager.getColor( "RootPane.inactiveBorderColor" );
@@ -717,7 +743,10 @@ public class FlatRootPaneUI
 		}
 
 		private void paintImpl( Graphics2D g, int x, int y, int width, int height, double scaleFactor ) {
-			g.drawRect( x, y, width - 1, height - 1 );
+			Object[] oldRenderingHints = FlatUIUtils.setRenderingHints( g );
+			float lineWidth = (float) (UIScale.scale( 1f ) * scaleFactor);
+			g.fill( FlatUIUtils.createRectangle( x, y, width, height, lineWidth ) );
+			FlatUIUtils.resetRenderingHints( g, oldRenderingHints );
 		}
 
 		protected boolean isWindowMaximized( Component c ) {

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatSliderUI.java

@@ -227,7 +227,13 @@ public class FlatSliderUI
 
 	/** @since 2 */
 	protected void applyStyle( Object style ) {
+		Dimension oldThumbSize = thumbSize;
+		int oldFocusWidth = focusWidth;
+
 		oldStyleValues = FlatStylingSupport.parseAndApply( oldStyleValues, style, this::applyStyleProperty );
+
+		if( !thumbSize.equals( oldThumbSize ) || focusWidth != oldFocusWidth )
+			calculateGeometry();
 	}
 
 	/** @since 2 */

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatSpinnerUI.java

@@ -140,8 +140,6 @@ public class FlatSpinnerUI
 		buttonHoverArrowColor = UIManager.getColor( "Spinner.buttonHoverArrowColor" );
 		buttonPressedArrowColor = UIManager.getColor( "Spinner.buttonPressedArrowColor" );
 		padding = UIManager.getInsets( "Spinner.padding" );
-
-		MigLayoutVisualPadding.install( spinner );
 	}
 
 	@Override
@@ -162,8 +160,6 @@ public class FlatSpinnerUI
 
 		oldStyleValues = null;
 		borderShared = null;
-
-		MigLayoutVisualPadding.uninstall( spinner );
 	}
 
 	@Override
@@ -173,6 +169,8 @@ public class FlatSpinnerUI
 		addEditorFocusListener( spinner.getEditor() );
 		spinner.addFocusListener( getHandler() );
 		spinner.addPropertyChangeListener( getHandler() );
+
+		MigLayoutVisualPadding.install( spinner );
 	}
 
 	@Override
@@ -184,6 +182,8 @@ public class FlatSpinnerUI
 		spinner.removePropertyChangeListener( getHandler() );
 
 		handler = null;
+
+		MigLayoutVisualPadding.uninstall( spinner );
 	}
 
 	private Handler getHandler() {

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatStylingSupport.java

@@ -42,7 +42,6 @@ import com.formdev.flatlaf.FlatClientProperties;
 import com.formdev.flatlaf.FlatLaf;
 import com.formdev.flatlaf.util.HiDPIUtils;
 import com.formdev.flatlaf.util.StringUtils;
-import com.formdev.flatlaf.util.SystemInfo;
 
 /**
  * Support for styling components in CSS syntax.
@@ -52,6 +51,9 @@ import com.formdev.flatlaf.util.SystemInfo;
  */
 public class FlatStylingSupport
 {
+
+	//---- annotations --------------------------------------------------------
+
 	/**
 	 * Indicates that a field is intended to be used by FlatLaf styling support.
 	 * <p>
@@ -99,17 +101,56 @@ public class FlatStylingSupport
 	}
 
 
+	//---- interfaces ---------------------------------------------------------
+
 	/** @since 2 */
 	public interface StyleableUI {
 		Map<String, Class<?>> getStyleableInfos( JComponent c ) throws IllegalArgumentException;
 		/** @since 2.5 */ Object getStyleableValue( JComponent c, String key ) throws IllegalArgumentException;
 	}
 
-	/** @since 2 */
-	public interface StyleableBorder {
-		Object applyStyleProperty( String key, Object value );
-		Map<String, Class<?>> getStyleableInfos() throws IllegalArgumentException;
-		/** @since 2.5 */ Object getStyleableValue( String key ) throws IllegalArgumentException;
+	/**
+	 * An object that implements this interface is intended to support FlatLaf styling.
+	 *
+	 * @since 3.7
+	 */
+	public interface StyleableObject {
+		/**
+		 * Applies the given value to this object.
+		 * <p>
+		 * The default implementation invokes {@link FlatStylingSupport#applyToAnnotatedObject(Object, String, Object)}.
+		 *
+		 * @param key the name of the property
+		 * @param value the new value
+		 * @return the old value of the property
+		 */
+		default Object applyStyleProperty( String key, Object value )
+			throws UnknownStyleException, IllegalArgumentException
+		{
+			return applyToAnnotatedObject( this, key, value );
+		}
+
+		/**
+		 * Returns a map of all styleable properties.
+		 * The key is the name of the property and the value the type of the property.
+		 * <p>
+		 * The default implementation invokes {@link FlatStylingSupport#getAnnotatedStyleableInfos(Object)}.
+		 */
+		default Map<String, Class<?>> getStyleableInfos() throws IllegalArgumentException {
+			return getAnnotatedStyleableInfos( this );
+		}
+
+		/**
+		 * Returns the current value for the given property key.
+		 * <p>
+		 * The default implementation invokes {@link FlatStylingSupport#getAnnotatedStyleableValue(Object, String)}.
+		 *
+		 * @param key the name of the property
+		 * @return the current value of the property
+		 */
+		default Object getStyleableValue( String key ) throws IllegalArgumentException {
+			return getAnnotatedStyleableValue( this, key );
+		}
 	}
 
 	/** @since 2.5 */
@@ -118,6 +159,8 @@ public class FlatStylingSupport
 	}
 
 
+	//---- methods ------------------------------------------------------------
+
 	/**
 	 * Returns the style specified in client property {@link FlatClientProperties#STYLE}.
 	 */
@@ -325,22 +368,24 @@ public class FlatStylingSupport
 			return null;
 
 		Map<String, Object> oldValues = new HashMap<>();
+		outer:
 		for( Map.Entry<String, Object> e : style.entrySet() ) {
 			String key = e.getKey();
 			Object newValue = e.getValue();
 
 			// handle key prefix
-			if( key.startsWith( "[" ) ) {
-				if( (SystemInfo.isWindows && key.startsWith( "[win]" )) ||
-					(SystemInfo.isMacOS && key.startsWith( "[mac]" )) ||
-					(SystemInfo.isLinux && key.startsWith( "[linux]" )) ||
-					(key.startsWith( "[light]" ) && !FlatLaf.isLafDark()) ||
-					(key.startsWith( "[dark]" ) && FlatLaf.isLafDark()) )
-				{
-					// prefix is known and enabled --> remove prefix
-					key = key.substring( key.indexOf( ']' ) + 1 );
-				} else
-					continue;
+			while( key.startsWith( "[" ) ) {
+				int closeIndex = key.indexOf( ']' );
+				if( closeIndex < 0 )
+					continue outer;
+
+				String prefix = key.substring( 0, closeIndex + 1 );
+				String lightOrDarkPrefix = FlatLaf.getUIKeyLightOrDarkPrefix( FlatLaf.isLafDark() );
+				if( !lightOrDarkPrefix.equals( prefix ) && !FlatLaf.getUIKeyPlatformPrefixes().contains( prefix ) )
+					continue outer;
+
+				// prefix is known and enabled --> remove prefix
+				key = key.substring( closeIndex + 1 );
 			}
 
 			Object oldValue = applyProperty.apply( key, newValue );
@@ -674,7 +719,7 @@ public class FlatStylingSupport
 		} catch( UnknownStyleException ex ) {
 			// apply to border
 			Border border = c.getBorder();
-			if( border instanceof StyleableBorder ) {
+			if( border instanceof StyleableObject ) {
 				if( borderShared.get() ) {
 					border = cloneBorder( border );
 					c.setBorder( border );
@@ -682,7 +727,7 @@ public class FlatStylingSupport
 				}
 
 				try {
-					return ((StyleableBorder)border).applyStyleProperty( key, value );
+					return ((StyleableObject)border).applyStyleProperty( key, value );
 				} catch( UnknownStyleException ex2 ) {
 					// ignore
 				}
@@ -832,8 +877,8 @@ public class FlatStylingSupport
 	}
 
 	public static void collectStyleableInfos( Border border, Map<String, Class<?>> infos ) {
-		if( border instanceof StyleableBorder )
-			infos.putAll( ((StyleableBorder)border).getStyleableInfos() );
+		if( border instanceof StyleableObject )
+			infos.putAll( ((StyleableObject)border).getStyleableInfos() );
 	}
 
 	public static void putAllPrefixKey( Map<String, Class<?>> infos, String keyPrefix, Map<String, Class<?>> infos2 ) {
@@ -881,8 +926,8 @@ public class FlatStylingSupport
 	}
 
 	public static Object getAnnotatedStyleableValue( Object obj, Border border, String key ) {
-		if( border instanceof StyleableBorder ) {
-			Object value = ((StyleableBorder)border).getStyleableValue( key );
+		if( border instanceof StyleableObject ) {
+			Object value = ((StyleableObject)border).getStyleableValue( key );
 			if( value != null )
 				return value;
 		}

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTabbedPaneUI.java

@@ -92,8 +92,8 @@ import javax.swing.text.JTextComponent;
 import javax.swing.text.View;
 import com.formdev.flatlaf.FlatClientProperties;
 import com.formdev.flatlaf.FlatLaf;
-import com.formdev.flatlaf.icons.FlatTabbedPaneCloseIcon;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableObject;
 import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableUI;
 import com.formdev.flatlaf.ui.FlatStylingSupport.UnknownStyleException;
 import com.formdev.flatlaf.util.Animator;
@@ -205,6 +205,7 @@ public class FlatTabbedPaneUI
 	protected static final int WIDTH_MODE_PREFERRED = 0;
 	protected static final int WIDTH_MODE_EQUAL = 1;
 	protected static final int WIDTH_MODE_COMPACT = 2;
+	/** @since 3.7 */ protected static final int WIDTH_MODE_ICON_ONLY = 3;
 
 	// tab rotation
 	/** @since 3.3 */ protected static final int NONE = -1;
@@ -670,15 +671,15 @@ public class FlatTabbedPaneUI
 	protected Object applyStyleProperty( String key, Object value ) {
 		// close icon
 		if( key.startsWith( "close" ) ) {
-			if( !(closeIcon instanceof FlatTabbedPaneCloseIcon) )
-				return new UnknownStyleException( key );
+			if( !(closeIcon instanceof StyleableObject) )
+				throw new UnknownStyleException( key );
 
 			if( closeIconShared ) {
 				closeIcon = FlatStylingSupport.cloneIcon( closeIcon );
 				closeIconShared = false;
 			}
 
-			return ((FlatTabbedPaneCloseIcon)closeIcon).applyStyleProperty( key, value );
+			return ((StyleableObject)closeIcon).applyStyleProperty( key, value );
 		}
 
 		if( value instanceof String ) {
@@ -720,8 +721,8 @@ public class FlatTabbedPaneUI
 		infos.put( "tabAreaInsets", Insets.class );
 		infos.put( "textIconGap", int.class );
 		FlatStylingSupport.collectAnnotatedStyleableInfos( this, infos );
-		if( closeIcon instanceof FlatTabbedPaneCloseIcon )
-			infos.putAll( ((FlatTabbedPaneCloseIcon)closeIcon).getStyleableInfos() );
+		if( closeIcon instanceof StyleableObject )
+			infos.putAll( ((StyleableObject)closeIcon).getStyleableInfos() );
 		return infos;
 	}
 
@@ -730,8 +731,8 @@ public class FlatTabbedPaneUI
 	public Object getStyleableValue( JComponent c, String key ) {
 		// close icon
 		if( key.startsWith( "close" ) ) {
-			return (closeIcon instanceof FlatTabbedPaneCloseIcon)
-				? ((FlatTabbedPaneCloseIcon)closeIcon).getStyleableValue( key )
+			return (closeIcon instanceof StyleableObject)
+				? ((StyleableObject)closeIcon).getStyleableValue( key )
 				: null;
 		}
 
@@ -780,6 +781,7 @@ public class FlatTabbedPaneUI
 					case WIDTH_MODE_PREFERRED:	return TABBED_PANE_TAB_WIDTH_MODE_PREFERRED;
 					case WIDTH_MODE_EQUAL:		return TABBED_PANE_TAB_WIDTH_MODE_EQUAL;
 					case WIDTH_MODE_COMPACT:	return TABBED_PANE_TAB_WIDTH_MODE_COMPACT;
+					case WIDTH_MODE_ICON_ONLY:	return TABBED_PANE_TAB_WIDTH_MODE_ICON_ONLY;
 				}
 
 			case "tabRotation":
@@ -926,9 +928,10 @@ public class FlatTabbedPaneUI
 
 		int tabWidth;
 		Icon icon;
-		if( tabWidthMode == WIDTH_MODE_COMPACT &&
-			tabIndex != tabPane.getSelectedIndex() &&
-			isHorizontalOrRotated( tabPlacement ) &&
+		if( ((tabWidthMode == WIDTH_MODE_COMPACT &&
+			  tabIndex != tabPane.getSelectedIndex() &&
+			  isHorizontalOrRotated( tabPlacement )) ||
+			 tabWidthMode == WIDTH_MODE_ICON_ONLY) &&
 			tabPane.getTabComponentAt( tabIndex ) == null &&
 			(icon = getIconForTab( tabIndex )) != null )
 		{
@@ -1247,7 +1250,8 @@ public class FlatTabbedPaneUI
 		Font font = tabPane.getFont();
 		FontMetrics metrics = tabPane.getFontMetrics( font );
 		boolean isCompact = (icon != null && !isSelected && getTabWidthMode() == WIDTH_MODE_COMPACT && isHorizontalOrRotated( tabPlacement ));
-		if( isCompact )
+		boolean isIconOnly = (icon != null && getTabWidthMode() == WIDTH_MODE_ICON_ONLY);
+		if( isCompact || isIconOnly )
 			title = null;
 		String clippedTitle = layoutAndClipLabel( tabPlacement, metrics, tabIndex, title, icon, tabRect, iconRect, textRect, isSelected );
 
@@ -1283,7 +1287,7 @@ debug*/
 		}
 
 		// paint title and icon
-		if( !isCompact )
+		if( !isCompact || isIconOnly )
 			paintText( g, tabPlacement, font, metrics, tabIndex, clippedTitle, textRect, isSelected );
 		paintIcon( g, tabPlacement, tabIndex, icon, iconRect, isSelected );
 	}
@@ -2160,6 +2164,7 @@ debug*/
 			case TABBED_PANE_TAB_WIDTH_MODE_PREFERRED:	return WIDTH_MODE_PREFERRED;
 			case TABBED_PANE_TAB_WIDTH_MODE_EQUAL:		return WIDTH_MODE_EQUAL;
 			case TABBED_PANE_TAB_WIDTH_MODE_COMPACT:	return WIDTH_MODE_COMPACT;
+			case TABBED_PANE_TAB_WIDTH_MODE_ICON_ONLY:	return WIDTH_MODE_ICON_ONLY;
 		}
 	}
 
@@ -2508,7 +2513,7 @@ debug*/
 			//   2. text of label or text component in custom tab component (including children)
 			//   3. accessible name of tab
 			//   4. accessible name of custom tab component (including children)
-			//   5. string "n. Tab"
+			//   5. string "n. Tab", if tab does not have an icon
 			String title = tabPane.getTitleAt( tabIndex );
 			if( StringUtils.isEmpty( title ) ) {
 				Component tabComp = tabPane.getTabComponentAt( tabIndex );
@@ -2518,7 +2523,7 @@ debug*/
 					title = tabPane.getAccessibleContext().getAccessibleChild( tabIndex ).getAccessibleContext().getAccessibleName();
 				if( StringUtils.isEmpty( title ) && tabComp instanceof Accessible )
 					title = findTabTitleInAccessible( (Accessible) tabComp );
-				if( StringUtils.isEmpty( title ) )
+				if( StringUtils.isEmpty( title ) && tabPane.getIconAt( tabIndex ) == null )
 					title = (tabIndex + 1) + ". Tab";
 			}
 
@@ -2539,6 +2544,12 @@ debug*/
 			if( !tabPane.isEnabled() || !tabPane.isEnabledAt( tabIndex ) )
 				menuItem.setEnabled( false );
 
+			// make menu item smaller if it contains icon only
+			if( StringUtils.isEmpty( title ) ) {
+				menuItem.putClientProperty( FlatClientProperties.STYLE,
+					"minimumWidth: 0; textNoAcceleratorGap: 0; acceleratorArrowGap: 0" );
+			}
+
 			menuItem.addActionListener( e -> selectTab( tabIndex ) );
 			return menuItem;
 		}
@@ -2707,8 +2718,13 @@ debug*/
 
 			// because this listener receives mouse events for the whole tabbed pane,
 			// we have to check whether the mouse is located over the viewport
-			if( !isInViewport( e.getX(), e.getY() ) )
+			if( !isInViewport( e.getX(), e.getY() ) ) {
+				// if it is not in the viewport, retarget the event to a parent container
+				// which might support scrolling (e.g. a surrounding ScrollPane)
+				Container parent = tabPane.getParent();
+				parent.dispatchEvent( SwingUtilities.convertMouseEvent( tabPane, e, parent ) );
 				return;
+			}
 
 			lastMouseX = e.getX();
 			lastMouseY = e.getY();

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTableUI.java

@@ -34,11 +34,11 @@ import java.awt.event.ComponentListener;
 import java.awt.event.FocusEvent;
 import java.awt.event.FocusListener;
 import java.awt.geom.Rectangle2D;
-import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
 import java.util.Map;
 import javax.swing.Action;
 import javax.swing.ActionMap;
+import javax.swing.Icon;
 import javax.swing.JComponent;
 import javax.swing.JScrollPane;
 import javax.swing.JTable;
@@ -65,6 +65,7 @@ import com.formdev.flatlaf.FlatClientProperties;
 import com.formdev.flatlaf.icons.FlatCheckBoxIcon;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
 import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableUI;
+import com.formdev.flatlaf.ui.FlatUIUtils.FlatPropertyWatcher;
 import com.formdev.flatlaf.util.Graphics2DProxy;
 import com.formdev.flatlaf.util.HiDPIUtils;
 import com.formdev.flatlaf.util.LoggingFacade;
@@ -188,29 +189,26 @@ public class FlatTableUI
 		if( rowHeight > 0 )
 			LookAndFeel.installProperty( table, "rowHeight", UIScale.scale( rowHeight ) );
 
-		FlatTablePropertyWatcher watcher = FlatTablePropertyWatcher.get( table );
-		if( watcher != null )
-			watcher.enabled = false;
-
-		if( !showHorizontalLines && (watcher == null || !watcher.showHorizontalLinesChanged) ) {
-			oldShowHorizontalLines = table.getShowHorizontalLines();
-			table.setShowHorizontalLines( false );
+		if( !showHorizontalLines ) {
+			FlatPropertyWatcher.runIfNotChanged( table, "showHorizontalLines", () -> {
+				oldShowHorizontalLines = table.getShowHorizontalLines();
+				table.setShowHorizontalLines( false );
+			} );
 		}
-		if( !showVerticalLines && (watcher == null || !watcher.showVerticalLinesChanged) ) {
-			oldShowVerticalLines = table.getShowVerticalLines();
-			table.setShowVerticalLines( false );
+		if( !showVerticalLines ) {
+			FlatPropertyWatcher.runIfNotChanged( table, "showVerticalLines", () -> {
+				oldShowVerticalLines = table.getShowVerticalLines();
+				table.setShowVerticalLines( false );
+			} );
 		}
 
-		if( intercellSpacing != null && (watcher == null || !watcher.intercellSpacingChanged) ) {
-			oldIntercellSpacing = table.getIntercellSpacing();
-			table.setIntercellSpacing( intercellSpacing );
+		if( intercellSpacing != null ) {
+			FlatPropertyWatcher.runIfNotChanged( table, "rowMargin", () -> {
+				oldIntercellSpacing = table.getIntercellSpacing();
+				table.setIntercellSpacing( intercellSpacing );
+			} );
 		}
 
-		if( watcher != null )
-			watcher.enabled = true;
-		else
-			table.addPropertyChangeListener( new FlatTablePropertyWatcher() );
-
 		// install boolean renderer
 		oldBooleanRenderer = table.getDefaultRenderer( Boolean.class );
 		if( oldBooleanRenderer instanceof UIResource )
@@ -230,25 +228,24 @@ public class FlatTableUI
 
 		oldStyleValues = null;
 
-		FlatTablePropertyWatcher watcher = FlatTablePropertyWatcher.get( table );
-		if( watcher != null )
-			watcher.enabled = false;
-
 		// restore old show horizontal/vertical lines (if not modified)
-		if( !showHorizontalLines && oldShowHorizontalLines && !table.getShowHorizontalLines() &&
-			(watcher == null || !watcher.showHorizontalLinesChanged) )
-		  table.setShowHorizontalLines( true );
-		if( !showVerticalLines && oldShowVerticalLines && !table.getShowVerticalLines() &&
-			(watcher == null || !watcher.showVerticalLinesChanged) )
-		  table.setShowVerticalLines( true );
+		if( !showHorizontalLines && oldShowHorizontalLines && !table.getShowHorizontalLines() ) {
+			FlatPropertyWatcher.runIfNotChanged( table, "showHorizontalLines", () -> {
+				table.setShowHorizontalLines( true );
+			} );
+		}
+		if( !showVerticalLines && oldShowVerticalLines && !table.getShowVerticalLines() ) {
+			FlatPropertyWatcher.runIfNotChanged( table, "showVerticalLines", () -> {
+				table.setShowVerticalLines( true );
+			} );
+		}
 
 		// restore old intercell spacing (if not modified)
-		if( intercellSpacing != null && table.getIntercellSpacing().equals( intercellSpacing ) &&
-			(watcher == null || !watcher.intercellSpacingChanged) )
-		  table.setIntercellSpacing( oldIntercellSpacing );
-
-		if( watcher != null )
-			watcher.enabled = true;
+		if( intercellSpacing != null && table.getIntercellSpacing().equals( intercellSpacing ) ) {
+			FlatPropertyWatcher.runIfNotChanged( table, "rowMargin", () -> {
+				table.setIntercellSpacing( oldIntercellSpacing );
+			} );
+		}
 
 		// uninstall boolean renderer
 		if( table.getDefaultRenderer( Boolean.class ) instanceof FlatBooleanRenderer ) {
@@ -937,48 +934,6 @@ public class FlatTableUI
 		}
 	}
 
-	//---- class FlatTablePropertyWatcher -------------------------------------
-
-	/**
-	 * Listener that watches for change of some table properties from application code.
-	 * This information is used in {@link FlatTableUI#installDefaults()} and
-	 * {@link FlatTableUI#uninstallDefaults()} to decide whether FlatLaf modifies those properties.
-	 * If they are modified in application code, FlatLaf no longer changes them.
-	 *
-	 * The listener is added once for each table, but never removed.
-	 * So switching Laf/theme reuses existing listener.
-	 */
-	private static class FlatTablePropertyWatcher
-		implements PropertyChangeListener
-	{
-		boolean enabled = true;
-		boolean showHorizontalLinesChanged;
-		boolean showVerticalLinesChanged;
-		boolean intercellSpacingChanged;
-
-		static FlatTablePropertyWatcher get( JTable table ) {
-			for( PropertyChangeListener l : table.getPropertyChangeListeners() ) {
-				if( l instanceof FlatTablePropertyWatcher )
-					return (FlatTablePropertyWatcher) l;
-			}
-			return null;
-		}
-
-		//---- interface PropertyChangeListener ----
-
-		@Override
-		public void propertyChange( PropertyChangeEvent e ) {
-			if( !enabled )
-				return;
-
-			switch( e.getPropertyName() ) {
-				case "showHorizontalLines":	showHorizontalLinesChanged = true; break;
-				case "showVerticalLines":	showVerticalLinesChanged = true; break;
-				case "rowMargin":			intercellSpacingChanged = true; break;
-			}
-		}
-	}
-
 	//---- class FlatBooleanRenderer ------------------------------------------
 
 	private static class FlatBooleanRenderer
@@ -989,12 +944,14 @@ public class FlatTableUI
 
 		FlatBooleanRenderer() {
 			setHorizontalAlignment( SwingConstants.CENTER );
-			setIcon( new FlatCheckBoxIcon() {
+			Icon icon = new FlatCheckBoxIcon() {
 				@Override
 				protected boolean isSelected( Component c ) {
 					return selected;
 				}
-			} );
+			};
+			setIcon( icon );
+			setDisabledIcon( icon );
 		}
 
 		@Override

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTextFieldUI.java

@@ -174,8 +174,6 @@ public class FlatTextFieldUI
 		defaultMargin = UIManager.getInsets( prefix + ".margin" );
 
 		LookAndFeel.installProperty( getComponent(), "opaque", false );
-
-		MigLayoutVisualPadding.install( getComponent() );
 	}
 
 	@Override
@@ -193,8 +191,6 @@ public class FlatTextFieldUI
 
 		oldStyleValues = null;
 		borderShared = null;
-
-		MigLayoutVisualPadding.uninstall( getComponent() );
 	}
 
 	@Override
@@ -204,6 +200,8 @@ public class FlatTextFieldUI
 		// necessary to update focus border and background
 		focusListener = new FlatUIUtils.RepaintFocusListener( getComponent(), null );
 		getComponent().addFocusListener( focusListener );
+
+		MigLayoutVisualPadding.install( getComponent() );
 	}
 
 	@Override
@@ -217,6 +215,8 @@ public class FlatTextFieldUI
 			getComponent().getDocument().removeDocumentListener( documentListener );
 			documentListener = null;
 		}
+
+		MigLayoutVisualPadding.uninstall( getComponent() );
 	}
 
 	@Override
@@ -628,7 +628,7 @@ debug*/
 	/**
 	 * Returns the rectangle used to paint leading and trailing icons.
 	 * It invokes {@code super.getVisibleEditorRect()} and reduces left and/or
-	 * right margin if the text field has leading or trailing icons or components.
+	 * right insets if the text field has leading or trailing icons or components.
 	 * Also, the preferred widths of leading and trailing components are removed.
 	 *
 	 * @since 2
@@ -660,24 +660,24 @@ debug*/
 			}
 		}
 
-		// if a leading/trailing icons (or components) are shown, then the left/right margins are reduced
-		// to the top margin, which places the icon nicely centered on left/right side
+		// if a leading/trailing icons (or components) are shown, then the left/right insets are reduced
+		// to the top inset, which places the icon nicely centered on left/right side
 		if( leftVisible || (ltr ? hasLeadingIcon() : hasTrailingIcon()) ) {
-			// reduce left margin
-			Insets margin = getComponent().getMargin();
-			int newLeftMargin = Math.min( margin.left, margin.top );
-			if( newLeftMargin < margin.left ) {
-				int diff = scale( margin.left - newLeftMargin );
+			// reduce left inset
+			Insets insets = getComponent().getInsets();
+			int newLeftInset = Math.min( insets.left, insets.top );
+			if( newLeftInset < insets.left ) {
+				int diff = insets.left - newLeftInset;
 				r.x -= diff;
 				r.width += diff;
 			}
 		}
 		if( rightVisible || (ltr ? hasTrailingIcon() : hasLeadingIcon()) ) {
-			// reduce right margin
-			Insets margin = getComponent().getMargin();
-			int newRightMargin = Math.min( margin.right, margin.top );
-			if( newRightMargin < margin.left )
-				r.width += scale( margin.right - newRightMargin );
+			// reduce right inset
+			Insets insets = getComponent().getInsets();
+			int newRightInset = Math.min( insets.right, insets.top );
+			if( newRightInset < insets.left )
+				r.width += insets.right - newRightInset;
 		}
 
 		// make sure that width and height are not negative

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTitlePane.java

@@ -33,7 +33,6 @@ import java.awt.Image;
 import java.awt.Insets;
 import java.awt.Point;
 import java.awt.Rectangle;
-import java.awt.Toolkit;
 import java.awt.Window;
 import java.awt.event.ActionListener;
 import java.awt.event.ComponentAdapter;
@@ -90,13 +89,16 @@ import com.formdev.flatlaf.util.UIScale;
  * @uiDefault TitlePane.iconSize							Dimension
  * @uiDefault TitlePane.iconMargins							Insets
  * @uiDefault TitlePane.titleMargins						Insets
- * @uiDefault TitlePane.menuBarEmbedded						boolean
  * @uiDefault TitlePane.titleMinimumWidth					int
  * @uiDefault TitlePane.buttonMinimumWidth					int
  * @uiDefault TitlePane.buttonMaximizedHeight				int
+ * @uiDefault TitlePane.buttonsGap							int
+ * @uiDefault TitlePane.buttonsMargins						Insets
+ * @uiDefault TitlePane.buttonsFillVertically				boolean
  * @uiDefault TitlePane.centerTitle							boolean
  * @uiDefault TitlePane.centerTitleIfMenuBarEmbedded		boolean
  * @uiDefault TitlePane.showIconBesideTitle					boolean
+ * @uiDefault TitlePane.menuBarEmbedded						boolean
  * @uiDefault TitlePane.menuBarTitleGap						int
  * @uiDefault TitlePane.menuBarTitleMinimumGap				int
  * @uiDefault TitlePane.closeIcon							Icon
@@ -124,9 +126,14 @@ public class FlatTitlePane
 	/** @since 2.5 */ protected final boolean showIconInDialogs;
 	/** @since 2 */ protected final int noIconLeftGap;
 	protected final Dimension iconSize;
+	/** @since 3.6 */ protected final Insets iconMargins;
+	/** @since 3.6 */ protected final Insets titleMargins;
 	/** @since 2.4 */ protected final int titleMinimumWidth;
 	/** @since 2.4 */ protected final int buttonMinimumWidth;
 	protected final int buttonMaximizedHeight;
+	/** @since 3.6 */ protected final int buttonsGap;
+	/** @since 3.6 */ protected final Insets buttonsMargins;
+	/** @since 3.6 */ protected final boolean buttonsFillVertically;
 	protected final boolean centerTitle;
 	protected final boolean centerTitleIfMenuBarEmbedded;
 	/** @since 2.4 */ protected final boolean showIconBesideTitle;
@@ -146,6 +153,9 @@ public class FlatTitlePane
 	protected JButton restoreButton;
 	protected JButton closeButton;
 
+	private JComponent iconifyMaximizeGapComp;
+	private JComponent maximizeCloseGapComp;
+
 	protected Window window;
 
 	private final Handler handler;
@@ -180,9 +190,7 @@ public class FlatTitlePane
 	public FlatTitlePane( JRootPane rootPane ) {
 		this.rootPane = rootPane;
 
-		Window w = SwingUtilities.getWindowAncestor( rootPane );
-		String defaultWindowStyle = (w != null && w.getType() == Window.Type.UTILITY) ? WINDOW_STYLE_SMALL : null;
-		windowStyle = clientProperty( rootPane, WINDOW_STYLE, defaultWindowStyle, String.class );
+		windowStyle = getWindowStyle( rootPane );
 
 		titleFont = FlatUIUtils.getSubUIFont( "TitlePane.font", windowStyle );
 		activeBackground = FlatUIUtils.getSubUIColor( "TitlePane.background", windowStyle );
@@ -197,9 +205,14 @@ public class FlatTitlePane
 		showIconInDialogs = FlatUIUtils.getSubUIBoolean( "TitlePane.showIconInDialogs", windowStyle, true );
 		noIconLeftGap = FlatUIUtils.getSubUIInt( "TitlePane.noIconLeftGap", windowStyle, 8 );
 		iconSize = FlatUIUtils.getSubUIDimension( "TitlePane.iconSize", windowStyle );
+		iconMargins = FlatUIUtils.getSubUIInsets( "TitlePane.iconMargins", windowStyle );
+		titleMargins = FlatUIUtils.getSubUIInsets( "TitlePane.titleMargins", windowStyle );
 		titleMinimumWidth = FlatUIUtils.getSubUIInt( "TitlePane.titleMinimumWidth", windowStyle, 60 );
 		buttonMinimumWidth = FlatUIUtils.getSubUIInt( "TitlePane.buttonMinimumWidth", windowStyle, 30 );
 		buttonMaximizedHeight = FlatUIUtils.getSubUIInt( "TitlePane.buttonMaximizedHeight", windowStyle, 0 );
+		buttonsGap = FlatUIUtils.getSubUIInt( "TitlePane.buttonsGap", windowStyle, 0 );
+		buttonsMargins = FlatUIUtils.getSubUIInsets( "TitlePane.buttonsMargins", windowStyle );
+		buttonsFillVertically = FlatUIUtils.getSubUIBoolean( "TitlePane.buttonsFillVertically", windowStyle, true );
 		centerTitle = FlatUIUtils.getSubUIBoolean( "TitlePane.centerTitle", windowStyle, false );
 		centerTitleIfMenuBarEmbedded = FlatUIUtils.getSubUIBoolean( "TitlePane.centerTitleIfMenuBarEmbedded", windowStyle, true );
 		showIconBesideTitle = FlatUIUtils.getSubUIBoolean( "TitlePane.showIconBesideTitle", windowStyle, false );
@@ -229,6 +242,12 @@ public class FlatTitlePane
 		applyComponentOrientation( rootPane.getComponentOrientation() );
 	}
 
+	static String getWindowStyle( JRootPane rootPane ) {
+		Window w = SwingUtilities.getWindowAncestor( rootPane );
+		String defaultWindowStyle = (w != null && w.getType() == Window.Type.UTILITY) ? WINDOW_STYLE_SMALL : null;
+		return clientProperty( rootPane, WINDOW_STYLE, defaultWindowStyle, String.class );
+	}
+
 	protected FlatTitlePaneBorder createTitlePaneBorder() {
 		return new FlatTitlePaneBorder();
 	}
@@ -246,8 +265,8 @@ public class FlatTitlePane
 				setUI( new FlatTitleLabelUI() );
 			}
 		};
-		iconLabel.setBorder( new FlatEmptyBorder( FlatUIUtils.getSubUIInsets( "TitlePane.iconMargins", windowStyle ) ) );
-		titleLabel.setBorder( new FlatEmptyBorder( FlatUIUtils.getSubUIInsets( "TitlePane.titleMargins", windowStyle ) ) );
+		iconLabel.setBorder( new FlatEmptyBorder( iconMargins ) );
+		titleLabel.setBorder( new FlatEmptyBorder( titleMargins ) );
 
 		leftPanel.setLayout( new BoxLayout( leftPanel, BoxLayout.LINE_AXIS ) );
 		leftPanel.setOpaque( false );
@@ -350,10 +369,15 @@ public class FlatTitlePane
 		restoreButton = createButton( "TitlePane.restoreIcon", "Restore", e -> restore() );
 		closeButton = createButton( "TitlePane.closeIcon", "Close", e -> close() );
 
+		iconifyMaximizeGapComp = createButtonsGapComp();
+		maximizeCloseGapComp = createButtonsGapComp();
+
 		// initially hide buttons that are only supported in frames
 		iconifyButton.setVisible( false );
 		maximizeButton.setVisible( false );
 		restoreButton.setVisible( false );
+		iconifyMaximizeGapComp.setVisible( false );
+		maximizeCloseGapComp.setVisible( false );
 
 		buttonPanel = new JPanel() {
 			@Override
@@ -365,12 +389,13 @@ public class FlatTitlePane
 
 				if( buttonMaximizedHeight > 0 && isWindowMaximized() && !hasVisibleEmbeddedMenuBar( rootPane.getJMenuBar() ) ) {
 					// make title pane height smaller when frame is maximized
-					size = new Dimension( size.width, Math.min( size.height, UIScale.scale( buttonMaximizedHeight ) ) );
+					size = new Dimension( size.width, Math.min( size.height, UIScale.scale( buttonMaximizedHeight + buttonsMargins.top + buttonsMargins.bottom ) ) );
 				}
 				return size;
 			}
 		};
 		buttonPanel.setOpaque( false );
+		buttonPanel.setBorder( FlatUIUtils.nonUIResource( new FlatEmptyBorder( buttonsMargins ) ) );
 		buttonPanel.setLayout( new BoxLayout( buttonPanel, BoxLayout.LINE_AXIS ) );
 		if( rootPane.getWindowDecorationStyle() == JRootPane.FRAME ) {
 			// JRootPane.FRAME works only for frames (and not for dialogs)
@@ -379,8 +404,10 @@ public class FlatTitlePane
 			// later in frameStateChanged(), which is invoked from addNotify()
 
 			buttonPanel.add( iconifyButton );
+			buttonPanel.add( iconifyMaximizeGapComp );
 			buttonPanel.add( maximizeButton );
 			buttonPanel.add( restoreButton );
+			buttonPanel.add( maximizeCloseGapComp );
 		}
 		buttonPanel.add( closeButton );
 
@@ -397,13 +424,17 @@ public class FlatTitlePane
 			@Override
 			public Dimension getMinimumSize() {
 				// allow the button to shrink if space is rare
-				return new Dimension( UIScale.scale( buttonMinimumWidth ), super.getMinimumSize().height );
+				return new Dimension(
+					Math.min( UIScale.scale( buttonMinimumWidth ), super.getPreferredSize().width ),
+					super.getMinimumSize().height );
 			}
 			@Override
 			public Dimension getMaximumSize() {
 				// allow the button to fill whole button area height
 				// see also BasicMenuUI.getMaximumSize()
-				return new Dimension( super.getMaximumSize().width, Short.MAX_VALUE );
+				return buttonsFillVertically
+					? new Dimension( super.getMaximumSize().width, Short.MAX_VALUE )
+					: super.getMaximumSize();
 			}
 		};
 		button.setFocusable( false );
@@ -414,6 +445,14 @@ public class FlatTitlePane
 		return button;
 	}
 
+	private JComponent createButtonsGapComp() {
+		JComponent gapComp = new JPanel();
+		gapComp.setOpaque( false );
+		gapComp.setMinimumSize( new Dimension( 0, 0 ) );
+		gapComp.setPreferredSize( new Dimension( UIScale.scale( buttonsGap ), 0 ) );
+		return gapComp;
+	}
+
 	protected void activeChanged( boolean active ) {
 		Color background = clientPropertyColor( rootPane, TITLE_BAR_BACKGROUND, null );
 		Color foreground = clientPropertyColor( rootPane, TITLE_BAR_FOREGROUND, null );
@@ -435,6 +474,9 @@ public class FlatTitlePane
 		closeButton.setForeground( foreground );
 
 		// this is necessary because hover/pressed colors are derived from background color
+		// (since FlatWindowAbstractIcon now invokes FlatTitlePane.getBackground()
+		//  to get base color, this is no longer necessary, but keep it for compatibility;
+		//  e.g. for custom window icons)
 		iconifyButton.setBackground( background );
 		maximizeButton.setBackground( background );
 		restoreButton.setBackground( background );
@@ -442,7 +484,7 @@ public class FlatTitlePane
 	}
 
 	protected void frameStateChanged() {
-		if( window == null || rootPane.getWindowDecorationStyle() != JRootPane.FRAME )
+		if( window == null || rootPane.getWindowDecorationStyle() == JRootPane.NONE )
 			return;
 
 		updateVisibility();
@@ -494,6 +536,13 @@ public class FlatTitlePane
 			maximizeButton.setVisible( false );
 			restoreButton.setVisible( false );
 		}
+
+		boolean iconifyVisible = iconifyButton.isVisible();
+		boolean maximizeVisible = maximizeButton.isVisible();
+		boolean restoreVisible = restoreButton.isVisible();
+		boolean closeVisible = closeButton.isVisible();
+		iconifyMaximizeGapComp.setVisible( iconifyVisible && (maximizeVisible || restoreVisible || closeVisible) );
+		maximizeCloseGapComp.setVisible( closeVisible && (maximizeVisible || restoreVisible) );
 	}
 
 	protected void updateIcon() {
@@ -747,12 +796,17 @@ public class FlatTitlePane
 		if( isFullWindowContent() )
 			return;
 
+		g.setColor( getBackground() );
+		g.fillRect( 0, 0, getWidth(), getHeight() );
+	}
+
+	@Override
+	public Color getBackground() {
 		// not storing value of "TitlePane.unifiedBackground" in class to allow changing at runtime
-		g.setColor( (UIManager.getBoolean( "TitlePane.unifiedBackground" ) &&
+		return (UIManager.getBoolean( "TitlePane.unifiedBackground" ) &&
 				clientPropertyColor( rootPane, TITLE_BAR_BACKGROUND, null ) == null)
 			? FlatUIUtils.getParentBackground( this )
-			: getBackground() );
-		g.fillRect( 0, 0, getWidth(), getHeight() );
+			: super.getBackground();
 	}
 
 	/**
@@ -860,7 +914,7 @@ public class FlatTitlePane
 			// screen insets are in physical size, except for Java 15+
 			// (see https://bugs.openjdk.java.net/browse/JDK-8243925)
 			// and except for Java 8 on secondary screens where primary screen is scaled
-			Insets screenInsets = window.getToolkit().getScreenInsets( gc );
+			Insets screenInsets = FlatUIUtils.getScreenInsets( gc );
 
 			// maximized bounds are required in physical size, except for Java 15+
 			// (see https://bugs.openjdk.java.net/browse/JDK-8231564 and
@@ -1094,6 +1148,7 @@ public class FlatTitlePane
 		if( !c.isDisplayable() || !c.isVisible() || !contains( c, x, y ) || c == mouseLayer )
 			return true; // continue checking with next component
 
+		// check enabled component that has mouse listeners
 		if( c.isEnabled() &&
 			(c.getMouseListeners().length > 0 ||
 			 c.getMouseMotionListeners().length > 0) )
@@ -1417,22 +1472,9 @@ debug*/
 
 		private Point dragOffset;
 		private boolean linuxNativeMove;
-		private long lastSingleClickWhen;
 
 		@Override
 		public void mouseClicked( MouseEvent e ) {
-			// on Linux, when using native library, the mouse clicked event
-			// is usually not sent and maximize/restore is done in mouse pressed event
-			// this check is here for the case that a mouse clicked event comes through for some reason
-			if( linuxNativeMove && SystemInfo.isLinux && FlatNativeLinuxLibrary.isWMUtilsSupported( window ) ) {
-				// see comment in mousePressed()
-				if( lastSingleClickWhen != 0 && (e.getWhen() - lastSingleClickWhen) <= getMultiClickInterval() ) {
-					lastSingleClickWhen = 0;
-					maximizeOrRestore();
-				}
-				return;
-			}
-
 			if( e.getClickCount() == 2 && SwingUtilities.isLeftMouseButton( e ) ) {
 				if( SwingUtilities.getDeepestComponentAt( FlatTitlePane.this, e.getX(), e.getY() ) == iconLabel ) {
 					// double-click on icon closes window
@@ -1463,42 +1505,6 @@ debug*/
 
 			dragOffset = SwingUtilities.convertPoint( mouseLayer, e.getPoint(), window );
 			linuxNativeMove = false;
-
-			// on Linux, move or maximize/restore window
-			if( SystemInfo.isLinux && FlatNativeLinuxLibrary.isWMUtilsSupported( window ) ) {
-				// The fired Java mouse events, when doing a double-click and the first click
-				// sends a _NET_WM_MOVERESIZE message, are different for various Linux distributions:
-				//   CentOS 7      (GNOME 3.28.2, X11):   PRESSED(clickCount=1) PRESSED(clickCount=2) RELEASED(clickCount=2)
-				//   Ubuntu 20.04  (GNOME 3.36.1, X11):   PRESSED(clickCount=1) PRESSED(clickCount=2) RELEASED(clickCount=2)
-				//   Ubuntu 22.04  (GNOME 42.2, Wayland): PRESSED(clickCount=1)                       RELEASED(clickCount=1) CLICKED(clickCount=1)
-				//   Kubuntu 22.04 (KDE 5.24.4, X11):     PRESSED(clickCount=1) PRESSED(clickCount=1) RELEASED(clickCount=1)
-
-				// double-click is not always recognized in Java when using _NET_WM_MOVERESIZE message
-				int clickCount = e.getClickCount();
-				if( clickCount == 1 && lastSingleClickWhen != 0 && (e.getWhen() - lastSingleClickWhen) <= getMultiClickInterval() )
-					clickCount = 2;
-
-				switch( clickCount ) {
-					case 1:
-						// move window via _NET_WM_MOVERESIZE message
-						e.consume();
-						linuxNativeMove = FlatNativeLinuxLibrary.moveOrResizeWindow( window, e, FlatNativeLinuxLibrary.MOVE );
-						lastSingleClickWhen = e.getWhen();
-						break;
-
-					case 2:
-						// maximize/restore on double-click
-						// also done here because no mouse clicked event is sent when using _NET_WM_MOVERESIZE message
-						lastSingleClickWhen = 0;
-						maximizeOrRestore();
-						break;
-				}
-			}
-		}
-
-		private int getMultiClickInterval() {
-			Object value = Toolkit.getDefaultToolkit().getDesktopProperty( "awt.multiClickInterval" );
-			return (value instanceof Integer) ? (Integer) value : 500;
 		}
 
 		@Override public void mouseReleased( MouseEvent e ) {}
@@ -1521,6 +1527,13 @@ debug*/
 			if( hasNativeCustomDecoration() )
 				return; // do nothing if having native window border
 
+			// on Linux, move window using window manager
+			if( SystemInfo.isLinux && FlatNativeLinuxLibrary.isWMUtilsSupported( window ) ) {
+				linuxNativeMove = FlatNativeLinuxLibrary.moveOrResizeWindow( window, e, FlatNativeLinuxLibrary.MOVE );
+				if( linuxNativeMove )
+					return;
+			}
+
 			// restore window if it is maximized
 			if( window instanceof Frame ) {
 				Frame frame = (Frame) window;

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatToolBarUI.java

@@ -47,6 +47,7 @@ import javax.swing.plaf.basic.BasicToolBarUI;
 import com.formdev.flatlaf.FlatClientProperties;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
 import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableUI;
+import com.formdev.flatlaf.ui.FlatUIUtils.FlatPropertyWatcher;
 import com.formdev.flatlaf.util.HiDPIUtils;
 import com.formdev.flatlaf.util.LoggingFacade;
 import com.formdev.flatlaf.util.UIScale;
@@ -144,11 +145,13 @@ public class FlatToolBarUI
 		hoverButtonGroupBackground = UIManager.getColor( "ToolBar.hoverButtonGroupBackground" );
 
 		// floatable
+		oldFloatable = null;
 		if( !UIManager.getBoolean( "ToolBar.floatable" ) ) {
-			oldFloatable = toolBar.isFloatable();
-			toolBar.setFloatable( false );
-		} else
-			oldFloatable = null;
+			FlatPropertyWatcher.runIfNotChanged( toolBar, "floatable", () -> {
+				oldFloatable = toolBar.isFloatable();
+				toolBar.setFloatable( false );
+			} );
+		}
 	}
 
 	@Override
@@ -158,7 +161,9 @@ public class FlatToolBarUI
 		hoverButtonGroupBackground = null;
 
 		if( oldFloatable != null ) {
-			toolBar.setFloatable( oldFloatable );
+			FlatPropertyWatcher.runIfNotChanged( toolBar, "floatable", () -> {
+				toolBar.setFloatable( oldFloatable );
+			} );
 			oldFloatable = null;
 		}
 	}

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTreeUI.java

@@ -102,9 +102,11 @@ import com.formdev.flatlaf.util.UIScale;
  * @uiDefault Tree.selectionForeground				Color
  * @uiDefault Tree.selectionInactiveBackground		Color
  * @uiDefault Tree.selectionInactiveForeground		Color
+ * @uiDefault Tree.alternateRowColor				Color
  * @uiDefault Tree.selectionInsets					Insets
  * @uiDefault Tree.selectionArc						int
  * @uiDefault Tree.wideSelection					boolean
+ * @uiDefault Tree.wideCellRenderer					boolean
  * @uiDefault Tree.showCellFocusIndicator			boolean
  * @uiDefault Tree.showDefaultIcons					boolean
  *
@@ -141,9 +143,11 @@ public class FlatTreeUI
 	@Styleable protected Color selectionInactiveBackground;
 	@Styleable protected Color selectionInactiveForeground;
 	@Styleable protected Color selectionBorderColor;
+	/** @since 3.6 */ @Styleable protected Color alternateRowColor;
 	/** @since 3 */ @Styleable protected Insets selectionInsets;
 	/** @since 3 */ @Styleable protected int selectionArc;
 	@Styleable protected boolean wideSelection;
+	/** @since 3.6 */ @Styleable protected boolean wideCellRenderer;
 	@Styleable protected boolean showCellFocusIndicator;
 	/** @since 3 */ protected boolean showDefaultIcons;
 
@@ -192,9 +196,11 @@ public class FlatTreeUI
 		selectionInactiveBackground = UIManager.getColor( "Tree.selectionInactiveBackground" );
 		selectionInactiveForeground = UIManager.getColor( "Tree.selectionInactiveForeground" );
 		selectionBorderColor = UIManager.getColor( "Tree.selectionBorderColor" );
+		alternateRowColor = UIManager.getColor( "Tree.alternateRowColor" );
 		selectionInsets = UIManager.getInsets( "Tree.selectionInsets" );
 		selectionArc = UIManager.getInt( "Tree.selectionArc" );
 		wideSelection = UIManager.getBoolean( "Tree.wideSelection" );
+		wideCellRenderer = UIManager.getBoolean( "Tree.wideCellRenderer" );
 		showCellFocusIndicator = UIManager.getBoolean( "Tree.showCellFocusIndicator" );
 		showDefaultIcons = UIManager.getBoolean( "Tree.showDefaultIcons" );
 
@@ -227,6 +233,7 @@ public class FlatTreeUI
 		selectionInactiveBackground = null;
 		selectionInactiveForeground = null;
 		selectionBorderColor = null;
+		alternateRowColor = null;
 
 		defaultLeafIcon = null;
 		defaultClosedIcon = null;
@@ -310,6 +317,7 @@ public class FlatTreeUI
 			if( e.getSource() == tree ) {
 				switch( e.getPropertyName() ) {
 					case TREE_WIDE_SELECTION:
+					case TREE_WIDE_CELL_RENDERER:
 					case TREE_PAINT_SELECTION:
 						HiDPIUtils.repaint( tree );
 						break;
@@ -569,7 +577,27 @@ public class FlatTreeUI
 		boolean isEditing = (editingComponent != null && editingRow == row);
 		boolean isSelected = tree.isRowSelected( row );
 		boolean isDropRow = isDropRow( row );
-		boolean needsSelectionPainting = (isSelected || isDropRow) && isPaintSelection();
+
+		// paint alternating rows
+		if( alternateRowColor != null && row % 2 != 0 ) {
+			g.setColor( alternateRowColor );
+
+			float arc = UIScale.scale( selectionArc / 2f );
+			FlatUIUtils.paintSelection( (Graphics2D) g, 0, bounds.y, tree.getWidth(), bounds.height,
+				UIScale.scale( selectionInsets ), arc, arc, arc, arc, 0 );
+		}
+
+		// update bounds for wide cell renderer
+		if( isWideSelection() && isWideCellRenderer() ) {
+			Rectangle wideBounds = new Rectangle( bounds );
+			if( tree.getComponentOrientation().isLeftToRight() )
+				wideBounds.width = tree.getWidth() - bounds.x - insets.right;
+			else {
+				wideBounds.x = insets.left;
+				wideBounds.width = bounds.x + bounds.width - insets.left;
+			}
+			bounds = wideBounds;
+		}
 
 		// do not paint row if editing
 		if( isEditing ) {
@@ -579,7 +607,7 @@ public class FlatTreeUI
 			if( isSelected && isWideSelection() ) {
 				Color oldColor = g.getColor();
 				g.setColor( selectionInactiveBackground );
-				paintWideSelection( g, bounds, row );
+				paintWideSelection( g, bounds, row, false );
 				g.setColor( oldColor );
 			}
 			return;
@@ -599,7 +627,7 @@ public class FlatTreeUI
 
 		// renderer background/foreground
 		Color oldBackgroundSelectionColor = null;
-		if( isSelected && !hasFocus && !isDropRow ) {
+		if( isSelected && !hasFocus ) {
 			// apply inactive selection background/foreground if tree is not focused
 			oldBackgroundSelectionColor = setRendererBackgroundSelectionColor( rendererComponent, selectionInactiveBackground );
 			setRendererForeground( rendererComponent, selectionInactiveForeground );
@@ -626,26 +654,12 @@ public class FlatTreeUI
 		}
 
 		// paint selection background
-		if( needsSelectionPainting ) {
-			// set selection color
-			Color oldColor = g.getColor();
-			g.setColor( isDropRow
-				? UIManager.getColor( "Tree.dropCellBackground" )
-				: (rendererComponent instanceof DefaultTreeCellRenderer
-					? ((DefaultTreeCellRenderer)rendererComponent).getBackgroundSelectionColor()
-					: (hasFocus ? selectionBackground : selectionInactiveBackground)) );
+		if( isSelected && isPaintSelection() ) {
+			Color selectionColor = rendererComponent instanceof DefaultTreeCellRenderer
+				? ((DefaultTreeCellRenderer)rendererComponent).getBackgroundSelectionColor()
+				: (hasFocus ? selectionBackground : selectionInactiveBackground);
 
-			if( isWideSelection() ) {
-				// wide selection
-				paintWideSelection( g, bounds, row );
-			} else {
-				// non-wide selection
-				paintCellBackground( g, rendererComponent, bounds, row, true );
-			}
-
-			// this is actually not necessary because renderer should always set color
-			// before painting, but doing anyway to avoid any side effect (in bad renderers)
-			g.setColor( oldColor );
+			paintRowSelection( g, selectionColor, rendererComponent, bounds, row, false );
 		} else {
 			// paint cell background if DefaultTreeCellRenderer.getBackgroundNonSelectionColor() is set
 			if( rendererComponent instanceof DefaultTreeCellRenderer ) {
@@ -654,12 +668,19 @@ public class FlatTreeUI
 				if( bg != null && !bg.equals( defaultCellNonSelectionBackground ) ) {
 					Color oldColor = g.getColor();
 					g.setColor( bg );
-					paintCellBackground( g, rendererComponent, bounds, row, false );
+					paintCellBackground( g, rendererComponent, bounds, row, false, false );
 					g.setColor( oldColor );
 				}
 			}
 		}
 
+		// paint drop background
+		// (this needs to be an extra step for rounded selection)
+		if( isDropRow && isPaintSelection() ) {
+			paintRowSelection( g, UIManager.getColor( "Tree.dropCellBackground" ),
+				rendererComponent, bounds, row, true );
+		}
+
 		// paint renderer
 		rendererPane.paintComponent( g, rendererComponent, tree, bounds.x, bounds.y, bounds.width, bounds.height, true );
 
@@ -670,6 +691,26 @@ public class FlatTreeUI
 			((DefaultTreeCellRenderer)rendererComponent).setBorderSelectionColor( oldBorderSelectionColor );
 	}
 
+	private void paintRowSelection( Graphics g, Color color, Component rendererComponent,
+		Rectangle bounds, int row, boolean paintDropSelection )
+	{
+		// set selection color
+		Color oldColor = g.getColor();
+		g.setColor( color );
+
+		if( isWideSelection() ) {
+			// wide selection
+			paintWideSelection( g, bounds, row, paintDropSelection );
+		} else {
+			// non-wide selection
+			paintCellBackground( g, rendererComponent, bounds, row, true, paintDropSelection );
+		}
+
+		// this is actually not necessary because renderer should always set color
+		// before painting, but doing anyway to avoid any side effect (in bad renderers)
+		g.setColor( oldColor );
+	}
+
 	private Color setRendererBackgroundSelectionColor( Component rendererComponent, Color color ) {
 		Color oldColor = null;
 
@@ -706,11 +747,11 @@ public class FlatTreeUI
 		return oldColor;
 	}
 
-	private void paintWideSelection( Graphics g, Rectangle bounds, int row ) {
+	private void paintWideSelection( Graphics g, Rectangle bounds, int row, boolean paintDropSelection ) {
 		float arcTop, arcBottom;
 		arcTop = arcBottom = UIScale.scale( selectionArc / 2f );
 
-		if( useUnitedRoundedSelection() ) {
+		if( useUnitedRoundedSelection() && !paintDropSelection ) {
 			if( row > 0 && tree.isRowSelected( row - 1 ) )
 				arcTop = 0;
 			if( row < tree.getRowCount() - 1 && tree.isRowSelected( row + 1 ) )
@@ -722,7 +763,7 @@ public class FlatTreeUI
 	}
 
 	private void paintCellBackground( Graphics g, Component rendererComponent, Rectangle bounds,
-		int row, boolean paintSelection )
+		int row, boolean paintSelection, boolean paintDropSelection )
 	{
 		int xOffset = 0;
 		int imageOffset = 0;
@@ -740,7 +781,7 @@ public class FlatTreeUI
 			float arcTopLeft, arcTopRight, arcBottomLeft, arcBottomRight;
 			arcTopLeft = arcTopRight = arcBottomLeft = arcBottomRight = UIScale.scale( selectionArc / 2f );
 
-			if( useUnitedRoundedSelection() ) {
+			if( useUnitedRoundedSelection() && !paintDropSelection ) {
 				if( row > 0 && tree.isRowSelected( row - 1 ) ) {
 					Rectangle r = getPathBounds( tree, tree.getPathForRow( row - 1 ) );
 					arcTopLeft = Math.min( arcTopLeft, r.x - bounds.x );
@@ -795,6 +836,11 @@ public class FlatTreeUI
 		return clientPropertyBoolean( tree, TREE_WIDE_SELECTION, wideSelection );
 	}
 
+	/** @since 3.6 */
+	protected boolean isWideCellRenderer() {
+		return clientPropertyBoolean( tree, TREE_WIDE_CELL_RENDERER, wideCellRenderer );
+	}
+
 	protected boolean isPaintSelection() {
 		return clientPropertyBoolean( tree, TREE_PAINT_SELECTION, paintSelection );
 	}

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatUIUtils.java

@@ -26,6 +26,7 @@ import java.awt.Graphics;
 import java.awt.Graphics2D;
 import java.awt.GraphicsConfiguration;
 import java.awt.GraphicsDevice;
+import java.awt.GraphicsEnvironment;
 import java.awt.Insets;
 import java.awt.KeyboardFocusManager;
 import java.awt.Paint;
@@ -34,6 +35,7 @@ import java.awt.RenderingHints;
 import java.awt.Shape;
 import java.awt.Stroke;
 import java.awt.SystemColor;
+import java.awt.Toolkit;
 import java.awt.Window;
 import java.awt.event.FocusEvent;
 import java.awt.event.FocusListener;
@@ -42,6 +44,8 @@ import java.awt.geom.Path2D;
 import java.awt.geom.Point2D;
 import java.awt.geom.Rectangle2D;
 import java.awt.geom.RoundRectangle2D;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
 import java.util.IdentityHashMap;
 import java.util.WeakHashMap;
 import java.util.function.Predicate;
@@ -129,6 +133,20 @@ public class FlatUIUtils
 		return insets.top == 0 && insets.left == 0 && insets.bottom == 0 && insets.right == 0;
 	}
 
+	/** @since 3.6 */
+	public static Color stateColor( boolean state, Color stateColor, Color defaultColor ) {
+		return (state && stateColor != null) ? stateColor : defaultColor;
+	}
+
+	/** @since 3.6 */
+	public static Color stateColor( boolean state1, Color state1Color,
+		boolean state2, Color state2Color, Color defaultColor )
+	{
+		return (state1 && state1Color != null)
+			? state1Color
+			: ((state2 && state2Color != null) ? state2Color : defaultColor);
+	}
+
 	public static Color getUIColor( String key, int defaultColorRGB ) {
 		Color color = UIManager.getColor( key );
 		return (color != null) ? color : new Color( defaultColorRGB );
@@ -400,6 +418,17 @@ public class FlatUIUtils
 		return (fullScreenWindow != null && fullScreenWindow == SwingUtilities.windowForComponent( c ));
 	}
 
+	/** @since 3.6.1 */
+	public static Insets getScreenInsets( GraphicsConfiguration gc ) {
+		// on Linux, getScreenInsets() may report wrong values in multi-screen setups
+		// see https://github.com/apache/netbeans/issues/8532#issuecomment-2909687016
+		if( SystemInfo.isLinux &&
+			GraphicsEnvironment.getLocalGraphicsEnvironment().getScreenDevices().length > 1 )
+		  return new Insets( 0, 0, 0, 0 );
+
+		return Toolkit.getDefaultToolkit().getScreenInsets( gc );
+	}
+
 	public static Boolean isRoundRect( Component c ) {
 		return (c instanceof JComponent)
 			? FlatClientProperties.clientPropertyBooleanStrict(
@@ -447,6 +476,9 @@ public class FlatUIUtils
 	 * Returns the scaled arc diameter of the border for the given component.
 	 */
 	public static float getBorderArc( JComponent c ) {
+		if( c.getBorder() instanceof FlatLineBorder )
+			return UIScale.scale( ((FlatLineBorder)c.getBorder()).getArc() );
+
 		FlatBorder border = getOutsideFlatBorder( c );
 		return (border != null)
 			? UIScale.scale( (float) border.getArc( c ) )
@@ -1383,4 +1415,47 @@ debug*/
 			return delegate.isBorderOpaque();
 		}
 	}
+
+	//---- class FlatPropertyWatcher ------------------------------------------
+
+	/**
+	 * Listener that watches for change of a property from application code.
+	 * This information can be used to decide whether FlatLaf modifies the property.
+	 * If it is modified in application code, FlatLaf no longer changes it.
+	 * <p>
+	 * The listener is added once for a property, but never removed.
+	 * So switching Laf/theme reuses existing listener.
+	 */
+	static class FlatPropertyWatcher
+		implements PropertyChangeListener
+	{
+		private boolean changed;
+
+		static void runIfNotChanged( JComponent c, String propName, Runnable runnable ) {
+			FlatPropertyWatcher watcher = getOrInstall( c, propName );
+			if( watcher.changed )
+				return;
+
+			runnable.run();
+			watcher.changed = false;
+		}
+
+		private static FlatPropertyWatcher getOrInstall( JComponent c, String propName ) {
+			for( PropertyChangeListener l : c.getPropertyChangeListeners( propName ) ) {
+				if( l instanceof FlatPropertyWatcher )
+					return (FlatPropertyWatcher) l;
+			}
+
+			FlatPropertyWatcher watcher = new FlatPropertyWatcher();
+			c.addPropertyChangeListener( propName, watcher );
+			return watcher;
+		}
+
+		//---- interface PropertyChangeListener ----
+
+		@Override
+		public void propertyChange( PropertyChangeEvent e ) {
+			changed = true;
+		}
+	}
 }

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatWindowResizer.java

@@ -41,7 +41,6 @@ import java.util.function.Supplier;
 import javax.swing.DesktopManager;
 import javax.swing.JComponent;
 import javax.swing.JInternalFrame;
-import javax.swing.JLayeredPane;
 import javax.swing.JPanel;
 import javax.swing.JRootPane;
 import javax.swing.SwingUtilities;
@@ -60,8 +59,6 @@ import com.formdev.flatlaf.util.UIScale;
 public abstract class FlatWindowResizer
 	implements PropertyChangeListener, ComponentListener
 {
-	protected final static Integer WINDOW_RESIZER_LAYER = JLayeredPane.DRAG_LAYER + 1;
-
 	protected final JComponent resizeComp;
 
 	protected final int borderDragThickness = FlatUIUtils.getUIInt( "RootPane.borderDragThickness", 5 );
@@ -82,12 +79,12 @@ public abstract class FlatWindowResizer
 		leftDragComp = createDragBorderComponent( NW_RESIZE_CURSOR, W_RESIZE_CURSOR, SW_RESIZE_CURSOR );
 		rightDragComp = createDragBorderComponent( NE_RESIZE_CURSOR, E_RESIZE_CURSOR, SE_RESIZE_CURSOR );
 
-		Container cont = (resizeComp instanceof JRootPane) ? ((JRootPane)resizeComp).getLayeredPane() : resizeComp;
-		Object cons = (cont instanceof JLayeredPane) ? WINDOW_RESIZER_LAYER : null;
-		cont.add( topDragComp, cons, 0 );
-		cont.add( bottomDragComp, cons, 1 );
-		cont.add( leftDragComp, cons, 2 );
-		cont.add( rightDragComp, cons, 3 );
+		// for rootpanes, add after glasspane
+		int insertIndex = (resizeComp instanceof JRootPane) ? 1 : 0;
+		resizeComp.add( topDragComp,    insertIndex++ );
+		resizeComp.add( bottomDragComp, insertIndex++ );
+		resizeComp.add( leftDragComp,   insertIndex++ );
+		resizeComp.add( rightDragComp,  insertIndex++ );
 
 		resizeComp.addComponentListener( this );
 		resizeComp.addPropertyChangeListener( "ancestor", this );
@@ -106,11 +103,10 @@ public abstract class FlatWindowResizer
 		resizeComp.removeComponentListener( this );
 		resizeComp.removePropertyChangeListener( "ancestor", this );
 
-		Container cont = topDragComp.getParent();
-		cont.remove( topDragComp );
-		cont.remove( bottomDragComp );
-		cont.remove( leftDragComp );
-		cont.remove( rightDragComp );
+		resizeComp.remove( topDragComp );
+		resizeComp.remove( bottomDragComp );
+		resizeComp.remove( leftDragComp );
+		resizeComp.remove( rightDragComp );
 	}
 
 	public void doLayout() {
@@ -121,7 +117,7 @@ public abstract class FlatWindowResizer
 		int y = 0;
 		int width = resizeComp.getWidth();
 		int height = resizeComp.getHeight();
-		if( width == 0 || height == 0 )
+		if( width <= 0 || height <= 0 )
 			return;
 
 		Insets resizeInsets = getResizeInsets();
@@ -192,7 +188,7 @@ public abstract class FlatWindowResizer
 	protected abstract Dimension getWindowMinimumSize();
 	protected abstract Dimension getWindowMaximumSize();
 
-	protected void beginResizing( int resizeDir ) {}
+	protected void beginResizing( int resizeDir, MouseEvent e ) {}
 	protected void endResizing() {}
 
 	//---- interface PropertyChangeListener ----
@@ -251,8 +247,7 @@ public abstract class FlatWindowResizer
 			centerComp = new JPanel();
 			centerComp.setOpaque( false );
 			centerComp.setVisible( false );
-			Container cont = rootPane.getLayeredPane();
-			cont.add( centerComp, WINDOW_RESIZER_LAYER, 4 );
+			rootPane.add( centerComp, 5 );
 
 			// On Linux, limit window resizing to screen bounds because otherwise
 			// there would be a strange effect when the mouse is moved over a sidebar
@@ -262,8 +257,7 @@ public abstract class FlatWindowResizer
 
 		@Override
 		public void uninstall() {
-			Container cont = topDragComp.getParent();
-			cont.remove( centerComp );
+			resizeComp.remove( centerComp );
 
 			super.uninstall();
 		}
@@ -337,7 +331,7 @@ public abstract class FlatWindowResizer
 		protected Rectangle getParentBounds() {
 			GraphicsConfiguration gc = window.getGraphicsConfiguration();
 			Rectangle bounds = gc.getBounds();
-			Insets insets = window.getToolkit().getScreenInsets( gc );
+			Insets insets = FlatUIUtils.getScreenInsets( gc );
 			return new Rectangle( bounds.x + insets.left, bounds.y + insets.top,
 				bounds.width - insets.left - insets.right,
 				bounds.height - insets.top - insets.bottom );
@@ -376,7 +370,25 @@ public abstract class FlatWindowResizer
 		}
 
 		@Override
-		protected void beginResizing( int resizeDir ) {
+		protected void beginResizing( int resizeDir, MouseEvent e ) {
+			// on Linux, resize window using window manager
+			if( SystemInfo.isLinux && window != null && FlatNativeLinuxLibrary.isWMUtilsSupported( window ) ) {
+				int direction = -1;
+				switch( resizeDir ) {
+					case N_RESIZE_CURSOR:	direction = FlatNativeLinuxLibrary.SIZE_TOP; break;
+					case S_RESIZE_CURSOR:	direction = FlatNativeLinuxLibrary.SIZE_BOTTOM; break;
+					case W_RESIZE_CURSOR:	direction = FlatNativeLinuxLibrary.SIZE_LEFT; break;
+					case E_RESIZE_CURSOR:	direction = FlatNativeLinuxLibrary.SIZE_RIGHT; break;
+					case NW_RESIZE_CURSOR:	direction = FlatNativeLinuxLibrary.SIZE_TOPLEFT; break;
+					case NE_RESIZE_CURSOR:	direction = FlatNativeLinuxLibrary.SIZE_TOPRIGHT; break;
+					case SW_RESIZE_CURSOR:	direction = FlatNativeLinuxLibrary.SIZE_BOTTOMLEFT; break;
+					case SE_RESIZE_CURSOR:	direction = FlatNativeLinuxLibrary.SIZE_BOTTOMRIGHT; break;
+				}
+
+				if( direction >= 0 && FlatNativeLinuxLibrary.moveOrResizeWindow( window, e, direction ) )
+					return;
+			}
+
 			centerComp.setBounds( 0, 0, resizeComp.getWidth(), resizeComp.getHeight() );
 			centerComp.setCursor( getPredefinedCursor( resizeDir ) );
 			centerComp.setVisible( true );
@@ -468,7 +480,7 @@ public abstract class FlatWindowResizer
 		}
 
 		@Override
-		protected void beginResizing( int resizeDir ) {
+		protected void beginResizing( int resizeDir, MouseEvent e ) {
 			int direction = 0;
 			switch( resizeDir ) {
 				case N_RESIZE_CURSOR:	direction = NORTH; break;
@@ -587,7 +599,7 @@ debug*/
 			dragRightOffset = windowBounds.x + windowBounds.width - xOnScreen;
 			dragBottomOffset = windowBounds.y + windowBounds.height - yOnScreen;
 
-			beginResizing( resizeDir );
+			beginResizing( resizeDir, e );
 		}
 
 		@Override

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatWindowsNativeWindowBorder.java

@@ -21,6 +21,7 @@ import java.awt.Dialog;
 import java.awt.EventQueue;
 import java.awt.Frame;
 import java.awt.GraphicsConfiguration;
+import java.awt.Insets;
 import java.awt.Point;
 import java.awt.Rectangle;
 import java.awt.Window;
@@ -39,6 +40,7 @@ import javax.swing.event.ChangeListener;
 import javax.swing.event.EventListenerList;
 import com.formdev.flatlaf.util.LoggingFacade;
 import com.formdev.flatlaf.util.SystemInfo;
+import com.formdev.flatlaf.util.UIScale;
 
 //
 // Interesting resources:
@@ -282,6 +284,8 @@ class FlatWindowsNativeWindowBorder
 			HTMINBUTTON = 8,
 			HTMAXBUTTON = 9,
 			HTTOP = 12,
+			HTTOPLEFT = 13,
+			HTTOPRIGHT = 14,
 			HTCLOSE = 20;
 
 		private Window window;
@@ -341,6 +345,31 @@ class FlatWindowsNativeWindowBorder
 			// scale-down mouse x/y because Swing coordinates/values may be scaled on a HiDPI screen
 			Point pt = scaleDown( x, y );
 
+			// limit top resize border to 4px, which seems to be standard for modern WinUI apps
+			if( isOnResizeBorder && pt.y > UIScale.scale( 4 ) )
+				isOnResizeBorder = false;
+
+			if( isOnResizeBorder ) {
+				Insets insets = window.getInsets();
+
+				// return HTTOPLEFT if mouse is over top resize border on left side
+				//   - hovering mouse shows top-left resize cursor
+				//   - left-click-and-drag resizes window
+				if( pt.x <= insets.left + UIScale.scale( 12 ) )
+					return HTTOPLEFT;
+
+				// return HTTOPRIGHT if mouse is over top resize border on right side
+				//   - hovering mouse shows top-right resize cursor
+				//   - left-click-and-drag resizes window
+				if( pt.x >= window.getWidth() - insets.right - UIScale.scale( 12 ) )
+					return HTTOPRIGHT;
+
+				// return HTTOP if mouse is over top resize border
+				//   - hovering mouse shows vertical resize cursor
+				//   - left-click-and-drag vertically resizes window
+				return HTTOP;
+			}
+
 			// return HTSYSMENU if mouse is over application icon
 			//   - left-click on HTSYSMENU area shows system menu
 			//   - double-left-click sends WM_CLOSE
@@ -364,12 +393,6 @@ class FlatWindowsNativeWindowBorder
 			if( contains( closeButtonBounds, pt ) )
 				return HTCLOSE;
 
-			// return HTTOP if mouse is over top resize border
-			//   - hovering mouse shows vertical resize cursor
-			//   - left-click and drag vertically resizes window
-			if( isOnResizeBorder )
-				return HTTOP;
-
 			boolean isOnTitleBar = (pt.y < titleBarHeight);
 			if( isOnTitleBar ) {
 				// return HTCLIENT if mouse is over any Swing component in title bar

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/StackUtils.java

@@ -21,7 +21,7 @@ import java.util.function.BiPredicate;
 /**
  * @author Karl Tauber
  */
-class StackUtils
+public class StackUtils
 {
 	private static final StackUtils INSTANCE = new StackUtilsImpl();
 

flatlaf-core/src/main/java/com/formdev/flatlaf/util/ColorFunctions.java

@@ -224,6 +224,9 @@ public class ColorFunctions
 		if( functions.length == 1 && functions[0] instanceof Mix ) {
 			Mix mixFunction = (Mix) functions[0];
 			return mix( color, mixFunction.color2, mixFunction.weight / 100 );
+		} else if( functions.length == 1 && functions[0] instanceof Mix2 ) {
+			Mix2 mixFunction = (Mix2) functions[0];
+			return mix( mixFunction.color1, color, mixFunction.weight / 100 );
 		}
 
 		// convert RGB to HSL
@@ -386,7 +389,11 @@ public class ColorFunctions
 	//---- class Mix ----------------------------------------------------------
 
 	/**
-	 * Mix two colors.
+	 * Mix two colors using {@link ColorFunctions#mix(Color, Color, float)}.
+	 * First color is passed to {@link #apply(float[])}.
+	 * Second color is {@link #color2}.
+	 * <p>
+	 * Use {@link Mix2} to tint or shade color.
 	 *
 	 * @since 1.6
 	 */
@@ -420,4 +427,44 @@ public class ColorFunctions
 			return String.format( "mix(#%08x,%.0f%%)", color2.getRGB(), weight );
 		}
 	}
+
+	//---- class Mix2 ---------------------------------------------------------
+
+	/**
+	 * Mix two colors using {@link ColorFunctions#mix(Color, Color, float)}.
+	 * First color is {@link #color1}.
+	 * Second color is passed to {@link #apply(float[])}.
+	 *
+	 * @since 3.6
+	 */
+	public static class Mix2
+		implements ColorFunction
+	{
+		public final Color color1;
+		public final float weight;
+
+		public Mix2( Color color1, float weight ) {
+			this.color1 = color1;
+			this.weight = weight;
+		}
+
+		@Override
+		public void apply( float[] hsla ) {
+			// convert from HSL to RGB because color mixing is done on RGB values
+			Color color2 = HSLColor.toRGB( hsla[0], hsla[1], hsla[2], hsla[3] / 100 );
+
+			// mix
+			Color color = mix( color1, color2, weight / 100 );
+
+			// convert RGB to HSL
+			float[] hsl = HSLColor.fromRGB( color );
+			System.arraycopy( hsl, 0, hsla, 0, hsl.length );
+			hsla[3] = (color.getAlpha() / 255f) * 100;
+		}
+
+		@Override
+		public String toString() {
+			return String.format( "mix2(#%08x,%.0f%%)", color1.getRGB(), weight );
+		}
+	}
 }

flatlaf-core/src/main/java/com/formdev/flatlaf/util/HiDPIUtils.java

@@ -16,6 +16,7 @@
 
 package com.formdev.flatlaf.util;
 
+import java.awt.Color;
 import java.awt.Component;
 import java.awt.Font;
 import java.awt.Graphics;
@@ -27,7 +28,9 @@ import java.awt.geom.Rectangle2D;
 import java.text.AttributedCharacterIterator;
 import javax.swing.JComponent;
 import javax.swing.RepaintManager;
+import com.formdev.flatlaf.FlatLaf;
 import com.formdev.flatlaf.FlatSystemProperties;
+import com.formdev.flatlaf.ui.StackUtils;
 
 /**
  * @author Karl Tauber
@@ -323,6 +326,19 @@ public class HiDPIUtils
 			public void drawGlyphVector( GlyphVector g, float x, float y ) {
 				super.drawGlyphVector( g, x, y + yCorrection );
 			}
+
+			@Override
+			public void fillRect( int x, int y, int width, int height ) {
+				// fix hard coded black color in HRuleView.paint() of '<hr noshade>'
+				if( super.getColor() == Color.black &&
+					StackUtils.wasInvokedFrom( "javax.swing.text.html.HRuleView", "paint", 4 ) )
+				{
+					super.setColor( FlatLaf.isLafDark() ? Color.lightGray : Color.darkGray );
+					super.fillRect( x, y, width, height );
+					super.setColor( Color.black );
+				} else
+					super.fillRect( x, y, width, height );
+			}
 		};
 	}
 

flatlaf-core/src/main/java/com/formdev/flatlaf/util/SystemInfo.java

@@ -31,6 +31,7 @@ public class SystemInfo
 	public static final boolean isWindows;
 	public static final boolean isMacOS;
 	public static final boolean isLinux;
+	/** @since 3.6 */ public static final boolean isUnknownOS;
 
 	// OS versions
 	public static final long osVersion;
@@ -59,6 +60,7 @@ public class SystemInfo
 	public static final boolean isJetBrainsJVM_11_orLater;
 
 	// UI toolkits
+	/** @since 3.6 */ public static final boolean isGNOME;
 	public static final boolean isKDE;
 
 	// other
@@ -75,6 +77,7 @@ public class SystemInfo
 		isWindows = osName.startsWith( "windows" );
 		isMacOS = osName.startsWith( "mac" );
 		isLinux = osName.startsWith( "linux" );
+		isUnknownOS = !isWindows && !isMacOS && !isLinux;
 
 		// OS versions
 		osVersion = scanVersion( System.getProperty( "os.version" ) );
@@ -104,7 +107,13 @@ public class SystemInfo
 		isJetBrainsJVM_11_orLater = isJetBrainsJVM && isJava_11_orLater;
 
 		// UI toolkits
-		isKDE = (isLinux && System.getenv( "KDE_FULL_SESSION" ) != null);
+		String desktop = isLinux ? System.getenv( "XDG_CURRENT_DESKTOP" ) : null;
+		isGNOME = (isLinux &&
+			(System.getenv( "GNOME_DESKTOP_SESSION_ID" ) != null ||
+			 (desktop != null && desktop.contains( "GNOME" ))));
+		isKDE = (isLinux &&
+			(System.getenv( "KDE_FULL_SESSION" ) != null ||
+			 (desktop != null && desktop.contains( "KDE" ))));
 
 		// other
 		isProjector = Boolean.getBoolean( "org.jetbrains.projector.server.enable" );

flatlaf-core/src/main/java/com/formdev/flatlaf/util/UIScale.java

@@ -27,7 +27,9 @@ import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
 import java.beans.PropertyChangeSupport;
 import java.lang.reflect.Method;
+import java.util.Arrays;
 import javax.swing.LookAndFeel;
+import javax.swing.UIDefaults;
 import javax.swing.UIManager;
 import javax.swing.plaf.DimensionUIResource;
 import javax.swing.plaf.FontUIResource;
@@ -61,16 +63,28 @@ import com.formdev.flatlaf.FlatSystemProperties;
  * or if the default font is changed.
  * The user scale factor is computed based on the used font.
  * The JRE does not scale anything.
- * So we have to invoke {@link #scale(float)} where necessary.
+ * So we have to invoke {@link #scale(int)} where necessary.
  * There is only one user scale factor for all displays.
  * The user scale factor may change if the active LaF, "defaultFont" or "Label.font" has changed.
  * If system scaling mode is available the user scale factor is usually 1,
  * but may be larger on Linux or if the default font is changed.
  *
+ * <h2>Zooming</h2>
+ *
+ * Zooming allows appliations to easily zoom their UI, if FlatLaf is active Laf.
+ * This is done by changing user scale factor and default font.
+ * There are methods to increase, decrease and reset zoom factor.
+ * <p>
+ * Note: Only standard Swing components are zoomed.
+ *       Custom components need to use {@link #scale(int)} to zoom their UI.
+ *
  * @author Karl Tauber
  */
 public class UIScale
 {
+	/** @since 3.7 */ public static final String PROP_USER_SCALE_FACTOR = "userScaleFactor";
+	/** @since 3.7 */ public static final String PROP_ZOOM_FACTOR = "zoomFactor";
+
 	private static final boolean DEBUG = false;
 
 	private static PropertyChangeSupport changeSupport;
@@ -87,7 +101,7 @@ public class UIScale
 		changeSupport.removePropertyChangeListener( listener );
 	}
 
-	//---- system scaling (Java 9) --------------------------------------------
+	//---- system scaling (Java 9+) -------------------------------------------
 
 	private static Boolean jreHiDPI;
 
@@ -135,10 +149,13 @@ public class UIScale
 		return (isSystemScalingEnabled() && gc != null) ? gc.getDefaultTransform().getScaleX() : 1;
 	}
 
-	//---- user scaling (Java 8) ----------------------------------------------
+	//---- user scaling (Java 8 / zooming) ------------------------------------
 
+	private static float unzoomedScaleFactor = 1;
 	private static float scaleFactor = 1;
 	private static boolean initialized;
+	private static boolean listenerInitialized; // use extra flag for unit tests
+	private static boolean ignoreFontChange;
 
 	private static void initialize() {
 		if( initialized )
@@ -148,33 +165,43 @@ public class UIScale
 		if( !isUserScalingEnabled() )
 			return;
 
+		initializeListener();
+
+		updateScaleFactor( true );
+	}
+
+	private static void initializeListener() {
+		if( listenerInitialized )
+			return;
+		listenerInitialized = true;
+
 		// listener to update scale factor if LaF changed, "defaultFont" or "Label.font" changed
 		PropertyChangeListener listener = new PropertyChangeListener() {
 			@Override
 			public void propertyChange( PropertyChangeEvent e ) {
 				switch( e.getPropertyName() ) {
 					case "lookAndFeel":
-						// it is not necessary (and possible) to remove listener of old LaF defaults
+						// it is not possible (and necessary) to remove listener of old LaF defaults
+						// because it is not possible to access the UIDefault object of the old LaF
 						if( e.getNewValue() instanceof LookAndFeel )
 							UIManager.getLookAndFeelDefaults().addPropertyChangeListener( this );
-						updateScaleFactor();
+						updateScaleFactor( true );
 						break;
 
 					case "defaultFont":
 					case "Label.font":
-						updateScaleFactor();
+						if( !ignoreFontChange )
+							updateScaleFactor( false );
 						break;
 				}
 			}
 		};
-		UIManager.addPropertyChangeListener( listener );
 		UIManager.getDefaults().addPropertyChangeListener( listener );
 		UIManager.getLookAndFeelDefaults().addPropertyChangeListener( listener );
-
-		updateScaleFactor();
+		UIManager.addPropertyChangeListener( listener );
 	}
 
-	private static void updateScaleFactor() {
+	private static void updateScaleFactor( boolean lafChanged ) {
 		if( !isUserScalingEnabled() )
 			return;
 
@@ -185,17 +212,20 @@ public class UIScale
 			return;
 		}
 
-		// use font size to calculate scale factor (instead of DPI)
-		// because even if we are on a HiDPI display it is not sure
-		// that a larger font size is set by the current LaF
-		// (e.g. can avoid large icons with small text)
+		// get font that is used to calculate scale factor
 		Font font = null;
 		if( UIManager.getLookAndFeel() instanceof FlatLaf )
 			font = UIManager.getFont( "defaultFont" );
 		if( font == null )
 			font = UIManager.getFont( "Label.font" );
 
-		setUserScaleFactor( computeFontScaleFactor( font ), true );
+		float fontScaleFactor = computeFontScaleFactor( font );
+		if( lafChanged && UIManager.getLookAndFeel() instanceof FlatLaf ) {
+			// FlatLaf has applied zoom factor in FlatLaf.initDefaultFont() to defaultFont,
+			// so we need to take it into account to get correct user scale factor
+			fontScaleFactor /= zoomFactor;
+		}
+		setUserScaleFactor( fontScaleFactor, true );
 	}
 
 	/**
@@ -204,7 +234,7 @@ public class UIScale
 	 * @since 2
 	 */
 	public static float computeFontScaleFactor( Font font ) {
-		if( SystemInfo.isWindows ) {
+		if( SystemInfo.isWindows && !inUnitTests ) {
 			// Special handling for Windows to be compatible with OS scaling,
 			// which distinguish between "screen scaling" and "text scaling".
 			//  - Windows "screen scaling" scales everything (text, icon, gaps, etc.)
@@ -335,7 +365,7 @@ public class UIScale
 	}
 
 	/**
-	 * Returns the user scale factor.
+	 * Returns the user scale factor (including zoom factor).
 	 */
 	public static float getUserScaleFactor() {
 		initialize();
@@ -345,27 +375,49 @@ public class UIScale
 	/**
 	 * Sets the user scale factor.
 	 */
-	private static void setUserScaleFactor( float scaleFactor, boolean normalize ) {
-		if( normalize ) {
-			if( scaleFactor < 1f ) {
-				scaleFactor = FlatSystemProperties.getBoolean( FlatSystemProperties.UI_SCALE_ALLOW_SCALE_DOWN, false )
-					? Math.round( scaleFactor * 10f ) / 10f // round small scale factor to 1/10
-					: 1f;
-			} else if( scaleFactor > 1f ) // round scale factor to 1/4
-				scaleFactor = Math.round( scaleFactor * 4f ) / 4f;
-		}
+	private static void setUserScaleFactor( float unzoomedScaleFactor, boolean normalize ) {
+		if( normalize )
+			unzoomedScaleFactor = normalizeScaleFactor( unzoomedScaleFactor );
 
 		// minimum scale factor
-		scaleFactor = Math.max( scaleFactor, 0.1f );
+		unzoomedScaleFactor = Math.max( unzoomedScaleFactor, 0.1f );
+
+		if( unzoomedScaleFactor == UIScale.unzoomedScaleFactor )
+			return;
+
+		if( DEBUG )
+			System.out.println( "Unzoomed scale factor " + UIScale.unzoomedScaleFactor + " --> " + unzoomedScaleFactor );
+
+		UIScale.unzoomedScaleFactor = unzoomedScaleFactor;
+		setScaleFactor( unzoomedScaleFactor * zoomFactor );
+	}
+
+	private static void setScaleFactor( float scaleFactor ) {
+		// round scale factor to 1/100
+		scaleFactor = Math.round( scaleFactor * 100f ) / 100f;
+
+		if( scaleFactor == UIScale.scaleFactor )
+			return;
 
 		float oldScaleFactor = UIScale.scaleFactor;
 		UIScale.scaleFactor = scaleFactor;
 
 		if( DEBUG )
-			System.out.println( "HiDPI scale factor " + scaleFactor );
+			System.out.println( "Scale factor          " + oldScaleFactor + " --> " + scaleFactor + "   (unzoomed " + UIScale.unzoomedScaleFactor + ")" );
 
 		if( changeSupport != null )
-			changeSupport.firePropertyChange( "userScaleFactor", oldScaleFactor, scaleFactor );
+			changeSupport.firePropertyChange( PROP_USER_SCALE_FACTOR, oldScaleFactor, scaleFactor );
+	}
+
+	private static float normalizeScaleFactor( float scaleFactor ) {
+		if( scaleFactor < 1f ) {
+			return FlatSystemProperties.getBoolean( FlatSystemProperties.UI_SCALE_ALLOW_SCALE_DOWN, false )
+				? Math.round( scaleFactor * 10f ) / 10f // round small scale factor to 1/10
+				: 1f;
+		} else if( scaleFactor > 1f ) // round scale factor to 1/4
+			return Math.round( scaleFactor * 4f ) / 4f;
+		else
+			return scaleFactor;
 	}
 
 	/**
@@ -451,4 +503,185 @@ public class UIScale
 				? new InsetsUIResource( scale( insets.top ), scale( insets.left ), scale( insets.bottom ), scale( insets.right ) )
 				: new Insets          ( scale( insets.top ), scale( insets.left ), scale( insets.bottom ), scale( insets.right ) ));
 	}
+
+	//---- zoom ---------------------------------------------------------------
+
+	private static float zoomFactor = 1;
+	private static float[] supportedZoomFactors = { 1f, 1.1f, 1.25f, 1.5f, 1.75f, 2f };
+
+	/**
+	 * Returns the current zoom factor. Default is {@code 1}.
+	 *
+	 * @since 3.7
+	 */
+	public static float getZoomFactor() {
+		return zoomFactor;
+	}
+
+	/**
+	 * Sets the zoom factor.
+	 * Also updates user scale factor and default font (if FlatLaf is active Laf).
+	 * <p>
+	 * UI needs to be updated if zoom factor has changed. E.g.:
+	 * <pre>{@code
+	 * if( UIScale.setZoomFactor( newZoomFactor ) )
+	 *     FlatLaf.updateUI();
+	 * }</pre>
+	 *
+	 * @param zoomFactor new zoom factor
+	 * @return {@code true} if zoom factor has changed
+	 * @since 3.7
+	 */
+	public static boolean setZoomFactor( float zoomFactor ) {
+		// minimum zoom factor
+		zoomFactor = Math.max( zoomFactor, 0.1f );
+
+		if( UIScale.zoomFactor == zoomFactor )
+			return false;
+
+		float oldZoomFactor = UIScale.zoomFactor;
+		UIScale.zoomFactor = zoomFactor;
+
+		if( DEBUG )
+			System.out.println( "Zoom factor           " + oldZoomFactor + " --> " + zoomFactor );
+
+		setScaleFactor( UIScale.unzoomedScaleFactor * zoomFactor );
+
+		if( initialized && UIManager.getLookAndFeel() instanceof FlatLaf ) {
+			// see also FlatLaf.initDefaultFont()
+			UIDefaults defaults = UIManager.getLookAndFeelDefaults();
+			Font font = defaults.getFont( "defaultFont" );
+			int unzoomedSize = defaults.getInt( "defaultFont.unzoomedSize" );
+			if( unzoomedSize == 0 ) {
+				unzoomedSize = font.getSize();
+				defaults.put( "defaultFont.unzoomedSize", unzoomedSize );
+			}
+
+			// update "defaultFont"
+			ignoreFontChange = true;
+			try {
+				// get application default font before updating Laf default font
+				Font appFont = UIManager.getFont( "defaultFont" );
+
+				// update Laf default font
+				int newFontSize = Math.max( Math.round( unzoomedSize * zoomFactor ), 1 );
+				defaults.put( "defaultFont", new FontUIResource( font.deriveFont( (float) newFontSize ) ) );
+
+				if( DEBUG )
+					System.out.println( "Zoom Laf font         " + font.getSize() + " --> " + newFontSize + "   (unzoomed " + unzoomedSize + ")" );
+
+				// check whether application has changed default font
+				if( appFont != font ) {
+					// application has own default font --> also zoom it
+					int newAppFontSize = Math.max( Math.round( (appFont.getSize() / oldZoomFactor) * zoomFactor ), 1 );
+					UIManager.put( "defaultFont", appFont.deriveFont( (float) newAppFontSize ) );
+
+					if( DEBUG )
+						System.out.println( "Zoom app font         " + appFont.getSize() + " --> " + newAppFontSize );
+				}
+			} finally {
+				ignoreFontChange = false;
+			}
+		}
+
+		if( changeSupport != null )
+			changeSupport.firePropertyChange( PROP_ZOOM_FACTOR, oldZoomFactor, zoomFactor );
+
+		return true;
+	}
+
+	/**
+	 * Increases zoom factor using next greater factor in supported factors array.
+	 * <p>
+	 * UI needs to be updated if zoom factor has changed. E.g.:
+	 * <pre>{@code
+	 * if( UIScale.zoomIn() )
+	 *     FlatLaf.updateUI();
+	 * }</pre>
+	 *
+	 * @return {@code true} if zoom factor has changed
+	 * @see #getSupportedZoomFactors()
+	 * @since 3.7
+	 */
+	public static boolean zoomIn() {
+		int i = Arrays.binarySearch( supportedZoomFactors, zoomFactor );
+		int next = (i >= 0) ? i + 1 : -i - 1;
+		if( next >= supportedZoomFactors.length )
+			return false;
+
+		return setZoomFactor( supportedZoomFactors[next] );
+	}
+
+	/**
+	 * Decreases zoom factor using next smaller factor in supported factors array.
+	 * <p>
+	 * UI needs to be updated if zoom factor has changed. E.g.:
+	 * <pre>{@code
+	 * if( UIScale.zoomOut() )
+	 *     FlatLaf.updateUI();
+	 * }</pre>
+	 *
+	 * @return {@code true} if zoom factor has changed
+	 * @see #getSupportedZoomFactors()
+	 * @since 3.7
+	 */
+	public static boolean zoomOut() {
+		int i = Arrays.binarySearch( supportedZoomFactors, zoomFactor );
+		int prev = (i >= 0) ? i - 1 : -i - 2;
+		if( prev < 0 )
+			return false;
+
+		return setZoomFactor( supportedZoomFactors[prev] );
+	}
+
+	/**
+	 * Resets zoom factor to {@code 1}.
+	 * <p>
+	 * UI needs to be updated if zoom factor has changed. E.g.:
+	 * <pre>{@code
+	 * if( UIScale.zoomReset() )
+	 *     FlatLaf.updateUI();
+	 * }</pre>
+	 *
+	 * @return {@code true} if zoom factor has changed
+	 * @since 3.7
+	 */
+	public static boolean zoomReset() {
+		return setZoomFactor( 1 );
+	}
+
+	/**
+	 * Returns the supported zoom factors used for {@link #zoomIn()} and {@link #zoomOut()}.
+	 * <p>
+	 * Default is {@code [ 1f, 1.1f, 1.25f, 1.5f, 1.75f, 2f ]}.
+	 *
+	 * @since 3.7
+	 */
+	public static float[] getSupportedZoomFactors() {
+		return supportedZoomFactors.clone();
+	}
+
+	/**
+	 * Sets the supported zoom factors used for {@link #zoomIn()} and {@link #zoomOut()}.
+	 *
+	 * @since 3.7
+	 */
+	public static void setSupportedZoomFactors( float[] supportedZoomFactors ) {
+		UIScale.supportedZoomFactors = supportedZoomFactors.clone();
+		Arrays.sort( UIScale.supportedZoomFactors );
+
+		if( Arrays.binarySearch( UIScale.supportedZoomFactors, 1f ) < 0 )
+			throw new IllegalArgumentException( "supportedZoomFactors array must contain value 1f" );
+	}
+
+	//---- unit testing -------------------------------------------------------
+
+	static boolean inUnitTests;
+
+	static void tests_uninitialize() {
+		initialized = false;
+		unzoomedScaleFactor = 1;
+		scaleFactor = 1;
+		zoomFactor = 1;
+	}
 }

flatlaf-core/src/main/resources/com/formdev/flatlaf/FlatDarculaLaf.properties

@@ -61,7 +61,6 @@ Component.arrowType = triangle
 #---- ProgressBar ----
 
 ProgressBar.foreground = darken(@foreground,10%)
-ProgressBar.selectionForeground = @background
 
 
 #---- RadioButton ----

flatlaf-core/src/main/resources/com/formdev/flatlaf/FlatDarkLaf.properties

@@ -34,7 +34,7 @@
 
 # general background and foreground (text color)
 @background = #3c3f41
-@foreground = #bbb
+@foreground = #ddd
 @disabledBackground = @background
 @disabledForeground = shade(@foreground,25%)
 
@@ -45,7 +45,7 @@
 
 # selection
 @selectionBackground = @accentSelectionBackground
-@selectionForeground = contrast(@selectionBackground, @background, @foreground, 25%)
+@selectionForeground = contrast(@selectionBackground, shade(@background), tint(@foreground), 25%)
 @selectionInactiveBackground = spin(saturate(shade(@selectionBackground,70%),20%),-15)
 @selectionInactiveForeground = @foreground
 
@@ -187,6 +187,8 @@ Component.error.borderColor = desaturate($Component.error.focusedBorderColor,25%
 Component.error.focusedBorderColor = #8b3c3c
 Component.warning.borderColor = darken(desaturate($Component.warning.focusedBorderColor,20%),10%)
 Component.warning.focusedBorderColor = #ac7920
+Component.success.borderColor = desaturate($Component.success.focusedBorderColor,25%)
+Component.success.focusedBorderColor = #648b3c
 Component.custom.borderColor = desaturate(#f00,50%,relative derived noAutoInverse)
 
 
@@ -262,7 +264,7 @@ PopupMenu.hoverScrollArrowBackground = lighten(@background,5%)
 ProgressBar.background = lighten(@background,8%)
 ProgressBar.foreground = @accentSliderColor
 ProgressBar.selectionBackground = @foreground
-ProgressBar.selectionForeground = contrast($ProgressBar.foreground, @background, @foreground, 25%)
+ProgressBar.selectionForeground = contrast($ProgressBar.foreground, shade(@background), tint(@foreground), 25%)
 
 
 #---- RootPane ----
@@ -274,7 +276,7 @@ RootPane.inactiveBorderColor = lighten(@background,5%,derived)
 #---- ScrollBar ----
 
 ScrollBar.track = lighten(@background,1%,derived noAutoInverse)
-ScrollBar.thumb = lighten($ScrollBar.track,10%,derived noAutoInverse)
+ScrollBar.thumb = lighten($ScrollBar.track,15%,derived noAutoInverse)
 ScrollBar.hoverTrackColor = lighten($ScrollBar.track,4%,derived noAutoInverse)
 ScrollBar.hoverThumbColor = lighten($ScrollBar.thumb,10%,derived noAutoInverse)
 ScrollBar.pressedThumbColor = lighten($ScrollBar.thumb,15%,derived noAutoInverse)
@@ -284,7 +286,7 @@ ScrollBar.pressedButtonBackground = lighten(@background,10%,derived noAutoInvers
 
 #---- Separator ----
 
-Separator.foreground = tint(@background,10%)
+Separator.foreground = tint(@background,15%)
 
 
 #---- Slider ----
@@ -341,8 +343,13 @@ TableHeader.bottomSeparatorColor = $TableHeader.separatorColor
 #---- TitlePane ----
 
 TitlePane.embeddedForeground = darken($TitlePane.foreground,15%)
-TitlePane.buttonHoverBackground = lighten($TitlePane.background,15%,derived)
-TitlePane.buttonPressedBackground = lighten($TitlePane.background,10%,derived)
+TitlePane.buttonHoverBackground = lighten($TitlePane.background,10%,derived)
+TitlePane.buttonPressedBackground = lighten($TitlePane.background,6%,derived)
+
+# Linux
+[linux]TitlePane.buttonBackground = lighten($TitlePane.background,5%,derived)
+[linux]TitlePane.buttonHoverBackground = lighten($TitlePane.background,10%,derived)
+[linux]TitlePane.buttonPressedBackground = lighten($TitlePane.background,15%,derived)
 
 
 #---- ToggleButton ----

flatlaf-core/src/main/resources/com/formdev/flatlaf/FlatLaf.properties

@@ -50,6 +50,9 @@ mini.font = -3
 #defaultFont = ...
 
 # font weights
+#  fallback for unknown platform
+light.font = +0
+semibold.font = +0
 #  Windows
 [win]light.font = "Segoe UI Light"
 [win]semibold.font = "Segoe UI Semibold"
@@ -59,15 +62,12 @@ mini.font = -3
 #  Linux
 [linux]light.font = "Lato Light", "Ubuntu Light", "Cantarell Light"
 [linux]semibold.font = "Lato Semibold", "Ubuntu Medium", "Montserrat SemiBold"
-#  fallback for unknown platform
-light.font = +0
-semibold.font = +0
 
 # monospaced
+monospaced.font = Monospaced
 [win]monospaced.font = Monospaced
 [mac]monospaced.font = Menlo, Monospaced
 [linux]monospaced.font = "Liberation Mono", "Ubuntu Mono", Monospaced
-monospaced.font = Monospaced
 
 # styles
 [style].h00 = font: $h00.font
@@ -564,8 +564,8 @@ RadioButtonMenuItem.background = @menuBackground
 #---- RootPane ----
 
 RootPane.border = com.formdev.flatlaf.ui.FlatRootPaneUI$FlatWindowBorder
-RootPane.borderDragThickness = 5
-RootPane.cornerDragWidth = 16
+RootPane.borderDragThickness = 6
+RootPane.cornerDragWidth = 32
 RootPane.honorFrameMinimumSizeOnResize = false
 RootPane.honorDialogMinimumSizeOnResize = true
 
@@ -574,12 +574,12 @@ RootPane.honorDialogMinimumSizeOnResize = true
 
 ScrollBar.width = 10
 ScrollBar.minimumButtonSize = 12,12
-ScrollBar.minimumThumbSize = 10,10
+ScrollBar.minimumThumbSize = 18,18
 ScrollBar.maximumThumbSize = 100000,100000
 ScrollBar.trackInsets = 0,0,0,0
-ScrollBar.thumbInsets = 0,0,0,0
+ScrollBar.thumbInsets = 2,2,2,2
 ScrollBar.trackArc = 0
-ScrollBar.thumbArc = 0
+ScrollBar.thumbArc = 999
 ScrollBar.hoverThumbWithTrack = false
 ScrollBar.pressedThumbWithTrack = false
 ScrollBar.showButtons = false
@@ -588,15 +588,8 @@ ScrollBar.buttonArrowColor = @buttonArrowColor
 ScrollBar.buttonDisabledArrowColor = @buttonDisabledArrowColor
 ScrollBar.allowsAbsolutePositioning = true
 
-[mac]ScrollBar.minimumThumbSize = 18,18
-[mac]ScrollBar.thumbInsets = 2,2,2,2
-[mac]ScrollBar.thumbArc = 999
 [mac]ScrollBar.hoverThumbWithTrack = true
 
-[linux]ScrollBar.minimumThumbSize = 18,18
-[linux]ScrollBar.thumbInsets = 2,2,2,2
-[linux]ScrollBar.thumbArc = 999
-
 
 #---- ScrollPane ----
 
@@ -703,7 +696,7 @@ TabbedPane.hiddenTabsNavigation = moreTabsButton
 TabbedPane.tabAreaAlignment = leading
 # allowed values: leading, trailing or center
 TabbedPane.tabAlignment = center
-# allowed values: preferred, equal or compact
+# allowed values: preferred, equal, compact or iconsOnly
 TabbedPane.tabWidthMode = preferred
 # allowed values: none, auto, left or right
 TabbedPane.tabRotation = none
@@ -823,9 +816,14 @@ TitlePane.iconMargins = 3,8,3,8
 TitlePane.titleMargins = 3,0,3,0
 TitlePane.titleMinimumWidth = 60
 TitlePane.buttonSize = 44,30
+TitlePane.buttonInsets = 0,0,0,0
+TitlePane.buttonArc = 0
 TitlePane.buttonMinimumWidth = 30
 TitlePane.buttonMaximizedHeight = 22
 TitlePane.buttonSymbolHeight = 10
+TitlePane.buttonsGap = 0
+TitlePane.buttonsMargins = 0,0,0,0
+TitlePane.buttonsFillVertically = true
 TitlePane.centerTitle = false
 TitlePane.centerTitleIfMenuBarEmbedded = true
 TitlePane.showIconBesideTitle = false
@@ -856,6 +854,27 @@ TitlePane.small.iconifyIcon = com.formdev.flatlaf.icons.FlatWindowIconifyIcon, s
 TitlePane.small.maximizeIcon = com.formdev.flatlaf.icons.FlatWindowMaximizeIcon, small
 TitlePane.small.restoreIcon = com.formdev.flatlaf.icons.FlatWindowRestoreIcon, small
 
+# Linux
+[linux]TitlePane.buttonSize = 26,26
+[linux]TitlePane.buttonInsets = 2,2,2,2
+[linux]TitlePane.buttonArc = 999
+[linux]TitlePane.buttonMaximizedHeight = -1
+[linux]TitlePane.buttonSymbolHeight = 8
+[linux]TitlePane.buttonsGap = 8
+[linux]TitlePane.buttonsMargins = 4,4,4,4
+[linux]TitlePane.buttonsFillVertically = false
+[linux]TitlePane.small.buttonSize = 20,20
+[linux]TitlePane.small.buttonInsets = 1,1,1,1
+[linux]TitlePane.small.buttonSymbolHeight = 6
+[linux]TitlePane.small.buttonsGap = 4
+[linux]TitlePane.small.buttonsMargins = 2,2,2,2
+[linux]TitlePane.closeBackground = $?TitlePane.buttonBackground
+[linux]TitlePane.closeInactiveBackground = $?TitlePane.buttonInactiveBackground
+[linux]TitlePane.closeHoverBackground = $?TitlePane.buttonHoverBackground
+[linux]TitlePane.closePressedBackground = $?TitlePane.buttonPressedBackground
+[linux]TitlePane.closeHoverForeground = $?TitlePane.foreground
+[linux]TitlePane.closePressedForeground = $?TitlePane.foreground
+
 
 #---- ToggleButton ----
 
@@ -934,6 +953,7 @@ Tree.rendererMargins = 1,2,1,2
 Tree.selectionInsets = 0,0,0,0
 Tree.selectionArc = 0
 Tree.wideSelection = true
+Tree.wideCellRenderer = false
 Tree.repaintWholeRow = true
 Tree.paintLines = false
 Tree.showCellFocusIndicator = false
@@ -957,6 +977,24 @@ Tree.icon.openColor = @icon
 
 #---- Styles ------------------------------------------------------------------
 
+#---- scale icons ----
+
+@largeScale = 1.125
+@mediumScale = 0.875
+@smallScale = 0.8125
+@miniScale = 0.75
+
+[style]CheckBox.large = icon.scale: @largeScale; iconTextGap: 5
+[style]CheckBox.medium = icon.scale: @mediumScale
+[style]CheckBox.small = icon.scale: @smallScale; iconTextGap: 3
+[style]CheckBox.mini = icon.scale: @miniScale; iconTextGap: 3
+
+[style]RadioButton.large = icon.scale: @largeScale; iconTextGap: 5
+[style]RadioButton.medium = icon.scale: @mediumScale
+[style]RadioButton.small = icon.scale: @smallScale; iconTextGap: 3
+[style]RadioButton.mini = icon.scale: @miniScale; iconTextGap: 3
+
+
 #---- inTextField ----
 # for leading/trailing components in text fields
 

flatlaf-core/src/main/resources/com/formdev/flatlaf/FlatLightLaf.properties

@@ -36,7 +36,7 @@
 @background = #f2f2f2
 @foreground = #000
 @disabledBackground = @background
-@disabledForeground = tint(@foreground,55%)
+@disabledForeground = tint(@foreground,50%)
 
 # component background
 @buttonBackground = lighten(@background,5%)
@@ -194,6 +194,8 @@ Component.error.borderColor = lighten(desaturate($Component.error.focusedBorderC
 Component.error.focusedBorderColor = #e53e4d
 Component.warning.borderColor = lighten(saturate($Component.warning.focusedBorderColor,25%),20%)
 Component.warning.focusedBorderColor = #e2a53a
+Component.success.borderColor = lighten(desaturate($Component.success.focusedBorderColor,20%),25%)
+Component.success.focusedBorderColor = #14dc92
 Component.custom.borderColor = lighten(desaturate(#f00,20%,derived noAutoInverse),25%,derived noAutoInverse)
 
 
@@ -280,7 +282,7 @@ RootPane.inactiveBorderColor = darken(@background,30%,derived)
 #---- ScrollBar ----
 
 ScrollBar.track = lighten(@background,1%,derived noAutoInverse)
-ScrollBar.thumb = darken($ScrollBar.track,10%,derived noAutoInverse)
+ScrollBar.thumb = darken($ScrollBar.track,15%,derived noAutoInverse)
 ScrollBar.hoverTrackColor = darken($ScrollBar.track,3%,derived noAutoInverse)
 ScrollBar.hoverThumbColor = darken($ScrollBar.thumb,10%,derived noAutoInverse)
 ScrollBar.pressedThumbColor = darken($ScrollBar.thumb,20%,derived noAutoInverse)
@@ -347,8 +349,13 @@ TableHeader.bottomSeparatorColor = $TableHeader.separatorColor
 #---- TitlePane ----
 
 TitlePane.embeddedForeground = lighten($TitlePane.foreground,35%)
-TitlePane.buttonHoverBackground = darken($TitlePane.background,10%,derived)
-TitlePane.buttonPressedBackground = darken($TitlePane.background,8%,derived)
+TitlePane.buttonHoverBackground = darken($TitlePane.background,5%,derived)
+TitlePane.buttonPressedBackground = darken($TitlePane.background,3%,derived)
+
+# Linux
+[linux]TitlePane.buttonBackground = darken($TitlePane.background,5%,derived)
+[linux]TitlePane.buttonHoverBackground = darken($TitlePane.background,10%,derived)
+[linux]TitlePane.buttonPressedBackground = darken($TitlePane.background,15%,derived)
 
 
 #---- ToggleButton ----

flatlaf-core/src/main/resources/com/formdev/flatlaf/IntelliJTheme$ThemeLaf.properties

@@ -21,27 +21,41 @@
 #  - https://www.formdev.com/flatlaf/properties-files/
 #  - https://www.formdev.com/flatlaf/how-to-customize/
 #
+# Properties in this file are applied in following order:
+#   1. properties without '{...}' and without '[...]' prefix
+#   2. properties specified in .theme.json file
+#   3. properties starting with '{*}'
+#   4. properties starting with '{*-light}' or '{*-dark}'
+#   5. properties starting with '{author-<author>}',
+#      where '<author>' is replaced with "author" value from .theme.json file 
+#   6. properties starting with '{<name>---<author>}',
+#      where '<name>' and '<author>' are replaced with "name" and "author" values from .theme.json file 
+#   7. properties starting with '{<name>}',
+#      where '<name>' is replaced with "name" value from .theme.json file 
+#   8. properties with '[...]' prefix
+#
+
 
 #---- system colors ----
 
 # fix (most) system colors because they are usually not set in .json files
-desktop = lazy(TextField.background)
-activeCaptionText = lazy(TextField.foreground)
-inactiveCaptionText = lazy(TextField.foreground)
-window = lazy(Panel.background)
-windowBorder = lazy(TextField.foreground)
-windowText = lazy(TextField.foreground)
-menu = lazy(Menu.background)
-menuText = lazy(Menu.foreground)
-text = lazy(TextField.background)
-textText = lazy(TextField.foreground)
-textHighlight = lazy(TextField.selectionBackground)
-textHighlightText = lazy(TextField.selectionForeground)
-textInactiveText = lazy(TextField.inactiveForeground)
-control = lazy(Panel.background)
-controlText = lazy(TextField.foreground)
-info = lazy(ToolTip.background)
-infoText = lazy(ToolTip.foreground)
+desktop = $TextField.background
+activeCaptionText = $TextField.foreground
+inactiveCaptionText = $TextField.foreground
+window = $Panel.background
+windowBorder = $TextField.foreground
+windowText = $TextField.foreground
+menu = $Menu.background
+menuText = $Menu.foreground
+text = $TextField.background
+textText = $TextField.foreground
+textHighlight = $TextField.selectionBackground
+textHighlightText = $TextField.selectionForeground
+textInactiveText = $TextField.inactiveForeground
+control = $Panel.background
+controlText = $TextField.foreground
+info = $ToolTip.background
+infoText = $ToolTip.foreground
 
 
 #---- variables ----
@@ -49,26 +63,13 @@ infoText = lazy(ToolTip.foreground)
 # make sure that accent color (set via FlatLaf.setSystemColorGetter()) is ignored 
 @accentColor = null
 
+# use same accent color for checkmark, slider, tab underline, etc.
+@accentBase2Color = @accentBaseColor
+
 # use fixed color because it is used in borders
 @cellFocusColor = #222
 
 
-#---- Button ----
-
-Button.startBackground = $Button.background
-Button.endBackground = $Button.background
-Button.startBorderColor = $Button.borderColor
-Button.endBorderColor = $Button.borderColor
-
-Button.default.startBackground = $Button.default.background
-Button.default.endBackground = $Button.default.background
-Button.default.startBorderColor = $Button.default.borderColor
-Button.default.endBorderColor = $Button.default.borderColor
-
-Button.hoverBorderColor = null
-Button.default.hoverBorderColor = null
-
-
 #---- CheckBoxMenuItem ----
 
 # colors from intellij/checkmark.svg and darcula/checkmark.svg
@@ -76,34 +77,33 @@ Button.default.hoverBorderColor = null
 [dark]CheckBoxMenuItem.icon.checkmarkColor=#fff9
 
 
-#---- Component ----
-
-Component.accentColor = lazy(ProgressBar.foreground)
-
-
-#---- HelpButton ----
-
-HelpButton.hoverBorderColor = null
-
-
 #---- Slider ----
 
-Slider.focusedColor = fade($Component.focusColor,40%,derived)
+# this "reverses" definition in FlatLightLaf/FlatDarkLaf.properties 
+Slider.trackValueColor = $Slider.thumbColor
+Slider.thumbColor = @accentSliderColor
+
+
+#---- Spinner ----
+
+# Spinner arrow button always has same colors as ComboBox arrow button
+Spinner.buttonBackground = $ComboBox.buttonEditableBackground
+Spinner.buttonArrowColor = $ComboBox.buttonArrowColor
+Spinner.buttonDisabledArrowColor = $ComboBox.buttonDisabledArrowColor
 
 
 #---- TabbedPane ----
 
 # colors from JBUI.CurrentTheme.DefaultTabs.inactiveUnderlineColor()
-[light]TabbedPane.inactiveUnderlineColor = #9ca7b8
-[dark]TabbedPane.inactiveUnderlineColor = #747a80
+{*-light}TabbedPane.inactiveUnderlineColor = #9ca7b8
+{*-dark}TabbedPane.inactiveUnderlineColor = #747a80
 
 
 #---- ToggleButton ----
 
-ToggleButton.startBackground = $ToggleButton.background
-ToggleButton.endBackground = $ToggleButton.background
-[dark]ToggleButton.selectedBackground = lighten($ToggleButton.background,15%,derived)
-[dark]ToggleButton.disabledSelectedBackground = lighten($ToggleButton.background,5%,derived)
+{*}ToggleButton.background = $Button.background
+{*-dark}ToggleButton.selectedBackground = lighten($ToggleButton.background,15%,derived)
+{*-dark}ToggleButton.disabledSelectedBackground = lighten($ToggleButton.background,5%,derived)
 
 
 #---- theme specific ----
@@ -112,357 +112,434 @@ ToggleButton.endBackground = $ToggleButton.background
 @ijMenuCheckBackgroundL20 = lighten(@selectionBackground,20%,derived noAutoInverse)
 @ijMenuCheckBackgroundD10 = darken(@selectionBackground,10%,derived noAutoInverse)
 
-@ijTextBackgroundL3 = lighten(Panel.background,3%,lazy)
-@ijTextBackgroundL4 = lighten(Panel.background,4%,lazy)
+@ijSeparatorLight = shade(@background,15%)
+@ijSeparatorDark = tint(@background,25%)
 
-[Arc_Theme]CheckBoxMenuItem.foreground = lazy(MenuItem.foreground)
-[Arc_Theme]PopupMenu.foreground = lazy(MenuItem.foreground)
-[Arc_Theme]RadioButtonMenuItem.foreground = lazy(MenuItem.foreground)
-[Arc_Theme]ProgressBar.selectionBackground = #000
-[Arc_Theme]ProgressBar.selectionForeground = #fff
-[Arc_Theme]List.selectionInactiveForeground = #fff
-[Arc_Theme]Table.selectionInactiveForeground = #fff
-[Arc_Theme]Tree.selectionInactiveForeground = #fff
+@ijTextBackgroundL3 = lighten($Panel.background,3%)
+@ijTextBackgroundL4 = lighten($Panel.background,4%)
 
-[Arc_Theme_-_Orange]CheckBoxMenuItem.foreground = lazy(MenuItem.foreground)
-[Arc_Theme_-_Orange]PopupMenu.foreground = lazy(MenuItem.foreground)
-[Arc_Theme_-_Orange]RadioButtonMenuItem.foreground = lazy(MenuItem.foreground)
-[Arc_Theme_-_Orange]ProgressBar.selectionBackground = #000
-[Arc_Theme_-_Orange]ProgressBar.selectionForeground = #fff
-[Arc_Theme_-_Orange]List.selectionInactiveForeground = #fff
-[Arc_Theme_-_Orange]Table.selectionInactiveForeground = #fff
-[Arc_Theme_-_Orange]Tree.selectionInactiveForeground = #fff
+{Arc_Theme}@selectionInactiveForeground = @selectionForeground
+{Arc_Theme}CheckBoxMenuItem.foreground = $MenuItem.foreground
+{Arc_Theme}PopupMenu.foreground = $MenuItem.foreground
+{Arc_Theme}RadioButtonMenuItem.foreground = $MenuItem.foreground
 
-[Arc_Theme_Dark]CheckBoxMenuItem.foreground = lazy(MenuItem.foreground)
-[Arc_Theme_Dark]PopupMenu.foreground = lazy(MenuItem.foreground)
-[Arc_Theme_Dark]RadioButtonMenuItem.foreground = lazy(MenuItem.foreground)
-[Arc_Theme_Dark]ProgressBar.selectionBackground = #ddd
-[Arc_Theme_Dark]ProgressBar.selectionForeground = #ddd
-[Arc_Theme_Dark]ToolBar.separatorColor = lazy(Separator.foreground)
+{Arc_Theme_-_Orange}@selectionInactiveForeground = @selectionForeground
+{Arc_Theme_-_Orange}CheckBoxMenuItem.foreground = $MenuItem.foreground
+{Arc_Theme_-_Orange}PopupMenu.foreground = $MenuItem.foreground
+{Arc_Theme_-_Orange}RadioButtonMenuItem.foreground = $MenuItem.foreground
 
-[Arc_Theme_Dark_-_Orange]CheckBoxMenuItem.foreground = lazy(MenuItem.foreground)
-[Arc_Theme_Dark_-_Orange]PopupMenu.foreground = lazy(MenuItem.foreground)
-[Arc_Theme_Dark_-_Orange]RadioButtonMenuItem.foreground = lazy(MenuItem.foreground)
-[Arc_Theme_Dark_-_Orange]ProgressBar.selectionBackground = #ddd
-[Arc_Theme_Dark_-_Orange]ProgressBar.selectionForeground = #fff
-[Arc_Theme_Dark_-_Orange]ToolBar.separatorColor = lazy(Separator.foreground)
+{Arc_Theme_Dark}CheckBoxMenuItem.foreground = $MenuItem.foreground
+{Arc_Theme_Dark}PopupMenu.foreground = $MenuItem.foreground
+{Arc_Theme_Dark}RadioButtonMenuItem.foreground = $MenuItem.foreground
+{Arc_Theme_Dark}ToolBar.background = @background
 
-[Carbon]Table.selectionBackground = lazy(List.selectionBackground)
-[Carbon]Table.selectionInactiveForeground = lazy(List.selectionInactiveForeground)
-[Carbon]TextField.background = @ijTextBackgroundL4
+{Arc_Theme_Dark_-_Orange}CheckBoxMenuItem.foreground = $MenuItem.foreground
+{Arc_Theme_Dark_-_Orange}PopupMenu.foreground = $MenuItem.foreground
+{Arc_Theme_Dark_-_Orange}ProgressBar.selectionForeground = #fff
+{Arc_Theme_Dark_-_Orange}RadioButtonMenuItem.foreground = $MenuItem.foreground
+{Arc_Theme_Dark_-_Orange}ToolBar.background = @background
 
-[Cobalt_2]Component.accentColor = lazy(Component.focusColor)
-[Cobalt_2]CheckBox.icon.background = #002946
-[Cobalt_2]CheckBox.icon.checkmarkColor = #002946
-[Cobalt_2]MenuItem.checkBackground = @ijMenuCheckBackgroundL10
-[Cobalt_2]MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL10
-[Cobalt_2]ComboBox.background = @ijTextBackgroundL3
-[Cobalt_2]ComboBox.buttonBackground = @ijTextBackgroundL3
-[Cobalt_2]TextField.background = @ijTextBackgroundL3
-[Cobalt_2]Table.background = lazy(List.background)
-[Cobalt_2]Tree.background = lazy(List.background)
+{Carbon}Separator.foreground = @ijSeparatorDark
+{Carbon}ToolBar.separatorColor = $Separator.foreground
+{Carbon}Table.selectionBackground = $List.selectionBackground
+{Carbon}TextField.background = @ijTextBackgroundL4
 
-[Cyan_light]MenuItem.checkBackground = @ijMenuCheckBackgroundL20
-[Cyan_light]MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL20
+{Cobalt_2}@accentBaseColor = $ColorPalette.hue3
+{Cobalt_2}CheckBox.icon.background = @background
+{Cobalt_2}MenuItem.checkBackground = @ijMenuCheckBackgroundL10
+{Cobalt_2}MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL10
+{Cobalt_2}ComboBox.background = @ijTextBackgroundL3
+{Cobalt_2}Slider.thumbColor = $ProgressBar.foreground
+{Cobalt_2}Slider.disabledTrackColor = $Separator.foreground
+{Cobalt_2}TextField.background = @ijTextBackgroundL3
+{Cobalt_2}Table.background = $List.background
+{Cobalt_2}Tree.background = $List.background
 
-[Dark_Flat_Theme]*.inactiveForeground = #808080
-[Dark_Flat_Theme]Component.accentColor = lazy(List.selectionBackground)
-[Dark_Flat_Theme]TableHeader.background = #3B3B3B
-[Dark_Flat_Theme]TextPane.foreground = lazy(TextField.foreground)
-[Dark_Flat_Theme]CheckBoxMenuItem.selectionForeground = lazy(MenuItem.selectionForeground)
-[Dark_Flat_Theme]List.selectionForeground = lazy(Tree.selectionForeground)
-[Dark_Flat_Theme]RadioButtonMenuItem.selectionForeground = lazy(MenuItem.selectionForeground)
-[Dark_Flat_Theme]Separator.foreground = lazy(ToolBar.separatorColor)
+{Cyan_light}@disabledForeground = tint(@foreground,30%)
+{Cyan_light}*.disabledText = @disabledForeground
+{Cyan_light}*.disabledForeground = @disabledForeground
+{Cyan_light}*.inactiveForeground = @disabledForeground
+{Cyan_light}Button.background = @buttonBackground
+{Cyan_light}MenuItem.checkBackground = @ijMenuCheckBackgroundL20
+{Cyan_light}MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL20
 
-[Dark_purple]Slider.focusedColor = fade($Component.focusColor,70%,derived)
+{Dark_Flat_Theme}@accentBaseColor = $TabbedPane.underlineColor
+{Dark_Flat_Theme}@disabledForeground = #808080
+{Dark_Flat_Theme}*.disabledText = @disabledForeground
+{Dark_Flat_Theme}*.disabledForeground = @disabledForeground
+{Dark_Flat_Theme}*.inactiveForeground = @disabledForeground
+{Dark_Flat_Theme}TableHeader.background = #3B3B3B
+{Dark_Flat_Theme}CheckBoxMenuItem.selectionForeground = $MenuItem.selectionForeground
+{Dark_Flat_Theme}ComboBox.background = $TextField.background
+{Dark_Flat_Theme}ComboBox.buttonBackground = $ComboBox.background
+{Dark_Flat_Theme}List.selectionForeground = $Tree.selectionForeground
+{Dark_Flat_Theme}ProgressBar.selectionForeground = @foreground
+{Dark_Flat_Theme}RadioButtonMenuItem.selectionForeground = $MenuItem.selectionForeground
+{Dark_Flat_Theme}Separator.foreground = @ijSeparatorDark
+{Dark_Flat_Theme}Slider.trackColor = $ProgressBar.background
+{Dark_Flat_Theme}Slider.thumbColor = fade($ProgressBar.foreground,100%)
+{Dark_Flat_Theme}TextPane.foreground = $TextField.foreground
+{Dark_Flat_Theme}ToggleButton.foreground = $Button.foreground
 
-[Dracula---Zihan_Ma]Component.accentColor = lazy(Component.focusColor)
-[Dracula---Zihan_Ma]ComboBox.selectionBackground = lazy(List.selectionBackground)
-[Dracula---Zihan_Ma]ProgressBar.selectionBackground = #fff
-[Dracula---Zihan_Ma]ProgressBar.selectionForeground = #fff
+{Dracula---Zihan_Ma}CheckBox.icon.background = @background
+{Dracula---Zihan_Ma}ComboBox.selectionBackground = $List.selectionBackground
+{Dracula---Zihan_Ma}ProgressBar.selectionBackground = #fff
+{Dracula---Zihan_Ma}ProgressBar.selectionForeground = #fff
+{Dracula---Zihan_Ma}Slider.trackColor = $?ColorPalette.selectionBackground
+{Dracula---Zihan_Ma}ToggleButton.foreground = $Button.foreground
 
-[Gradianto_Dark_Fuchsia]*.selectionBackground = #8452a7
-[Gradianto_Dark_Fuchsia]*.selectionInactiveBackground = #562C6A
-[Gradianto_Dark_Fuchsia]MenuItem.checkBackground = @ijMenuCheckBackgroundL10
-[Gradianto_Dark_Fuchsia]MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL10
-[Gradianto_Dark_Fuchsia]TextField.background = @ijTextBackgroundL4
-[Gradianto_Dark_Fuchsia]Tree.background = lazy(List.background)
-[Gradianto_Dark_Fuchsia]Separator.foreground = lazy(ScrollBar.track)
-[Gradianto_Dark_Fuchsia]ToolBar.separatorColor = lazy(ScrollBar.track)
-[Gradianto_Dark_Fuchsia]ProgressBar.background = lazy(ScrollBar.track)
-[Gradianto_Dark_Fuchsia]Slider.trackColor = lazy(ScrollBar.track)
+{Gradianto_Dark_Fuchsia}MenuItem.checkBackground = @ijMenuCheckBackgroundL10
+{Gradianto_Dark_Fuchsia}MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL10
+{Gradianto_Dark_Fuchsia}TextField.background = @ijTextBackgroundL4
+{Gradianto_Dark_Fuchsia}Tree.background = $List.background
+{Gradianto_Dark_Fuchsia}Tree.selectionInactiveBackground = $List.selectionInactiveBackground
+{Gradianto_Dark_Fuchsia}Separator.foreground = @ijSeparatorDark
+{Gradianto_Dark_Fuchsia}ToolBar.separatorColor = $Separator.foreground
+{Gradianto_Dark_Fuchsia}ProgressBar.background = $ScrollBar.track
+{Gradianto_Dark_Fuchsia}Slider.trackColor = $ScrollBar.track
 
-[Gradianto_Deep_Ocean]TextField.background = @ijTextBackgroundL3
-[Gradianto_Deep_Ocean]Tree.background = lazy(List.background)
+{Gradianto_Deep_Ocean}Separator.foreground = @ijSeparatorDark
+{Gradianto_Deep_Ocean}ToolBar.separatorColor = $Separator.foreground
+{Gradianto_Deep_Ocean}TextField.background = @ijTextBackgroundL3
+{Gradianto_Deep_Ocean}Tree.background = $List.background
 
-[Gradianto_Midnight_Blue]ScrollBar.thumb = #533B6B
-[Gradianto_Midnight_Blue]Table.selectionForeground = lazy(List.selectionForeground)
-[Gradianto_Midnight_Blue]TextField.background = @ijTextBackgroundL4
-[Gradianto_Midnight_Blue]Tree.background = lazy(List.background)
+{Gradianto_Midnight_Blue}ScrollBar.thumb = #533B6B
+{Gradianto_Midnight_Blue}Separator.foreground = @ijSeparatorDark
+{Gradianto_Midnight_Blue}ToolBar.separatorColor = $Separator.foreground
+{Gradianto_Midnight_Blue}Table.selectionForeground = $List.selectionForeground
+{Gradianto_Midnight_Blue}TextField.background = @ijTextBackgroundL4
+{Gradianto_Midnight_Blue}Tree.background = $List.background
 
-[Gradianto_Nature_Green]Table.selectionForeground = lazy(List.selectionForeground)
-[Gradianto_Nature_Green]TextField.background = @ijTextBackgroundL4
+{Gradianto_Nature_Green}Separator.foreground = @ijSeparatorDark
+{Gradianto_Nature_Green}ToolBar.separatorColor = $Separator.foreground
+{Gradianto_Nature_Green}Table.selectionForeground = $List.selectionForeground
+{Gradianto_Nature_Green}TextField.background = @ijTextBackgroundL4
 
-[Gray]Separator.foreground = lazy(Slider.trackColor)
-[Gray]ToolBar.separatorColor = lazy(Slider.trackColor)
+{Gray}@disabledForeground = tint(@foreground,40%)
+{Gray}*.disabledText = @disabledForeground
+{Gray}*.disabledForeground = @disabledForeground
+{Gray}*.inactiveForeground = @disabledForeground
+{Gray}Button.background = @buttonBackground
+{Gray}Separator.foreground = @ijSeparatorLight
+{Gray}ToolBar.separatorColor = $Separator.foreground
 
-[Gruvbox_Dark_Hard]Component.accentColor = lazy(TabbedPane.underlineColor)
-[Gruvbox_Dark_Hard]ToggleButton.selectedBackground = $ToggleButton.selectedBackground
-[Gruvbox_Dark_Hard]ToggleButton.toolbar.selectedBackground = $ToggleButton.toolbar.selectedBackground
-[Gruvbox_Dark_Hard]ComboBox.background = @ijTextBackgroundL3
-[Gruvbox_Dark_Hard]ComboBox.buttonBackground = @ijTextBackgroundL3
-[Gruvbox_Dark_Hard]TextField.background = @ijTextBackgroundL3
+{Gruvbox_Dark_Hard}@accentBaseColor = #4B6EAF
+{Gruvbox_Dark_Hard}ComboBox.background = @ijTextBackgroundL3
+{Gruvbox_Dark_Hard}ComboBox.buttonBackground = $ComboBox.background
+{Gruvbox_Dark_Hard}TextField.background = @ijTextBackgroundL3
 
-[Gruvbox_Dark_Medium]Component.accentColor = lazy(TabbedPane.underlineColor)
-[Gruvbox_Dark_Medium]ToggleButton.selectedBackground = $ToggleButton.selectedBackground
-[Gruvbox_Dark_Medium]ToggleButton.toolbar.selectedBackground = $ToggleButton.toolbar.selectedBackground
-[Gruvbox_Dark_Medium]ComboBox.background = @ijTextBackgroundL3
-[Gruvbox_Dark_Medium]ComboBox.buttonBackground = @ijTextBackgroundL3
-[Gruvbox_Dark_Medium]TextField.background = @ijTextBackgroundL3
+{Hiberbee_Dark}@disabledForeground = $ColorPalette.light3
+{Hiberbee_Dark}*.disabledText = @disabledForeground
+{Hiberbee_Dark}*.disabledForeground = @disabledForeground
+{Hiberbee_Dark}*.inactiveForeground = @disabledForeground
+{Hiberbee_Dark}List.selectionInactiveBackground = $Table.selectionInactiveBackground
+{Hiberbee_Dark}ProgressBar.background = $Separator.foreground
+{Hiberbee_Dark}RadioButtonMenuItem.selectionForeground = $MenuItem.selectionForeground
+{Hiberbee_Dark}Slider.trackColor = $ColorPalette.light1
+{Hiberbee_Dark}Slider.trackColor = $ColorPalette.dark10
+{Hiberbee_Dark}Slider.thumbColor = @accentBaseColor
+{Hiberbee_Dark}ToggleButton.foreground = $Button.foreground
+{Hiberbee_Dark}ToolBar.background = @background
 
-[Gruvbox_Dark_Soft]Component.accentColor = lazy(TabbedPane.underlineColor)
-[Gruvbox_Dark_Soft]MenuItem.checkBackground = @ijMenuCheckBackgroundL10
-[Gruvbox_Dark_Soft]MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL10
-[Gruvbox_Dark_Soft]ToggleButton.selectedBackground = $ToggleButton.selectedBackground
-[Gruvbox_Dark_Soft]ToggleButton.toolbar.selectedBackground = $ToggleButton.toolbar.selectedBackground
-[Gruvbox_Dark_Soft]ComboBox.background = @ijTextBackgroundL3
-[Gruvbox_Dark_Soft]ComboBox.buttonBackground = @ijTextBackgroundL3
-[Gruvbox_Dark_Soft]TextField.background = @ijTextBackgroundL3
-
-[Hiberbee_Dark]*.disabledForeground = #7F7E7D
-[Hiberbee_Dark]*.disabledText = #7F7E7D
-[Hiberbee_Dark]*.inactiveForeground = #7F7E7D
-[Hiberbee_Dark]ProgressBar.background = lazy(Separator.foreground)
-[Hiberbee_Dark]Slider.trackColor = lazy(Separator.foreground)
-[Hiberbee_Dark]TabbedPane.focusColor = #5A5A5A
-[Hiberbee_Dark]TabbedPane.selectedBackground = #434241
-[Hiberbee_Dark]TabbedPane.selectedForeground = #70D7FF
-[Hiberbee_Dark]ToggleButton.selectedBackground = $ToggleButton.selectedBackground
-[Hiberbee_Dark]ToggleButton.toolbar.selectedBackground = $ToggleButton.toolbar.selectedBackground
-[Hiberbee_Dark]Table.selectionInactiveBackground = lazy(List.selectionInactiveBackground)
-[Hiberbee_Dark]Tree.selectionBackground = lazy(List.selectionBackground)
-[Hiberbee_Dark]Tree.selectionInactiveBackground = lazy(List.selectionInactiveBackground)
-
-[High_contrast]Component.accentColor = lazy(Component.focusColor)
-[High_contrast]ToggleButton.selectedBackground = #fff
-[High_contrast]ToggleButton.selectedForeground = #000
-[High_contrast]ToggleButton.disabledSelectedBackground = #444
-[High_contrast]ToggleButton.toolbar.selectedBackground = #fff
-[High_contrast][style]Button.inTextField = \
+{High_Contrast}@accentBaseColor = $TabbedPane.underlineColor
+{High_Contrast}Slider.thumbBorderColor = $Slider.thumbColor
+{High_Contrast}Slider.focusedThumbBorderColor = @background
+{High_Contrast}Slider.focusedColor = $Component.focusColor
+{High_Contrast}Slider.focusWidth = 2
+{High_Contrast}ToggleButton.selectedBackground = @selectionBackground
+{High_Contrast}ToggleButton.selectedForeground = @selectionForeground
+{High_Contrast}ToggleButton.disabledSelectedBackground = shade(@selectionBackground,50%)
+{High_Contrast}ToggleButton.toolbar.selectedBackground = @selectionBackground
+{High_Contrast}[style]Button.inTextField = \
 	toolbar.hoverBackground: #444; \
 	toolbar.pressedBackground: #666; \
-	toolbar.selectedBackground: #fff
-[High_contrast][style]ToggleButton.inTextField = $[High_contrast][style]Button.inTextField
+	toolbar.selectedBackground: @selectionBackground
 
-[Light_Flat]*.disabledForeground = #8C8C8C
-[Light_Flat]*.inactiveForeground = #8C8C8C
-[Light_Flat]CheckBox.icon[filled].background = #fff
-[Light_Flat]CheckBox.icon[filled].checkmarkColor = #fff
-[Light_Flat]Component.accentColor = lazy(TabbedPane.underlineColor)
-[Light_Flat]ComboBox.background = lazy(ComboBox.editableBackground)
-[Light_Flat]ComboBox.buttonBackground = lazy(ComboBox.editableBackground)
-[Light_Flat]Separator.foreground = lazy(ToolBar.separatorColor)
-[Light_Flat]TableHeader.background = #E5E5E9
-[Light_Flat]TextPane.foreground = lazy(TextField.foreground)
-[Light_Flat]CheckBoxMenuItem.selectionForeground = lazy(MenuItem.selectionForeground)
-[Light_Flat]RadioButtonMenuItem.selectionForeground = lazy(MenuItem.selectionForeground)
+{Light_Flat}@accentBaseColor = $TabbedPane.underlineColor
+{Light_Flat}@accentFocusColor = lighten(@accentBaseColor,15%)
+{Light_Flat}@disabledForeground = #808080
+{Light_Flat}*.disabledText = @disabledForeground
+{Light_Flat}*.disabledForeground = @disabledForeground
+{Light_Flat}*.inactiveForeground = @disabledForeground
+{Light_Flat}CheckBox.icon[filled].background = #fff
+{Light_Flat}CheckBox.icon[filled].checkmarkColor = #fff
+{Light_Flat}ComboBox.background = $ComboBox.editableBackground
+{Light_Flat}ComboBox.buttonBackground = $ComboBox.background
+{Light_Flat}ProgressBar.selectionForeground = @foreground
+{Light_Flat}Separator.foreground = @ijSeparatorLight
+{Light_Flat}TableHeader.background = #E5E5E9
+{Light_Flat}TextPane.foreground = $TextField.foreground
+{Light_Flat}ToggleButton.foreground = $Button.foreground
+{Light_Flat}CheckBoxMenuItem.selectionForeground = $MenuItem.selectionForeground
+{Light_Flat}RadioButtonMenuItem.selectionForeground = $MenuItem.selectionForeground
 
-[Monocai]Button.default.foreground = #2D2A2F
-[Monocai]MenuItem.checkBackground = @ijMenuCheckBackgroundL10
-[Monocai]MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL10
-@Monocai.acceleratorForeground = lazy(MenuItem.disabledForeground)
-@Monocai.acceleratorSelectionForeground = lighten(MenuItem.disabledForeground,10%,lazy)
-[Monocai]CheckBoxMenuItem.acceleratorForeground = @Monocai.acceleratorForeground
-[Monocai]CheckBoxMenuItem.acceleratorSelectionForeground = @Monocai.acceleratorSelectionForeground
-[Monocai]Menu.acceleratorForeground = @Monocai.acceleratorForeground
-[Monocai]Menu.acceleratorSelectionForeground = @Monocai.acceleratorSelectionForeground
-[Monocai]MenuItem.acceleratorForeground = @Monocai.acceleratorForeground
-[Monocai]MenuItem.acceleratorSelectionForeground = @Monocai.acceleratorSelectionForeground
-[Monocai]RadioButtonMenuItem.acceleratorForeground = @Monocai.acceleratorForeground
-[Monocai]RadioButtonMenuItem.acceleratorSelectionForeground = @Monocai.acceleratorSelectionForeground
-[Monocai]TextField.background = @ijTextBackgroundL4
-@Monocai.selectionBackground = lazy(TextField.selectionBackground)
-[Monocai]ComboBox.selectionBackground = @Monocai.selectionBackground
-[Monocai]List.selectionBackground = @Monocai.selectionBackground
-[Monocai]Table.selectionBackground = @Monocai.selectionBackground
-[Monocai]Tree.selectionBackground = @Monocai.selectionBackground
-@Monocai.selectionInactiveBackground = lazy(MenuItem.selectionBackground)
-[Monocai]List.selectionInactiveBackground = @Monocai.selectionInactiveBackground
-[Monocai]Table.selectionInactiveBackground = @Monocai.selectionInactiveBackground
-[Monocai]Tree.selectionInactiveBackground = @Monocai.selectionInactiveBackground
+{Monocai}@accentUnderlineColor = @accentBaseColor
+{Monocai}*.acceleratorForeground = @menuAcceleratorForeground
+{Monocai}*.acceleratorSelectionForeground = @menuAcceleratorSelectionForeground
+{Monocai}Button.default.foreground = @background
+{Monocai}MenuItem.checkBackground = @ijMenuCheckBackgroundL10
+{Monocai}TabbedPane.underlineColor = @accentUnderlineColor
+{Monocai}TextField.background = @ijTextBackgroundL4
+@Monocai.selectionBackground = $TextField.selectionBackground
+{Monocai}ComboBox.selectionBackground = @Monocai.selectionBackground
+{Monocai}List.selectionBackground = @Monocai.selectionBackground
+{Monocai}Table.selectionBackground = @Monocai.selectionBackground
+{Monocai}Tree.selectionBackground = @Monocai.selectionBackground
+@Monocai.selectionInactiveBackground = $MenuItem.selectionBackground
+{Monocai}List.selectionInactiveBackground = @Monocai.selectionInactiveBackground
+{Monocai}Table.selectionInactiveBackground = @Monocai.selectionInactiveBackground
+{Monocai}Tree.selectionInactiveBackground = @Monocai.selectionInactiveBackground
 
-[Monokai_Pro---Subtheme]Table.selectionInactiveForeground = lazy(List.selectionInactiveForeground)
-[Monokai_Pro---Subtheme]Tree.selectionBackground = lazy(List.selectionBackground)
-[Monokai_Pro---Subtheme]Separator.foreground = lazy(Slider.trackColor)
-[Monokai_Pro---Subtheme]ToolBar.separatorColor = lazy(Slider.trackColor)
+{Monokai_Pro---Subtheme}@disabledForeground = shade(@foreground,40%)
+{Monokai_Pro---Subtheme}*.disabledText = @disabledForeground
+{Monokai_Pro---Subtheme}*.disabledForeground = @disabledForeground
+{Monokai_Pro---Subtheme}*.inactiveForeground = @disabledForeground
+{Monokai_Pro---Subtheme}ProgressBar.selectionBackground = #fff
+{Monokai_Pro---Subtheme}Table.selectionInactiveForeground = $List.selectionInactiveForeground
+{Monokai_Pro---Subtheme}Tree.selectionBackground = $List.selectionBackground
+{Monokai_Pro---Subtheme}ToggleButton.foreground = $Button.foreground
+{Monokai_Pro---Subtheme}Separator.foreground = @ijSeparatorDark
+{Monokai_Pro---Subtheme}ToolBar.separatorColor = $Separator.foreground
+{Monokai_Pro---Subtheme}ToolBar.background = @background
 
-[Nord]*.inactiveForeground = #616E88
-[Nord]MenuItem.checkBackground = @ijMenuCheckBackgroundL10
-[Nord]MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL10
-[Nord]List.selectionBackground = lazy(Tree.selectionBackground)
-[Nord]List.selectionForeground = lazy(Tree.selectionForeground)
-[Nord]Table.selectionBackground = lazy(Tree.selectionBackground)
-[Nord]Table.selectionForeground = lazy(Tree.selectionForeground)
-[Nord]TextField.selectionBackground = lazy(Tree.selectionBackground)
-[Nord]TextField.selectionForeground = lazy(Tree.selectionForeground)
-[Nord]Tree.selectionInactiveForeground = lazy(List.selectionInactiveForeground)
+{Nord}@disabledForeground = #616E88
+{Nord}*.disabledText = @disabledForeground
+{Nord}*.disabledForeground = @disabledForeground
+{Nord}*.inactiveForeground = @disabledForeground
+{Nord}MenuItem.checkBackground = @ijMenuCheckBackgroundL10
+{Nord}MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL10
+{Nord}RadioButtonMenuItem.selectionBackground = $MenuItem.selectionBackground
+{Nord}ProgressBar.selectionBackground = @foreground
+{Nord}ProgressBar.selectionForeground = @background
+{Nord}List.selectionBackground = $Tree.selectionBackground
+{Nord}List.selectionForeground = $Tree.selectionForeground
+{Nord}Table.selectionBackground = $Tree.selectionBackground
+{Nord}Table.selectionForeground = $Tree.selectionForeground
+{Nord}TextField.selectionBackground = $Tree.selectionBackground
+{Nord}TextField.selectionForeground = $Tree.selectionForeground
+{Nord}Tree.selectionInactiveForeground = $List.selectionInactiveForeground
 
-[NotReallyMDTheme]*.selectionInactiveBackground = #21384E
-[NotReallyMDTheme]ToolBar.separatorColor = lazy(Separator.foreground)
+{NotReallyMDTheme}*.selectionInactiveBackground = #21384E
+{NotReallyMDTheme}ToolBar.separatorColor = $Separator.foreground
 
-[One_Dark]List.selectionInactiveForeground = lazy(Tree.selectionInactiveForeground)
-[One_Dark]MenuItem.checkBackground = @ijMenuCheckBackgroundL10
-[One_Dark]MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL10
-[One_Dark]ProgressBar.background = lazy(Separator.foreground)
-[One_Dark]Slider.trackColor = lazy(Separator.foreground)
-[One_Dark]Slider.focusedColor = fade(#568af2,40%)
-[One_Dark]Table.background = lazy(Tree.background)
-[One_Dark]Table.selectionBackground = lazy(Tree.selectionBackground)
-[One_Dark]TextField.selectionBackground = lazy(List.selectionBackground)
-[One_Dark]Tree.selectionForeground = lazy(List.selectionForeground)
+{One_Dark}MenuItem.checkBackground = @ijMenuCheckBackgroundL10
+{One_Dark}MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL10
+{One_Dark}ProgressBar.background = $Separator.foreground
+{One_Dark}ProgressBar.selectionForeground = #fff
+{One_Dark}Table.background = $Tree.background
+{One_Dark}Table.selectionBackground = $Tree.selectionBackground
+{One_Dark}TextField.selectionBackground = $List.selectionBackground
+{One_Dark}Tree.selectionForeground = $List.selectionForeground
 
-[Solarized_Dark---4lex4]*.inactiveForeground = #657B83
-[Solarized_Dark---4lex4]Component.accentColor = lazy(TabbedPane.underlineColor)
-[Solarized_Dark---4lex4]ComboBox.background = lazy(ComboBox.editableBackground)
-[Solarized_Dark---4lex4]ComboBox.buttonBackground = lazy(ComboBox.editableBackground)
-[Solarized_Dark---4lex4]Slider.focusedColor = fade($Component.focusColor,80%,derived)
-[Solarized_Dark---4lex4]ToolBar.separatorColor = lazy(Separator.foreground)
+{Solarized_Dark---4lex4}@accentBaseColor = $TabbedPane.underlineColor
+{Solarized_Dark---4lex4}*.acceleratorForeground = @menuAcceleratorForeground
+{Solarized_Dark---4lex4}ComboBox.background = $ComboBox.editableBackground
+{Solarized_Dark---4lex4}ComboBox.buttonBackground = $ComboBox.editableBackground
+{Solarized_Dark---4lex4}Slider.disabledTrackColor = $ColorPalette.colorSeparator
 
-[Solarized_Light---4lex4]*.inactiveForeground = #839496
-[Solarized_Light---4lex4]Button.default.hoverBackground = darken($Button.default.background,3%,derived)
-[Solarized_Light---4lex4]Component.accentColor = lazy(TabbedPane.underlineColor)
+{Solarized_Light---4lex4}@accentBaseColor = $TabbedPane.underlineColor
+{Solarized_Light---4lex4}Slider.thumbColor = $ProgressBar.foreground
+{Solarized_Light---4lex4}Slider.disabledTrackColor = $ColorPalette.colorSeparator
 
-[Spacegray]ComboBox.background = @ijTextBackgroundL4
-[Spacegray]ComboBox.buttonBackground = @ijTextBackgroundL4
-[Spacegray]TextField.background = @ijTextBackgroundL4
-[Spacegray]TextField.selectionBackground = lazy(Tree.selectionBackground)
-[Spacegray]TextField.selectionForeground = lazy(Tree.selectionForeground)
+{Spacegray}ComboBox.background = @ijTextBackgroundL4
+{Spacegray}ComboBox.buttonBackground = $ComboBox.background
+{Spacegray}TextField.background = @ijTextBackgroundL4
 
-[vuesion-theme]*.disabledForeground = #8C8C8C
-[vuesion-theme]*.disabledText = #8C8C8C
-[vuesion-theme]*.inactiveForeground = #8C8C8C
-[vuesion-theme]Component.accentColor = lazy(Button.default.endBackground)
-[vuesion-theme]MenuItem.checkBackground = @ijMenuCheckBackgroundL10
-[vuesion-theme]MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL10
-[vuesion-theme]Slider.trackValueColor = #ececee
-[vuesion-theme]Slider.trackColor = #303a45
-[vuesion-theme]Slider.thumbColor = #ececee
-[vuesion-theme]Slider.focusedColor = fade(#ececee,20%)
-[vuesion-theme]ComboBox.background = @ijTextBackgroundL4
-[vuesion-theme]ComboBox.buttonBackground = @ijTextBackgroundL4
-[vuesion-theme]TextField.background = @ijTextBackgroundL4
-[vuesion-theme]TextField.selectionBackground = lighten(#303A45,15%)
+{vuesion-theme}@accentBaseColor = $TabbedPane.underlineColor
+{vuesion-theme}@disabledForeground = #8C8C8C
+{vuesion-theme}*.disabledText = @disabledForeground
+{vuesion-theme}*.disabledForeground = @disabledForeground
+{vuesion-theme}*.inactiveForeground = @disabledForeground
+{vuesion-theme}MenuItem.checkBackground = @ijMenuCheckBackgroundL10
+{vuesion-theme}MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL10
+{vuesion-theme}ProgressBar.background = #303a45
+{vuesion-theme}ProgressBar.foreground = #ececee
+{vuesion-theme}Slider.thumbColor = #ececee
+{vuesion-theme}Slider.focusedColor = fade($Slider.thumbColor,20%)
+{vuesion-theme}ComboBox.background = @ijTextBackgroundL4
+{vuesion-theme}ComboBox.buttonBackground = $ComboBox.background
+{vuesion-theme}TextField.background = @ijTextBackgroundL4
+{vuesion-theme}TextField.selectionBackground = lighten(#303A45,15%)
 
-[Xcode-Dark]TextField.background = @ijTextBackgroundL4
+{Xcode-Dark}@accentBaseColor = $List.selectionBackground
+{Xcode-Dark}TextField.background = @ijTextBackgroundL4
 
 
 # Material Theme UI Lite
 
-[light][author-Mallowigi]MenuItem.checkBackground = @ijMenuCheckBackgroundD10
-[light][author-Mallowigi]MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundD10
-[dark][author-Mallowigi]MenuItem.checkBackground = @ijMenuCheckBackgroundL20
-[dark][author-Mallowigi]MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL20
+{author-Mallowigi}[light]controlHighlight = lighten($controlShadow,8%)
+{author-Mallowigi}[light]controlLtHighlight = lighten($controlShadow,15%)
+{author-Mallowigi}[light]controlDkShadow = darken($controlShadow,15%)
+{author-Mallowigi}[dark]controlHighlight = darken($controlShadow,10%)
+{author-Mallowigi}[dark]controlLtHighlight = darken($controlShadow,15%)
+{author-Mallowigi}[dark]controlDkShadow = lighten($controlShadow,10%)
 
-[author-Mallowigi]Tree.selectionInactiveBackground = lazy(List.selectionInactiveBackground)
+{author-Mallowigi}Button.hoverBorderColor = $Button.focusedBorderColor
+{author-Mallowigi}HelpButton.hoverBorderColor = $Button.focusedBorderColor
 
-[Arc_Dark]ComboBox.selectionBackground = lazy(List.selectionBackground)
-[Arc_Dark]Table.selectionBackground = lazy(List.selectionBackground)
+{author-Mallowigi}[light]ToggleButton.selectedForeground = #000
+{author-Mallowigi}[dark]ToggleButton.selectedForeground = #fff
 
-[Atom_One_Dark]Separator.foreground = lazy(Slider.trackColor)
-[Atom_One_Dark]ToolBar.separatorColor = lazy(Slider.trackColor)
+{author-Mallowigi}[light]MenuItem.checkBackground = @ijMenuCheckBackgroundD10
+{author-Mallowigi}[light]MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundD10
+{author-Mallowigi}[dark]MenuItem.checkBackground = @ijMenuCheckBackgroundL20
+{author-Mallowigi}[dark]MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL20
 
-[Atom_One_Light]List.selectionBackground = lazy(Table.selectionBackground)
-[Atom_One_Light]Tree.selectionBackground = lazy(Table.selectionBackground)
-[Atom_One_Light]TabbedPane.contentAreaColor = lazy(Separator.foreground)
+{author-Mallowigi}[light]Separator.foreground = @ijSeparatorLight
+{author-Mallowigi}[dark]Separator.foreground = @ijSeparatorDark
+{author-Mallowigi}ProgressBar.selectionBackground = @foreground
+{author-Mallowigi}TabbedPane.selectedBackground = mix(@background,$ColorPalette.table,60%)
+{author-Mallowigi}ToolBar.separatorColor = $Separator.foreground
+{author-Mallowigi}Button.foreground = @foreground
+{author-Mallowigi}Tree.foreground = @foreground
 
-[Dracula---Mallowigi]*.selectionBackground = #44475A
-[Dracula---Mallowigi]List.selectionInactiveForeground = lazy(Tree.selectionInactiveForeground)
-[Dracula---Mallowigi]ProgressBar.selectionBackground = #fff
-[Dracula---Mallowigi]ProgressBar.selectionForeground = #fff
-[Dracula---Mallowigi]RadioButtonMenuItem.selectionForeground = lazy(CheckBoxMenuItem.selectionForeground)
-[Dracula---Mallowigi]Table.selectionForeground = lazy(List.selectionForeground)
-[Dracula---Mallowigi]Separator.foreground = lazy(Slider.trackColor)
-[Dracula---Mallowigi]ToolBar.separatorColor = lazy(Slider.trackColor)
 
-[GitHub]ProgressBar.selectionBackground = #222
-[GitHub]ProgressBar.selectionForeground = #222
-[GitHub]TextField.background = @ijTextBackgroundL3
-[GitHub]List.selectionBackground = lazy(Table.selectionBackground)
-[GitHub]Tree.selectionBackground = lazy(Table.selectionBackground)
+{Arc_Dark}ComboBox.selectionBackground = $List.selectionBackground
+{Arc_Dark}ProgressBar.selectionBackground = #fff
+{Arc_Dark}ProgressBar.selectionForeground = #fff
+{Arc_Dark}Table.selectionBackground = $List.selectionBackground
+{Arc_Dark}Tree.selectionInactiveBackground = $List.selectionInactiveBackground
 
-[GitHub_Dark]ComboBox.selectionBackground = lazy(Tree.selectionBackground)
-[GitHub_Dark]Table.selectionBackground = lazy(Tree.selectionBackground)
-[GitHub_Dark]Separator.foreground = lazy(Slider.trackColor)
-[GitHub_Dark]ToolBar.separatorColor = lazy(Slider.trackColor)
+{Atom_One_Dark}ProgressBar.selectionBackground = #fff
+{Atom_One_Dark}ProgressBar.selectionForeground = #fff
+{Atom_One_Dark}List.selectionBackground = $Table.selectionBackground
+{Atom_One_Dark}Tree.selectionBackground = $Table.selectionBackground
+{Atom_One_Dark}List.selectionInactiveBackground = $Tree.selectionInactiveBackground
+{Atom_One_Dark}Table.selectionInactiveBackground = $Tree.selectionInactiveBackground
 
-[Light_Owl]CheckBoxMenuItem.selectionForeground = lazy(CheckBoxMenuItem.foreground)
-[Light_Owl]ComboBox.selectionForeground = lazy(ComboBox.foreground)
-[Light_Owl]List.selectionInactiveForeground = lazy(List.foreground)
-[Light_Owl]Menu.selectionForeground = lazy(Menu.foreground)
-[Light_Owl]MenuBar.selectionForeground = lazy(MenuBar.foreground)
-[Light_Owl]MenuItem.selectionForeground = lazy(MenuItem.foreground)
-[Light_Owl]ProgressBar.selectionBackground = #111
-[Light_Owl]ProgressBar.selectionForeground = #fff
-[Light_Owl]Spinner.selectionForeground = lazy(Spinner.foreground)
-[Light_Owl]Table.selectionForeground = lazy(Table.foreground)
-[Light_Owl]TextField.selectionForeground = lazy(TextField.foreground)
-[Light_Owl]TextField.background = @ijTextBackgroundL3
-[Light_Owl]List.selectionBackground = lazy(Table.selectionBackground)
-[Light_Owl]Tree.selectionBackground = lazy(Table.selectionBackground)
+{Atom_One_Light}@disabledForeground = shade($ColorPalette.dis,20%)
+{Atom_One_Light}*.disabledText = @disabledForeground
+{Atom_One_Light}*.disabledForeground = @disabledForeground
+{Atom_One_Light}*.inactiveForeground = @disabledForeground
+{Atom_One_Light}TabbedPane.contentAreaColor = $Separator.foreground
 
-[Material_Darker]*.selectionBackground = lighten(#2D2D2D,15%)
-[Material_Darker]Separator.foreground = lazy(Slider.trackColor)
-[Material_Darker]ToolBar.separatorColor = lazy(Slider.trackColor)
+{Dracula---Mallowigi}ProgressBar.selectionBackground = #fff
+{Dracula---Mallowigi}ProgressBar.selectionForeground = #fff
+{Dracula---Mallowigi}List.selectionBackground = $Table.selectionBackground
+{Dracula---Mallowigi}Tree.selectionBackground = $Table.selectionBackground
+{Dracula---Mallowigi}List.selectionInactiveBackground = $Tree.selectionInactiveBackground
+{Dracula---Mallowigi}Table.selectionInactiveBackground = $Tree.selectionInactiveBackground
 
-[Material_Deep_Ocean]*.selectionBackground = lighten(#222533,15%)
-[Material_Deep_Ocean]Separator.foreground = lazy(Slider.trackColor)
-[Material_Deep_Ocean]ToolBar.separatorColor = lazy(Slider.trackColor)
+{GitHub}ProgressBar.selectionBackground = #222
+{GitHub}ProgressBar.selectionForeground = #222
+{GitHub}TextField.background = @ijTextBackgroundL3
+{GitHub}List.selectionBackground = $Table.selectionBackground
+{GitHub}Tree.selectionBackground = $Table.selectionBackground
+{GitHub}List.selectionInactiveBackground = $Tree.selectionInactiveBackground
+{GitHub}Table.selectionInactiveBackground = $Tree.selectionInactiveBackground
 
-[Material_Lighter]List.selectionInactiveForeground = lazy(Tree.selectionInactiveForeground)
-[Material_Lighter]ProgressBar.selectionBackground = #222
-[Material_Lighter]ProgressBar.selectionForeground = #fff
-[Material_Lighter]ComboBox.selectionBackground = lazy(List.selectionBackground)
-[Material_Lighter]Table.selectionBackground = lazy(List.selectionBackground)
-[Material_Lighter]List.selectionForeground = lazy(Table.selectionForeground)
-[Material_Lighter]RadioButtonMenuItem.selectionForeground = lazy(Table.selectionForeground)
-[Material_Lighter]Tree.selectionForeground = lazy(Table.selectionForeground)
+{GitHub_Dark}ComboBox.selectionBackground = $Tree.selectionBackground
+{GitHub_Dark}ProgressBar.selectionForeground = #fff
+{GitHub_Dark}Slider.trackColor = lighten(#2b3036,5%)
+{GitHub_Dark}Table.selectionBackground = $Tree.selectionBackground
+{GitHub_Dark}Tree.selectionInactiveBackground = $Table.selectionInactiveBackground
 
-[Material_Oceanic]ProgressBar.selectionBackground = #ddd
-[Material_Oceanic]ProgressBar.selectionForeground = #ddd
-[Material_Oceanic]Separator.foreground = lazy(Slider.trackColor)
-[Material_Oceanic]ToolBar.separatorColor = lazy(Slider.trackColor)
+{Light_Owl}@disabledForeground = shade($ColorPalette.dis,10%)
+{Light_Owl}*.disabledText = @disabledForeground
+{Light_Owl}*.disabledForeground = @disabledForeground
+{Light_Owl}*.inactiveForeground = @disabledForeground
+{Light_Owl}CheckBoxMenuItem.selectionForeground = $CheckBoxMenuItem.foreground
+{Light_Owl}ComboBox.selectionForeground = $ComboBox.foreground
+{Light_Owl}List.selectionInactiveForeground = $Table.selectionInactiveForeground
+{Light_Owl}Menu.selectionForeground = $Menu.foreground
+{Light_Owl}MenuBar.selectionForeground = $MenuBar.foreground
+{Light_Owl}MenuItem.selectionForeground = $MenuItem.foreground
+{Light_Owl}Table.selectionForeground = $List.selectionForeground
+{Light_Owl}TextField.selectionForeground = $TextField.foreground
+{Light_Owl}TextField.background = @ijTextBackgroundL3
+{Light_Owl}List.selectionBackground = $Table.selectionBackground
+{Light_Owl}Tree.selectionBackground = $Table.selectionBackground
+{Light_Owl}List.selectionInactiveBackground = $Tree.selectionInactiveBackground
+{Light_Owl}Table.selectionInactiveBackground = $Tree.selectionInactiveBackground
 
-[Material_Palenight]ProgressBar.selectionBackground = #ddd
-[Material_Palenight]ProgressBar.selectionForeground = #ddd
-[Material_Palenight]List.selectionBackground = lazy(Table.selectionBackground)
-[Material_Palenight]Tree.selectionBackground = lazy(Table.selectionBackground)
-[Material_Palenight]Separator.foreground = lazy(Slider.trackColor)
-[Material_Palenight]ToolBar.separatorColor = lazy(Slider.trackColor)
+{Material_Darker}@disabledForeground = tint($ColorPalette.dis,30%)
+{Material_Darker}*.disabledText = @disabledForeground
+{Material_Darker}*.disabledForeground = @disabledForeground
+{Material_Darker}*.inactiveForeground = @disabledForeground
+{Material_Darker}*.selectionBackground = lighten($ColorPalette.tree,15%)
+{Material_Darker}ProgressBar.selectionForeground = #fff
+{Material_Darker}Tree.selectionInactiveBackground = $List.selectionInactiveBackground
 
-[Monokai_Pro---Mallowigi]List.selectionForeground = lazy(Table.selectionForeground)
-[Monokai_Pro---Mallowigi]RadioButtonMenuItem.selectionForeground = lazy(Table.selectionForeground)
-[Monokai_Pro---Mallowigi]Table.selectionInactiveForeground = lazy(List.selectionInactiveForeground)
-[Monokai_Pro---Mallowigi]Tree.selectionForeground = lazy(Table.selectionForeground)
-[Monokai_Pro---Mallowigi]Tree.selectionInactiveForeground = lazy(List.selectionInactiveForeground)
-[Monokai_Pro---Mallowigi]Separator.foreground = lazy(Slider.trackColor)
-[Monokai_Pro---Mallowigi]ToolBar.separatorColor = lazy(Slider.trackColor)
+{Material_Deep_Ocean}@disabledForeground = tint($ColorPalette.dis,10%)
+{Material_Deep_Ocean}*.disabledText = @disabledForeground
+{Material_Deep_Ocean}*.disabledForeground = @disabledForeground
+{Material_Deep_Ocean}*.inactiveForeground = @disabledForeground
+{Material_Deep_Ocean}*.selectionBackground = lighten($ColorPalette.tree,15%)
+{Material_Deep_Ocean}ProgressBar.selectionBackground = #fff
+{Material_Deep_Ocean}Slider.trackColor = lighten(#1A1C25,5%)
+{Material_Deep_Ocean}Tree.selectionInactiveBackground = $List.selectionInactiveBackground
 
-[Moonlight]ComboBox.selectionBackground = lazy(List.selectionBackground)
-[Moonlight]Table.selectionBackground = lazy(List.selectionBackground)
-[Moonlight]Separator.foreground = lazy(Slider.trackColor)
-[Moonlight]ToolBar.separatorColor = lazy(Slider.trackColor)
+{Material_Lighter}@disabledForeground = shade($ColorPalette.dis,30%)
+{Material_Lighter}*.disabledText = @disabledForeground
+{Material_Lighter}*.disabledForeground = @disabledForeground
+{Material_Lighter}*.inactiveForeground = @disabledForeground
+{Material_Lighter}ComboBox.selectionBackground = $List.selectionBackground
+{Material_Lighter}List.selectionForeground = $Table.selectionForeground
+{Material_Lighter}List.selectionInactiveForeground = $Table.selectionInactiveForeground
+{Material_Lighter}ProgressBar.selectionBackground = #222
+{Material_Lighter}RadioButtonMenuItem.selectionForeground = $Table.selectionForeground
+{Material_Lighter}Table.selectionBackground = $List.selectionBackground
+{Material_Lighter}Tree.selectionForeground = $Table.selectionForeground
+{Material_Lighter}Tree.selectionInactiveBackground = $List.selectionInactiveBackground
 
-[Night_Owl]ProgressBar.selectionBackground = #ddd
-[Night_Owl]ProgressBar.selectionForeground = #ddd
+{Material_Oceanic}@disabledForeground = tint($ColorPalette.dis,30%)
+{Material_Oceanic}*.disabledText = @disabledForeground
+{Material_Oceanic}*.disabledForeground = @disabledForeground
+{Material_Oceanic}*.inactiveForeground = @disabledForeground
+{Material_Oceanic}ProgressBar.selectionBackground = #ddd
+{Material_Oceanic}ProgressBar.selectionForeground = #ddd
+{Material_Oceanic}List.selectionBackground = $Table.selectionBackground
+{Material_Oceanic}Tree.selectionBackground = $Table.selectionBackground
+{Material_Oceanic}List.selectionInactiveBackground = $Tree.selectionInactiveBackground
+{Material_Oceanic}Table.selectionInactiveBackground = $Tree.selectionInactiveBackground
 
-[Solarized_Dark---Mallowigi]ProgressBar.selectionBackground = #ccc
-[Solarized_Dark---Mallowigi]ProgressBar.selectionForeground = #ccc
-[Solarized_Dark---Mallowigi]Separator.foreground = lazy(Slider.trackColor)
-[Solarized_Dark---Mallowigi]ToolBar.separatorColor = lazy(Slider.trackColor)
+{Material_Palenight}@disabledForeground = tint($ColorPalette.dis,20%)
+{Material_Palenight}*.disabledText = @disabledForeground
+{Material_Palenight}*.disabledForeground = @disabledForeground
+{Material_Palenight}*.inactiveForeground = @disabledForeground
+{Material_Palenight}ProgressBar.selectionBackground = #ddd
+{Material_Palenight}ProgressBar.selectionForeground = #ddd
+{Material_Palenight}List.selectionBackground = $Table.selectionBackground
+{Material_Palenight}Tree.selectionBackground = $Table.selectionBackground
+{Material_Palenight}List.selectionInactiveBackground = $Tree.selectionInactiveBackground
+{Material_Palenight}Table.selectionInactiveBackground = $Tree.selectionInactiveBackground
 
-[Solarized_Light---Mallowigi]ProgressBar.selectionBackground = #222
-[Solarized_Light---Mallowigi]ProgressBar.selectionForeground = #fff
-[Solarized_Light---Mallowigi]ComboBox.selectionBackground = lazy(List.selectionBackground)
-[Solarized_Light---Mallowigi]Table.selectionBackground = lazy(List.selectionBackground)
-[Solarized_Light---Mallowigi]Separator.foreground = lazy(Slider.trackColor)
-[Solarized_Light---Mallowigi]ToolBar.separatorColor = lazy(Slider.trackColor)
+{Monokai_Pro---Mallowigi}@disabledForeground = tint($ColorPalette.dis,20%)
+{Monokai_Pro---Mallowigi}*.disabledText = @disabledForeground
+{Monokai_Pro---Mallowigi}*.disabledForeground = @disabledForeground
+{Monokai_Pro---Mallowigi}*.inactiveForeground = @disabledForeground
+{Monokai_Pro---Mallowigi}RadioButtonMenuItem.selectionForeground = $MenuItem.selectionForeground
+{Monokai_Pro---Mallowigi}List.selectionForeground = $Table.selectionForeground
+{Monokai_Pro---Mallowigi}Tree.selectionForeground = $Table.selectionForeground
+{Monokai_Pro---Mallowigi}List.selectionInactiveForeground = $Table.selectionInactiveForeground
+{Monokai_Pro---Mallowigi}List.selectionBackground = $Table.selectionBackground
+{Monokai_Pro---Mallowigi}Tree.selectionBackground = $Table.selectionBackground
+{Monokai_Pro---Mallowigi}List.selectionInactiveBackground = $Tree.selectionInactiveBackground
+{Monokai_Pro---Mallowigi}Table.selectionInactiveBackground = $Tree.selectionInactiveBackground
+
+{Moonlight}ComboBox.selectionBackground = $List.selectionBackground
+{Moonlight}ProgressBar.selectionForeground = #000
+{Moonlight}Table.selectionBackground = $List.selectionBackground
+{Moonlight}Tree.selectionInactiveBackground = $List.selectionInactiveBackground
+
+{Solarized_Dark---Mallowigi}@disabledForeground = tint($ColorPalette.dis,20%)
+{Solarized_Dark---Mallowigi}*.disabledForeground = @disabledForeground
+{Solarized_Dark---Mallowigi}*.inactiveForeground = @disabledForeground
+{Solarized_Dark---Mallowigi}*.disabledText = @disabledForeground
+{Solarized_Dark---Mallowigi}ProgressBar.selectionBackground = #ccc
+{Solarized_Dark---Mallowigi}ProgressBar.selectionForeground = #ccc
+{Solarized_Dark---Mallowigi}Slider.trackColor = lighten(@background,10%)
+{Solarized_Dark---Mallowigi}Table.selectionBackground = $List.selectionBackground
+{Solarized_Dark---Mallowigi}Tree.selectionInactiveBackground = $List.selectionInactiveBackground
+
+{Solarized_Light---Mallowigi}@disabledForeground = tint(@foreground,30%)
+{Solarized_Light---Mallowigi}*.disabledForeground = @disabledForeground
+{Solarized_Light---Mallowigi}*.inactiveForeground = @disabledForeground
+{Solarized_Light---Mallowigi}*.disabledText = @disabledForeground
+{Solarized_Light---Mallowigi}ProgressBar.selectionBackground = #222
+{Solarized_Light---Mallowigi}ComboBox.selectionBackground = $List.selectionBackground
+{Solarized_Light---Mallowigi}Slider.disabledTrackColor = lighten($Slider.trackColor,5%)
+{Solarized_Light---Mallowigi}Table.selectionBackground = $List.selectionBackground
+{Solarized_Light---Mallowigi}Tree.selectionInactiveBackground = $List.selectionInactiveBackground
+{Solarized_Light---Mallowigi}Button.toolbar.selectedBackground = darken($@background,15%)
+{Solarized_Light---Mallowigi}ToggleButton.toolbar.selectedBackground = $Button.toolbar.selectedBackground

flatlaf-core/src/main/resources/com/formdev/flatlaf/themes/FlatMacDarkLaf.properties

@@ -112,6 +112,7 @@ Button.borderWidth = 0
 Button.disabledBackground = darken($Button.background,10%)
 
 Button.default.borderWidth = 0
+Button.default.foreground = contrast($Button.default.background, @background, @selectionForeground, 25%)
 
 Button.toolbar.hoverBackground = #fff1
 Button.toolbar.pressedBackground = #fff2
@@ -183,6 +184,7 @@ MenuBar.selectionEmbeddedInsets = 3,0,3,0
 MenuBar.selectionArc = 8
 MenuBar.selectionBackground = lighten(@menuBackground,15%,derived)
 MenuBar.selectionForeground = @foreground
+MenuBar.borderColor = over($Separator.foreground,$MenuBar.background)
 
 
 #---- MenuItem ----
@@ -293,6 +295,7 @@ TextPane.selectionForeground = @textSelectionForeground
 
 ToggleButton.disabledBackground = $Button.disabledBackground
 ToggleButton.selectedBackground = lighten($ToggleButton.background,20%,derived)
+ToggleButton.selectedForeground = lighten($ToggleButton.foreground,20%)
 
 ToggleButton.toolbar.selectedBackground = #fff3
 

flatlaf-core/src/main/resources/com/formdev/flatlaf/themes/FlatMacLightLaf.properties

@@ -79,7 +79,7 @@
 # general background and foreground (text color)
 @background = #f6f6f6
 @foreground = over(@nsControlTextColor,@background)
-@disabledForeground = over(@nsTertiaryLabelColor,@background)
+@disabledForeground = over(@nsSecondaryLabelColor,@background)
 
 # component background
 @buttonBackground = @nsControlColor
@@ -184,6 +184,7 @@ MenuBar.selectionEmbeddedInsets = 3,0,3,0
 MenuBar.selectionArc = 8
 MenuBar.selectionBackground = darken(@menuBackground,15%,derived)
 MenuBar.selectionForeground = @foreground
+MenuBar.borderColor = over($Separator.foreground,$MenuBar.background)
 
 
 #---- MenuItem ----

flatlaf-core/src/test/java/com/formdev/flatlaf/TestUIDefaultsLoader.java

@@ -17,6 +17,9 @@
 package com.formdev.flatlaf;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
+import static org.junit.jupiter.api.Assertions.assertThrowsExactly;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import java.awt.Color;
 import java.awt.Dimension;
 import java.awt.Font;
@@ -27,8 +30,16 @@ import javax.swing.border.Border;
 import javax.swing.UIDefaults.ActiveValue;
 import javax.swing.UIDefaults.LazyValue;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.function.Executable;
 import com.formdev.flatlaf.ui.FlatEmptyBorder;
 import com.formdev.flatlaf.ui.FlatLineBorder;
+import com.formdev.flatlaf.util.DerivedColor;
+import com.formdev.flatlaf.util.ColorFunctions.ColorFunction;
+import com.formdev.flatlaf.util.ColorFunctions.Fade;
+import com.formdev.flatlaf.util.ColorFunctions.HSLChange;
+import com.formdev.flatlaf.util.ColorFunctions.HSLIncreaseDecrease;
+import com.formdev.flatlaf.util.ColorFunctions.Mix;
+import com.formdev.flatlaf.util.ColorFunctions.Mix2;
 
 /**
  * @author Karl Tauber
@@ -180,6 +191,336 @@ public class TestUIDefaultsLoader
 		assertEquals( expected, ((LazyValue)UIDefaultsLoader.parseValue( "dummyIcon", value, null )).createValue( null ) );
 	}
 
+	@Test
+	void parseColorFunctions() {
+		// lighten
+		assertEquals( new Color( 0xff6666 ), parseColor( "lighten(#f00, 20%)" ) );
+		assertEquals( new Color( 0xff3333 ), parseColor( "lighten(#f00, 20%, relative)" ) );
+		assertEquals( new Color( 0xaaaaaa ), parseColor( "lighten(#ddd, 20%, autoInverse)" ) );
+		assertEquals( new Color( 0xb1b1b1 ), parseColor( "lighten(#ddd, 20%, relative autoInverse)" ) );
+
+		// darken
+		assertEquals( new Color( 0x990000 ), parseColor( "darken(#f00, 20%)" ) );
+		assertEquals( new Color( 0xcc0000 ), parseColor( "darken(#f00, 20%, relative)" ) );
+		assertEquals( new Color( 0x555555 ), parseColor( "darken(#222, 20%, autoInverse)" ) );
+		assertEquals( new Color( 0x292929 ), parseColor( "darken(#222, 20%, relative autoInverse)" ) );
+
+		// saturate
+		assertEquals( new Color( 0xf32e2e ), parseColor( "saturate(#d44, 20%)" ) );
+		assertEquals( new Color( 0xec3535 ), parseColor( "saturate(#d44, 20%, relative)" ) );
+		assertEquals( new Color( 0xc75a5a ), parseColor( "saturate(#d44, 20%, autoInverse)" ) );
+		assertEquals( new Color( 0xce5353 ), parseColor( "saturate(#d44, 20%, relative autoInverse)" ) );
+
+		// desaturate
+		assertEquals( new Color( 0x745858 ), parseColor( "desaturate(#844, 20%)" ) );
+		assertEquals( new Color( 0x814b4b ), parseColor( "desaturate(#844, 20%, relative)" ) );
+		assertEquals( new Color( 0x9c3030 ), parseColor( "desaturate(#844, 20%, autoInverse)" ) );
+		assertEquals( new Color( 0x8f3d3d ), parseColor( "desaturate(#844, 20%, relative autoInverse)" ) );
+
+		// fadein
+		assertEquals( new Color( 0xddff0000, true ), parseColor( "fadein(#f00a, 20%)" ) );
+		assertEquals( new Color( 0xccff0000, true ), parseColor( "fadein(#f00a, 20%, relative)" ) );
+		assertEquals( new Color( 0x77ff0000, true ), parseColor( "fadein(#f00a, 20%, autoInverse)" ) );
+		assertEquals( new Color( 0x88ff0000, true ), parseColor( "fadein(#f00a, 20%, relative autoInverse)" ) );
+
+		// fadeout
+		assertEquals( new Color( 0x11ff0000, true ), parseColor( "fadeout(#f004, 20%)" ) );
+		assertEquals( new Color( 0x36ff0000, true ), parseColor( "fadeout(#f004, 20%, relative)" ) );
+		assertEquals( new Color( 0x77ff0000, true ), parseColor( "fadeout(#f004, 20%, autoInverse)" ) );
+		assertEquals( new Color( 0x52ff0000, true ), parseColor( "fadeout(#f004, 20%, relative autoInverse)" ) );
+
+		// fade
+		assertEquals( new Color( 0x33ff0000, true ), parseColor( "fade(#f00, 20%)" ) );
+		assertEquals( new Color( 0xccff0000, true ), parseColor( "fade(#ff000010, 80%)" ) );
+
+		// spin
+		assertEquals( new Color( 0xffaa00 ), parseColor( "spin(#f00, 40)" ) );
+		assertEquals( new Color( 0xff00aa ), parseColor( "spin(#f00, -40)" ) );
+
+		// changeHue / changeSaturation / changeLightness / changeAlpha
+		assertEquals( new Color( 0xffaa00 ), parseColor( "changeHue(#f00, 40)" ) );
+		assertEquals( new Color( 0xb34d4d ), parseColor( "changeSaturation(#f00, 40%)" ) );
+		assertEquals( new Color( 0xcc0000 ), parseColor( "changeLightness(#f00, 40%)" ) );
+		assertEquals( new Color( 0x66ff0000, true ), parseColor( "changeAlpha(#f00, 40%)" ) );
+
+		// mix
+		assertEquals( new Color( 0x808000 ), parseColor( "mix(#f00, #0f0)" ) );
+		assertEquals( new Color( 0xbf4000 ), parseColor( "mix(#f00, #0f0, 75%)" ) );
+
+		// tint
+		assertEquals( new Color( 0xff80ff ), parseColor( "tint(#f0f)" ) );
+		assertEquals( new Color( 0xffbfff ), parseColor( "tint(#f0f, 75%)" ) );
+
+		// shade
+		assertEquals( new Color( 0x800080 ), parseColor( "shade(#f0f)" ) );
+		assertEquals( new Color( 0x400040 ), parseColor( "shade(#f0f, 75%)" ) );
+
+		// contrast
+		assertEquals( new Color( 0x0000ff ), parseColor( "contrast(#bbb, #00f, #0f0)" ) );
+		assertEquals( new Color( 0x00ff00 ), parseColor( "contrast(#444, #00f, #0f0)" ) );
+		assertEquals( new Color( 0x00ff00 ), parseColor( "contrast(#bbb, #00f, #0f0, 60%)" ) );
+
+		// rgb / rgba
+		assertEquals( new Color( 0x5a8120 ), parseColor( "rgb(90, 129, 32)" ) );
+		assertEquals( new Color( 0x5a8120 ), parseColor( "rgb(90, 129, 32)" ) );
+		assertEquals( new Color( 0x197fb2 ), parseColor( "rgb(10%,50%,70%)" ) );
+		assertEquals( new Color( 0x197f46 ), parseColor( "rgb(10%,50%,70)" ) );
+		assertEquals( new Color( 0x405a8120, true ), parseColor( "rgba(90, 129, 32, 64)" ) );
+		assertEquals( new Color( 0x335a8120, true ), parseColor( "rgba(90, 129, 32, 20%)" ) );
+
+		// hsl / hsla
+		assertEquals( new Color( 0x7fff00 ), parseColor( "hsl(90, 100%, 50%)" ) );
+		assertEquals( new Color( 0x337fff00, true ), parseColor( "hsla(90, 100%, 50%, 20%)" ) );
+	}
+
+	@Test
+	void parseLazyColorFunctions() {
+		// lighten
+		assertEquals( new Color( 0xff6666 ), parseColorLazy( "lighten(dummyColor, 20%, lazy)", new Color( 0xff0000 ) ) );
+
+		// darken
+		assertEquals( new Color( 0x990000 ), parseColorLazy( "darken(dummyColor, 20%, lazy)", new Color( 0xff0000 ) ) );
+
+		// saturate
+		assertEquals( new Color( 0xf32e2e ), parseColorLazy( "saturate(dummyColor, 20%, lazy)", new Color( 0xdd4444 ) ) );
+
+		// desaturate
+		assertEquals( new Color( 0x745858 ), parseColorLazy( "desaturate(dummyColor, 20%, lazy)", new Color( 0x884444 ) ) );
+
+		// fadein
+		assertEquals( new Color( 0xddff0000, true ), parseColorLazy( "fadein(dummyColor, 20%, lazy)", new Color( 0xaaff0000, true ) ) );
+
+		// fadeout
+		assertEquals( new Color( 0x11ff0000, true ), parseColorLazy( "fadeout(dummyColor, 20%, lazy)", new Color( 0x44ff0000, true ) ) );
+
+		// fade
+		assertEquals( new Color( 0x33ff0000, true ), parseColorLazy( "fade(dummyColor, 20%, lazy)", new Color( 0xff0000 ) ) );
+		assertEquals( new Color( 0xccff0000, true ), parseColorLazy( "fade(dummyColor, 80%, lazy)", new Color( 0x10ff0000, true ) ) );
+
+		// spin
+		assertEquals( new Color( 0xffaa00 ), parseColorLazy( "spin(dummyColor, 40, lazy)", new Color( 0xff0000 ) ) );
+		assertEquals( new Color( 0xff00aa ), parseColorLazy( "spin(dummyColor, -40, lazy)", new Color( 0xff0000 ) ) );
+
+		// changeHue / changeSaturation / changeLightness / changeAlpha
+		assertEquals( new Color( 0xffaa00 ), parseColorLazy( "changeHue(dummyColor, 40, lazy)", new Color( 0xff0000 ) ) );
+		assertEquals( new Color( 0xb34d4d ), parseColorLazy( "changeSaturation(dummyColor, 40%, lazy)", new Color( 0xff0000 ) ) );
+		assertEquals( new Color( 0xcc0000 ), parseColorLazy( "changeLightness(dummyColor, 40%, lazy)", new Color( 0xff0000 ) ) );
+		assertEquals( new Color( 0x66ff0000, true ), parseColorLazy( "changeAlpha(dummyColor, 40%, lazy)", new Color( 0xff0000 ) ) );
+
+		// mix
+		assertEquals( new Color( 0x808000 ), parseColorLazy( "mix(#f00, dummyColor, lazy)", new Color( 0x00ff00 ) ) );
+		assertEquals( new Color( 0xbf4000 ), parseColorLazy( "mix(#f00, dummyColor, 75%, lazy)", new Color( 0x00ff00 ) ) );
+
+		// tint
+		assertEquals( new Color( 0xff80ff ), parseColorLazy( "tint(dummyColor, lazy)", new Color( 0xff00ff ) ) );
+		assertEquals( new Color( 0xffbfff ), parseColorLazy( "tint(dummyColor, 75%, lazy)", new Color( 0xff00ff ) ) );
+
+		// shade
+		assertEquals( new Color( 0x800080 ), parseColorLazy( "shade(dummyColor, lazy)", new Color( 0xff00ff ) ) );
+		assertEquals( new Color( 0x400040 ), parseColorLazy( "shade(dummyColor, 75%, lazy)", new Color( 0xff00ff ) ) );
+	}
+
+	@Test
+	void parseDerivedColorFunctions() {
+		// mix
+		assertDerivedColorEquals( new Color( 0x808000 ), "mix(#f00, #0f0, derived)", new Mix2( Color.red, 50 ) );
+		assertDerivedColorEquals( new Color( 0xbf4000 ), "mix(#f00, #0f0, 75%, derived)", new Mix2( Color.red, 75 ) );
+
+		// tint
+		assertDerivedColorEquals( new Color( 0xff80ff ), "tint(#f0f, derived)", new Mix2( Color.white, 50 ) );
+		assertDerivedColorEquals( new Color( 0xffbfff ), "tint(#f0f, 75%, derived)", new Mix2( Color.white, 75 ) );
+
+		// shade
+		assertDerivedColorEquals( new Color( 0x800080 ), "shade(#f0f, derived)", new Mix2( Color.black, 50 ) );
+		assertDerivedColorEquals( new Color( 0x400040 ), "shade(#f0f, 75%, derived)", new Mix2( Color.black, 75 ) );
+
+
+		// lighten
+		assertDerivedColorEquals( new Color( 0xff6666 ), "lighten(#f00, 20%, derived)",                                 new HSLIncreaseDecrease( 2, true,  20, false, true  ) );
+		assertDerivedColorEquals( new Color( 0xff3333 ), "lighten(#f00, 20%, derived relative)",                        new HSLIncreaseDecrease( 2, true,  20, true,  true  ) );
+		assertDerivedColorEquals( new Color( 0xffffff ), "lighten(#ddd, 20%, derived noAutoInverse)",                   new HSLIncreaseDecrease( 2, true,  20, false, false ) );
+		assertDerivedColorEquals( new Color( 0xffffff ), "lighten(#ddd, 20%, derived relative noAutoInverse)",          new HSLIncreaseDecrease( 2, true,  20, true,  false ) );
+
+		// darken
+		assertDerivedColorEquals( new Color( 0x990000 ), "darken(#f00, 20%, derived)",                                  new HSLIncreaseDecrease( 2, false, 20, false, true  ) );
+		assertDerivedColorEquals( new Color( 0xcc0000 ), "darken(#f00, 20%, derived relative)",                         new HSLIncreaseDecrease( 2, false, 20, true,  true  ) );
+		assertDerivedColorEquals( new Color( 0x000000 ), "darken(#222, 20%, derived noAutoInverse)",                    new HSLIncreaseDecrease( 2, false, 20, false, false ) );
+		assertDerivedColorEquals( new Color( 0x1b1b1b ), "darken(#222, 20%, derived relative noAutoInverse)",           new HSLIncreaseDecrease( 2, false, 20, true,  false ) );
+
+		// saturate
+		assertDerivedColorEquals( new Color( 0xc75a5a ), "saturate(#d44, 20%, derived)",                                new HSLIncreaseDecrease( 1, true,  20, false, true  ) );
+		assertDerivedColorEquals( new Color( 0xce5353 ), "saturate(#d44, 20%, derived relative)",                       new HSLIncreaseDecrease( 1, true,  20, true,  true  ) );
+		assertDerivedColorEquals( new Color( 0xf32e2e ), "saturate(#d44, 20%, derived noAutoInverse)",                  new HSLIncreaseDecrease( 1, true,  20, false, false ) );
+		assertDerivedColorEquals( new Color( 0xec3535 ), "saturate(#d44, 20%, derived relative noAutoInverse)",         new HSLIncreaseDecrease( 1, true,  20, true,  false ) );
+
+		// desaturate
+		assertDerivedColorEquals( new Color( 0x9c3030 ), "desaturate(#844, 20%, derived)",                              new HSLIncreaseDecrease( 1, false, 20, false, true  ) );
+		assertDerivedColorEquals( new Color( 0x8f3d3d ), "desaturate(#844, 20%, derived relative)",                     new HSLIncreaseDecrease( 1, false, 20, true,  true  ) );
+		assertDerivedColorEquals( new Color( 0x745858 ), "desaturate(#844, 20%, derived noAutoInverse)",                new HSLIncreaseDecrease( 1, false, 20, false, false ) );
+		assertDerivedColorEquals( new Color( 0x814b4b ), "desaturate(#844, 20%, derived relative noAutoInverse)",       new HSLIncreaseDecrease( 1, false, 20, true,  false ) );
+
+		// fadein
+		assertDerivedColorEquals( new Color( 0x77ff0000, true ), "fadein(#f00a, 20%, derived)",                         new HSLIncreaseDecrease( 3, true,  20, false, true  ) );
+		assertDerivedColorEquals( new Color( 0x88ff0000, true ), "fadein(#f00a, 20%, derived relative)",                new HSLIncreaseDecrease( 3, true,  20, true,  true  ) );
+		assertDerivedColorEquals( new Color( 0xddff0000, true ), "fadein(#f00a, 20%, derived noAutoInverse)",           new HSLIncreaseDecrease( 3, true,  20, false, false ) );
+		assertDerivedColorEquals( new Color( 0xccff0000, true ), "fadein(#f00a, 20%, derived relative noAutoInverse)",  new HSLIncreaseDecrease( 3, true,  20, true,  false ) );
+
+		// fadeout
+		assertDerivedColorEquals( new Color( 0x77ff0000, true ), "fadeout(#f004, 20%, derived)",                        new HSLIncreaseDecrease( 3, false, 20, false, true  ) );
+		assertDerivedColorEquals( new Color( 0x52ff0000, true ), "fadeout(#f004, 20%, derived relative)",               new HSLIncreaseDecrease( 3, false, 20, true,  true  ) );
+		assertDerivedColorEquals( new Color( 0x11ff0000, true ), "fadeout(#f004, 20%, derived noAutoInverse)",          new HSLIncreaseDecrease( 3, false, 20, false, false ) );
+		assertDerivedColorEquals( new Color( 0x36ff0000, true ), "fadeout(#f004, 20%, derived relative noAutoInverse)", new HSLIncreaseDecrease( 3, false, 20, true,  false ) );
+
+		// fade
+		assertDerivedColorEquals( new Color( 0x33ff0000, true ), "fade(#f00, 20%, derived)",      new Fade( 20 ) );
+		assertDerivedColorEquals( new Color( 0xccff0000, true ), "fade(#ff000010, 80%, derived)", new Fade( 80 ) );
+
+		// spin
+		assertDerivedColorEquals( new Color( 0xffaa00 ), "spin(#f00, 40, derived)",  new HSLIncreaseDecrease( 0, true, 40, false, false ) );
+		assertDerivedColorEquals( new Color( 0xff00aa ), "spin(#f00, -40, derived)", new HSLIncreaseDecrease( 0, true, -40, false, false ) );
+
+		// changeHue / changeSaturation / changeLightness / changeAlpha
+		assertDerivedColorEquals( new Color( 0xffaa00 ), "changeHue(#f00, 40, derived)",            new HSLChange( 0, 40 ) );
+		assertDerivedColorEquals( new Color( 0xb34d4d ), "changeSaturation(#f00, 40%, derived)",    new HSLChange( 1, 40 ) );
+		assertDerivedColorEquals( new Color( 0xcc0000 ), "changeLightness(#f00, 40%, derived)",     new HSLChange( 2, 40 ) );
+		assertDerivedColorEquals( new Color( 0x66ff0000, true ), "changeAlpha(#f00, 40%, derived)", new HSLChange( 3, 40 ) );
+
+		// mix
+		assertDerivedColorEquals( new Color( 0x808000 ), "mix(#f00, #0f0, derived)",      new Mix2( new Color( 0xff0000 ), 50 ) );
+		assertDerivedColorEquals( new Color( 0xbf4000 ), "mix(#f00, #0f0, 75%, derived)", new Mix2( new Color( 0xff0000 ), 75 ) );
+
+		// tint
+		assertDerivedColorEquals( new Color( 0xff80ff ), "tint(#f0f, derived)",           new Mix2( new Color( 0xffffff ), 50 ) );
+		assertDerivedColorEquals( new Color( 0xffbfff ), "tint(#f0f, 75%, derived)",      new Mix2( new Color( 0xffffff ), 75 ) );
+
+		// shade
+		assertDerivedColorEquals( new Color( 0x800080 ), "shade(#f0f, derived)",          new Mix2( new Color( 0x000000 ), 50 ) );
+		assertDerivedColorEquals( new Color( 0x400040 ), "shade(#f0f, 75%, derived)",     new Mix2( new Color( 0x000000 ), 75 ) );
+	}
+
+	private void assertDerivedColorEquals( Color expectedColor, String actualStyle, ColorFunction... expectedFunctions ) {
+		Object actual = parseColor( actualStyle );
+		assertInstanceOf( DerivedColor.class, actual );
+		assertEquals( expectedColor, actual );
+
+		ColorFunction[] actualFunctions = ((DerivedColor)actual).getFunctions();
+		assertEquals( expectedFunctions.length, actualFunctions.length );
+		for( int i = 0; i < expectedFunctions.length; i++ )
+			assertColorFunctionEquals( expectedFunctions[i], actualFunctions[i] );
+	}
+
+	private void assertColorFunctionEquals( ColorFunction expected, ColorFunction actual ) {
+		assertEquals( expected.getClass(), actual.getClass() );
+
+		if( expected instanceof HSLIncreaseDecrease ) {
+			HSLIncreaseDecrease e = (HSLIncreaseDecrease) expected;
+			HSLIncreaseDecrease a = (HSLIncreaseDecrease) actual;
+			assertEquals( e.hslIndex, a.hslIndex );
+			assertEquals( e.increase, a.increase );
+			assertEquals( e.amount, a.amount );
+			assertEquals( e.relative, a.relative );
+			assertEquals( e.autoInverse, a.autoInverse );
+		} else if( expected instanceof HSLChange ) {
+			HSLChange e = (HSLChange) expected;
+			HSLChange a = (HSLChange) actual;
+			assertEquals( e.hslIndex, a.hslIndex );
+			assertEquals( e.value, a.value );
+		} else if( expected instanceof Fade ) {
+			Fade e = (Fade) expected;
+			Fade a = (Fade) actual;
+			assertEquals( e.amount, a.amount );
+		} else if( expected instanceof Mix ) {
+			Mix e = (Mix) expected;
+			Mix a = (Mix) actual;
+			assertEquals( e.color2, a.color2 );
+			assertEquals( e.weight, a.weight );
+		} else if( expected instanceof Mix2 ) {
+			Mix2 e = (Mix2) expected;
+			Mix2 a = (Mix2) actual;
+			assertEquals( e.color1, a.color1 );
+			assertEquals( e.weight, a.weight );
+		} else
+			assertTrue( false );
+	}
+
+	private Object parseColor( String value ) {
+		return UIDefaultsLoader.parseValue( "dummyColor", value, null );
+	}
+
+	private Object parseColorLazy( String value, Color actual ) {
+		UIManager.put( "dummyColor", actual );
+		Object v = UIDefaultsLoader.parseValue( "dummyColor", value, null );
+		assertInstanceOf( LazyValue.class, v );
+		return ((LazyValue)v).createValue( null );
+	}
+
+	//---- invalid values -----------------------------------------------------
+
+	@Test
+	void parseInvalidValue() {
+		assertThrows( new IllegalArgumentException( "invalid character 'abc'" ), () -> UIDefaultsLoader.parseValue( "dummyChar", "abc", null ) );
+		assertThrows( new NumberFormatException( "invalid integer or float '123abc'" ), () -> UIDefaultsLoader.parseValue( "dummyWidth", "123abc", null ) );
+		assertThrows( new NumberFormatException( "invalid integer or float '1.23abc'" ), () -> UIDefaultsLoader.parseValue( "dummyWidth", "1.23abc", null ) );
+
+		assertThrows( new IllegalArgumentException( "invalid insets '1,abc,3,4'" ), () -> UIDefaultsLoader.parseValue( "dummyInsets", "1,abc,3,4", null ) );
+		assertThrows( new IllegalArgumentException( "invalid insets '1,2,3'" ), () -> UIDefaultsLoader.parseValue( "dummyInsets", "1,2,3", null ) );
+		assertThrows( new IllegalArgumentException( "invalid size '1abc'" ), () -> UIDefaultsLoader.parseValue( "dummySize", "1abc", null ) );
+		assertThrows( new IllegalArgumentException( "invalid size '1'" ), () -> UIDefaultsLoader.parseValue( "dummySize", "1", null ) );
+		assertThrows( new IllegalArgumentException( "invalid color '#f0'" ), () -> UIDefaultsLoader.parseValue( "dummy", "#f0", null ) );
+		assertThrows( new IllegalArgumentException( "invalid color '#f0'" ), () -> UIDefaultsLoader.parseValue( "dummyColor", "#f0", null ) );
+	}
+
+	@Test
+	void parseInvalidValueWithJavaType() {
+		assertThrows( new IllegalArgumentException( "invalid boolean 'falseyy'" ), () -> UIDefaultsLoader.parseValue( "dummy", "falseyy", boolean.class ) );
+		assertThrows( new IllegalArgumentException( "invalid boolean 'falseyy'" ), () -> UIDefaultsLoader.parseValue( "dummy", "falseyy", Boolean.class ) );
+
+		assertThrows( new IllegalArgumentException( "invalid character 'abc'" ), () -> UIDefaultsLoader.parseValue( "dummyChar", "abc", char.class ) );
+		assertThrows( new IllegalArgumentException( "invalid character 'abc'" ), () -> UIDefaultsLoader.parseValue( "dummyChar", "abc", Character.class ) );
+		assertThrows( new NumberFormatException( "invalid integer '123abc'" ), () -> UIDefaultsLoader.parseValue( "dummyWidth", "123abc", int.class ) );
+		assertThrows( new NumberFormatException( "invalid integer '123abc'" ), () -> UIDefaultsLoader.parseValue( "dummyWidth", "123abc", Integer.class ) );
+		assertThrows( new NumberFormatException( "invalid float '1.23abc'" ), () -> UIDefaultsLoader.parseValue( "dummyWidth", "1.23abc", float.class ) );
+		assertThrows( new NumberFormatException( "invalid float '1.23abc'" ), () -> UIDefaultsLoader.parseValue( "dummyWidth", "1.23abc", Float.class ) );
+
+		assertThrows( new IllegalArgumentException( "invalid insets '1,abc,3'" ), () -> UIDefaultsLoader.parseValue( "dummyInsets", "1,abc,3", Insets.class ) );
+		assertThrows( new IllegalArgumentException( "invalid insets '1,2,3'" ), () -> UIDefaultsLoader.parseValue( "dummyInsets", "1,2,3", Insets.class ) );
+		assertThrows( new IllegalArgumentException( "invalid size '1abc'" ), () -> UIDefaultsLoader.parseValue( "dummySize", "1abc", Dimension.class ) );
+		assertThrows( new IllegalArgumentException( "invalid size '1'" ), () -> UIDefaultsLoader.parseValue( "dummySize", "1", Dimension.class ) );
+		assertThrows( new IllegalArgumentException( "invalid color '#f0'" ), () -> UIDefaultsLoader.parseValue( "dummy", "#f0", Color.class ) );
+		assertThrows( new IllegalArgumentException( "invalid color '#f0'" ), () -> UIDefaultsLoader.parseValue( "dummyColor", "#f0", Color.class ) );
+	}
+
+	@Test
+	void parseInvalidBorders() {
+		assertThrows( new IllegalArgumentException( "invalid border '1,abc,3,4' (invalid insets '1,abc,3,4')" ), () -> UIDefaultsLoader.parseValue( "dummyBorder", "1,abc,3,4", null ) );
+		assertThrows( new IllegalArgumentException( "invalid border '1,2,3' (invalid insets '1,2,3')" ), () -> UIDefaultsLoader.parseValue( "dummyBorder", "1,2,3", null ) );
+		assertThrows( new IllegalArgumentException( "invalid border '1,2,3,,,' (invalid insets '1,2,3,,,')" ), () -> UIDefaultsLoader.parseValue( "dummyBorder", "1,2,3,,,", null ) );
+		assertThrows( new IllegalArgumentException( "invalid border '1,2,3,4,#f0' (invalid color '#f0')" ), () -> UIDefaultsLoader.parseValue( "dummyBorder", "1,2,3,4,#f0", null ) );
+		assertThrows( new IllegalArgumentException( "invalid border '1,2,3,4,#f00,2.5abc' (invalid float '2.5abc')" ), () -> UIDefaultsLoader.parseValue( "dummyBorder", "1,2,3,4,#f00,2.5abc", null ) );
+		assertThrows( new IllegalArgumentException( "invalid border '1,2,3,4,#f00,2.5,6abc' (invalid integer '6abc')" ), () -> UIDefaultsLoader.parseValue( "dummyBorder", "1,2,3,4,#f00,2.5,6abc", null ) );
+	}
+
+	@Test
+	void parseInvalidFonts() {
+		// size
+		assertThrows( new IllegalArgumentException( "invalid font '12abc' (invalid integer '12abc')" ),    () -> UIDefaultsLoader.parseValue( "dummyFont", "12abc", null ) );
+		assertThrows( new IllegalArgumentException( "invalid font '+12abc' (invalid integer '+12abc')" ),  () -> UIDefaultsLoader.parseValue( "dummyFont", "+12abc", null ) );
+		assertThrows( new IllegalArgumentException( "invalid font '+3abc' (invalid integer '+3abc')" ),    () -> UIDefaultsLoader.parseValue( "dummyFont", "+3abc", null ) );
+		assertThrows( new IllegalArgumentException( "invalid font '-4abc' (invalid integer '-4abc')" ),    () -> UIDefaultsLoader.parseValue( "dummyFont", "-4abc", null ) );
+		assertThrows( new IllegalArgumentException( "invalid font '150abc%' (invalid integer '150abc')" ), () -> UIDefaultsLoader.parseValue( "dummyFont", "150abc%", null ) );
+		assertThrows( new IllegalArgumentException( "invalid font 'bold 13abc Monospaced' (invalid integer '13abc')" ), () -> UIDefaultsLoader.parseValue( "dummyFont", "bold 13abc Monospaced", null ) );
+
+		// invalid combinations of styles
+		assertThrows( new IllegalArgumentException( "invalid font 'bold +italic': can not mix absolute style (e.g. 'bold') with derived style (e.g. '+italic')" ), () -> UIDefaultsLoader.parseValue( "dummyFont", "bold +italic", null ) );
+		assertThrows( new IllegalArgumentException( "invalid font '+bold -bold': can not use '+bold' and '-bold'" ), () -> UIDefaultsLoader.parseValue( "dummyFont", "+bold -bold", null ) );
+		assertThrows( new IllegalArgumentException( "invalid font '+italic -italic': can not use '+italic' and '-italic'" ), () -> UIDefaultsLoader.parseValue( "dummyFont", "+italic -italic", null ) );
+	}
+
+	private void assertThrows( Throwable expected, Executable executable ) {
+		Throwable actual = assertThrowsExactly( expected.getClass(), executable );
+		assertEquals( expected.getMessage(), actual.getMessage() );
+	}
+
 	//---- class TestInstance -------------------------------------------------
 
 	@SuppressWarnings( "EqualsHashCode" ) // Error Prone

flatlaf-core/src/test/java/com/formdev/flatlaf/ui/TestFlatButton.java

@@ -0,0 +1,404 @@
+/*
+ * Copyright 2025 FormDev Software GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.formdev.flatlaf.ui;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import java.awt.Color;
+import java.util.HashMap;
+import java.util.function.Function;
+import java.util.function.Predicate;
+import javax.swing.JButton;
+import javax.swing.JComponent;
+import javax.swing.JRootPane;
+import javax.swing.UIManager;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+import com.formdev.flatlaf.FlatClientProperties;
+import com.formdev.flatlaf.FlatLaf;
+
+/**
+ * @author Karl Tauber
+ */
+public class TestFlatButton
+{
+	@BeforeAll
+	static void setup() {
+		String[] defs = {
+			"Button.background", "#000001",
+			"Button.foreground", "#000002",
+			"Button.focusedBackground", "#000003",
+			"Button.focusedForeground", "#000004",
+			"Button.hoverBackground", "#000005",
+			"Button.hoverForeground", "#000006",
+			"Button.pressedBackground", "#000007",
+			"Button.pressedForeground", "#000008",
+			"Button.selectedBackground", "#000009",
+			"Button.selectedForeground", "#00000a",
+			"Button.disabledBackground", "#00000b",
+			"Button.disabledText", "#00000c",
+			"Button.disabledSelectedBackground", "#00000d",
+			"Button.disabledSelectedForeground", "#00000e",
+
+			"Button.default.background", "#000101",
+			"Button.default.foreground", "#000102",
+			"Button.default.focusedBackground", "#000103",
+			"Button.default.focusedForeground", "#000104",
+			"Button.default.hoverBackground", "#000105",
+			"Button.default.hoverForeground", "#000106",
+			"Button.default.pressedBackground", "#000107",
+			"Button.default.pressedForeground", "#000108",
+
+			"Button.toolbar.hoverBackground", "#000201",
+			"Button.toolbar.hoverForeground", "#000202",
+			"Button.toolbar.pressedBackground", "#000203",
+			"Button.toolbar.pressedForeground", "#000204",
+			"Button.toolbar.selectedBackground", "#000205",
+			"Button.toolbar.selectedForeground", "#000206",
+			"Button.toolbar.disabledSelectedBackground", "#000207",
+			"Button.toolbar.disabledSelectedForeground", "#000208",
+		};
+
+		HashMap<String, String> globalExtraDefaults = new HashMap<>();
+		for( int i = 0; i < defs.length; i += 2 )
+			globalExtraDefaults.put( defs[i], defs[i+1] );
+		FlatLaf.setGlobalExtraDefaults( globalExtraDefaults );
+
+		TestUtils.setup( false );
+	}
+
+	@AfterAll
+	static void cleanup() {
+		TestUtils.cleanup();
+	}
+
+	@Test
+	void background() {
+		JButton b = new JButton();
+
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getBackground( b2 ),
+			UIManager.getColor( "Button.background" ),
+			UIManager.getColor( "Button.disabledBackground" ),
+			UIManager.getColor( "Button.focusedBackground" ),
+			UIManager.getColor( "Button.hoverBackground" ),
+			UIManager.getColor( "Button.pressedBackground" ) );
+
+		// selected
+		b.setSelected( true );
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getBackground( b2 ),
+			UIManager.getColor( "Button.selectedBackground" ),
+			UIManager.getColor( "Button.disabledSelectedBackground" ),
+			null,
+			null,
+			UIManager.getColor( "Button.pressedBackground" ) );
+		b.setSelected( false );
+
+		// default
+		JRootPane rootPane = new JRootPane();
+		rootPane.getContentPane().add( b );
+		rootPane.setDefaultButton( b );
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getBackground( b2 ),
+			UIManager.getColor( "Button.default.background" ),
+			UIManager.getColor( "Button.disabledBackground" ),
+			UIManager.getColor( "Button.default.focusedBackground" ),
+			UIManager.getColor( "Button.default.hoverBackground" ),
+			UIManager.getColor( "Button.default.pressedBackground" ) );
+		rootPane.getContentPane().remove( b );
+	}
+
+	@Test
+	void foreground() {
+		JButton b = new JButton();
+
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getForeground( b2 ),
+			UIManager.getColor( "Button.foreground" ),
+			UIManager.getColor( "Button.disabledText" ),
+			UIManager.getColor( "Button.focusedForeground" ),
+			UIManager.getColor( "Button.hoverForeground" ),
+			UIManager.getColor( "Button.pressedForeground" ) );
+
+		// selected
+		b.setSelected( true );
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getForeground( b2 ),
+			UIManager.getColor( "Button.selectedForeground" ),
+			FlatUIUtils.getUIColor( "Button.disabledSelectedForeground", "Button.disabledText" ),
+			null,
+			null,
+			UIManager.getColor( "Button.pressedForeground" ) );
+		b.setSelected( false );
+
+		// default
+		JRootPane rootPane = new JRootPane();
+		rootPane.getContentPane().add( b );
+		rootPane.setDefaultButton( b );
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getForeground( b2 ),
+			UIManager.getColor( "Button.default.foreground" ),
+			UIManager.getColor( "Button.disabledText" ),
+			UIManager.getColor( "Button.default.focusedForeground" ),
+			UIManager.getColor( "Button.default.hoverForeground" ),
+			UIManager.getColor( "Button.default.pressedForeground" ) );
+		rootPane.getContentPane().remove( b );
+	}
+
+	@Test
+	void backgroundExplicit() {
+		JButton b = new JButton();
+
+		Color c = new Color( 0x020001 );
+		b.setBackground( c );
+
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getBackground( b2 ),
+			c,
+			UIManager.getColor( "Button.disabledBackground" ),
+			null,
+			UIManager.getColor( "Button.hoverBackground" ),
+			UIManager.getColor( "Button.pressedBackground" ) );
+
+		// selected
+		b.setSelected( true );
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getBackground( b2 ),
+			UIManager.getColor( "Button.selectedBackground" ),
+			UIManager.getColor( "Button.disabledSelectedBackground" ),
+			null,
+			null,
+			UIManager.getColor( "Button.pressedBackground" ) );
+		b.setSelected( false );
+
+		// default
+		JRootPane rootPane = new JRootPane();
+		rootPane.getContentPane().add( b );
+		rootPane.setDefaultButton( b );
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getBackground( b2 ),
+			c,
+			UIManager.getColor( "Button.disabledBackground" ),
+			null,
+			UIManager.getColor( "Button.default.hoverBackground" ),
+			UIManager.getColor( "Button.default.pressedBackground" ) );
+		rootPane.getContentPane().remove( b );
+	}
+
+	@Test
+	void foregroundExplicit() {
+		JButton b = new JButton();
+
+		Color c = new Color( 0x020001 );
+		b.setForeground( c );
+
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getForeground( b2 ),
+			c,
+			UIManager.getColor( "Button.disabledText" ),
+			null,
+			UIManager.getColor( "Button.hoverForeground" ),
+			UIManager.getColor( "Button.pressedForeground" ) );
+
+		// selected
+		b.setSelected( true );
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getForeground( b2 ),
+			c,
+			FlatUIUtils.getUIColor( "Button.disabledSelectedForeground", "Button.disabledText" ),
+			null,
+			null,
+			UIManager.getColor( "Button.pressedForeground" ) );
+		b.setSelected( false );
+
+		// default
+		JRootPane rootPane = new JRootPane();
+		rootPane.getContentPane().add( b );
+		rootPane.setDefaultButton( b );
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getForeground( b2 ),
+			c,
+			UIManager.getColor( "Button.disabledText" ),
+			null,
+			UIManager.getColor( "Button.default.hoverForeground" ),
+			UIManager.getColor( "Button.default.pressedForeground" ) );
+		rootPane.getContentPane().remove( b );
+	}
+
+	@Test
+	void backgroundStyled() {
+		JButton b = new JButton();
+
+		b.putClientProperty( FlatClientProperties.STYLE,
+			"background: #020001;" +
+			"disabledBackground: #020002;" +
+			"focusedBackground: #020003;" +
+			"hoverBackground: #020004;" +
+			"pressedBackground: #020005;" +
+			"selectedBackground: #020006;" +
+			"disabledSelectedBackground: #020007;" );
+
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getBackground( b2 ),
+			new Color( 0x020001 ),
+			new Color( 0x020002 ),
+			new Color( 0x020003 ),
+			new Color( 0x020004 ),
+			new Color( 0x020005 ) );
+
+		// selected
+		b.setSelected( true );
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getBackground( b2 ),
+			new Color( 0x020006 ),
+			new Color( 0x020007 ),
+			null,
+			null,
+			new Color( 0x020005 ) );
+		b.setSelected( false );
+
+
+		Color c = new Color( 0x0a0001 );
+		b.setBackground( c );
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getBackground( b2 ),
+			c,
+			new Color( 0x020002 ),
+			c,
+			new Color( 0x020004 ),
+			new Color( 0x020005 ) );
+		b.setSelected( true );
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getBackground( b2 ),
+			new Color( 0x020006 ),
+			new Color( 0x020007 ),
+			null,
+			null,
+			new Color( 0x020005 ) );
+		b.setSelected( false );
+
+
+		b = new JButton();
+		b.putClientProperty( FlatClientProperties.STYLE,
+			"default.background: #020101;" +
+			"disabledBackground: #020102;" +
+			"default.focusedBackground: #020103;" +
+			"default.hoverBackground: #020104;" +
+			"default.pressedBackground: #020105;" );
+
+		// default
+		JRootPane rootPane = new JRootPane();
+		rootPane.getContentPane().add( b );
+		rootPane.setDefaultButton( b );
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getBackground( b2 ),
+			new Color( 0x020101 ),
+			new Color( 0x020102 ),
+			new Color( 0x020103 ),
+			new Color( 0x020104 ),
+			new Color( 0x020105 ) );
+		rootPane.getContentPane().remove( b );
+	}
+
+	@Test
+	void foregroundStyled() {
+		JButton b = new JButton();
+
+		b.putClientProperty( FlatClientProperties.STYLE,
+			"foreground: #020001;" +
+			"disabledText: #020002;" +
+			"focusedForeground: #020003;" +
+			"hoverForeground: #020004;" +
+			"pressedForeground: #020005;" +
+			"selectedForeground: #020006;" +
+			"disabledSelectedForeground: #020007;" );
+
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getForeground( b2 ),
+			new Color( 0x020001 ),
+			new Color( 0x020002 ),
+			new Color( 0x020003 ),
+			new Color( 0x020004 ),
+			new Color( 0x020005 ) );
+
+		// selected
+		b.setSelected( true );
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getForeground( b2 ),
+			new Color( 0x020006 ),
+			new Color( 0x020007 ),
+			null,
+			null,
+			new Color( 0x020005 ) );
+		b.setSelected( false );
+
+
+		Color c = new Color( 0x0a0001 );
+		b.setForeground( c );
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getForeground( b2 ),
+			c,
+			new Color( 0x020002 ),
+			c,
+			new Color( 0x020004 ),
+			new Color( 0x020005 ) );
+		b.setSelected( true );
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getForeground( b2 ),
+			c,
+			new Color( 0x020007 ),
+			null,
+			null,
+			new Color( 0x020005 ) );
+		b.setSelected( false );
+
+
+		b = new JButton();
+		b.putClientProperty( FlatClientProperties.STYLE,
+			"default.foreground: #020101;" +
+			"disabledText: #020102;" +
+			"default.focusedForeground: #020103;" +
+			"default.hoverForeground: #020104;" +
+			"default.pressedForeground: #020105;" );
+
+		// default
+		JRootPane rootPane = new JRootPane();
+		rootPane.getContentPane().add( b );
+		rootPane.setDefaultButton( b );
+		testButtonColors( b, b2 -> ((FlatButtonUI)b2.getUI()).getForeground( b2 ),
+			new Color( 0x020101 ),
+			new Color( 0x020102 ),
+			new Color( 0x020103 ),
+			new Color( 0x020104 ),
+			new Color( 0x020105 ) );
+		rootPane.getContentPane().remove( b );
+	}
+
+	private void testButtonColors( JButton b, Function<JButton, Color> f,
+		Color expectedEnabled, Color expectedDisabled, Color expectedFocused,
+		Color expectedHover, Color expectedPressed
+		)
+	{
+		assertEquals( expectedEnabled, f.apply( b ) );
+
+		// disabled
+		b.setEnabled( false );
+		assertEquals( expectedDisabled, f.apply( b ) );
+		b.setEnabled( true );
+
+		// focused
+		if( expectedFocused != null ) {
+			b.putClientProperty( FlatClientProperties.COMPONENT_FOCUS_OWNER, (Predicate<JComponent>) c -> true );
+			assertEquals( expectedFocused, f.apply( b ) );
+			b.putClientProperty( FlatClientProperties.COMPONENT_FOCUS_OWNER, null );
+		}
+
+		// hover
+		if( expectedHover != null ) {
+			b.getModel().setRollover( true );
+			assertEquals( expectedHover, f.apply( b ) );
+			b.getModel().setRollover( false );
+		}
+
+		// pressed
+		if( expectedPressed != null ) {
+			b.getModel().setPressed( true );
+			assertEquals( expectedPressed, f.apply( b ) );
+			b.getModel().setPressed( false );
+		}
+	}
+}

flatlaf-core/src/test/java/com/formdev/flatlaf/ui/TestFlatStyleableInfo.java

@@ -30,6 +30,10 @@ import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 import com.formdev.flatlaf.icons.*;
+import com.formdev.flatlaf.ui.FlatInternalFrameUI.FlatInternalFrameBorder;
+import com.formdev.flatlaf.ui.TestFlatStyling.CustomCheckBoxIcon;
+import com.formdev.flatlaf.ui.TestFlatStyling.CustomIcon;
+import com.formdev.flatlaf.ui.TestFlatStyling.CustomRadioButtonIcon;
 
 /**
  * @author Karl Tauber
@@ -70,6 +74,8 @@ public class TestFlatStyleableInfo
 		//---- FlatHelpButtonIcon ----
 
 		expectedMap( expected,
+			"help.scale", float.class,
+
 			"help.focusWidth", int.class,
 			"help.focusColor", Color.class,
 			"help.innerFocusWidth", float.class,
@@ -144,7 +150,20 @@ public class TestFlatStyleableInfo
 
 	@Test
 	void checkBox() {
-		JCheckBox c = new JCheckBox();
+		checkBox( new JCheckBox() );
+	}
+
+	@Test
+	void checkBox2() {
+		checkBox( new JCheckBox( new CustomIcon() ) );
+	}
+
+	@Test
+	void checkBox3() {
+		checkBox( new JCheckBox( new CustomCheckBoxIcon() ) );
+	}
+
+	private void checkBox( JCheckBox c ) {
 		FlatCheckBoxUI ui = (FlatCheckBoxUI) c.getUI();
 
 		assertTrue( ui.getDefaultIcon() instanceof FlatCheckBoxIcon );
@@ -153,6 +172,11 @@ public class TestFlatStyleableInfo
 		Map<String, Class<?>> expected = new LinkedHashMap<>();
 		radioButton( expected );
 
+		// remove "icon." keys if check box has custom icon
+		Icon icon = c.getIcon();
+		if( icon != null && !(icon instanceof FlatCheckBoxIcon) )
+			expected.keySet().removeIf( key -> key.startsWith( "icon." ) );
+
 		assertMapEquals( expected, ui.getStyleableInfos( c ) );
 	}
 
@@ -175,8 +199,9 @@ public class TestFlatStyleableInfo
 			"disabledForeground", Color.class,
 
 			"buttonBackground", Color.class,
-			"buttonFocusedBackground", Color.class,
 			"buttonEditableBackground", Color.class,
+			"buttonFocusedBackground", Color.class,
+			"buttonFocusedEditableBackground", Color.class,
 			"buttonSeparatorWidth", float.class,
 			"buttonSeparatorColor", Color.class,
 			"buttonDisabledSeparatorColor", Color.class,
@@ -270,6 +295,7 @@ public class TestFlatStyleableInfo
 			"selectionForeground", Color.class,
 			"selectionInactiveBackground", Color.class,
 			"selectionInactiveForeground", Color.class,
+			"alternateRowColor", Color.class,
 			"selectionInsets", Insets.class,
 			"selectionArc", int.class,
 
@@ -390,6 +416,8 @@ public class TestFlatStyleableInfo
 
 	private void menuItem_checkIcon( Map<String, Class<?>> expected ) {
 		expectedMap( expected,
+			"icon.scale", float.class,
+
 			"icon.checkmarkColor", Color.class,
 			"icon.disabledCheckmarkColor", Color.class,
 			"selectionForeground", Color.class
@@ -398,6 +426,8 @@ public class TestFlatStyleableInfo
 
 	private void menuItem_arrowIcon( Map<String, Class<?>> expected ) {
 		expectedMap( expected,
+			"icon.scale", float.class,
+
 			"icon.arrowType", String.class,
 			"icon.arrowColor", Color.class,
 			"icon.disabledArrowColor", Color.class,
@@ -433,7 +463,8 @@ public class TestFlatStyleableInfo
 
 		expectedMap( expected,
 			// capsLockIcon
-			"capsLockIconColor", Color.class
+			"capsLockIconColor", Color.class,
+			"capsLockIconScale", float.class
 		);
 
 		// border
@@ -491,7 +522,20 @@ public class TestFlatStyleableInfo
 
 	@Test
 	void radioButton() {
-		JRadioButton c = new JRadioButton();
+		radioButton( new JRadioButton() );
+	}
+
+	@Test
+	void radioButton2() {
+		radioButton( new JRadioButton( new CustomIcon() ) );
+	}
+
+	@Test
+	void radioButton3() {
+		radioButton( new JRadioButton( new CustomRadioButtonIcon() ) );
+	}
+
+	private void radioButton( JRadioButton c ) {
 		FlatRadioButtonUI ui = (FlatRadioButtonUI) c.getUI();
 
 		assertTrue( ui.getDefaultIcon() instanceof FlatRadioButtonIcon );
@@ -503,6 +547,11 @@ public class TestFlatStyleableInfo
 			"icon.centerDiameter", float.class
 		);
 
+		// remove "icon." keys if radio button has custom icon
+		Icon icon = c.getIcon();
+		if( icon != null && !(icon instanceof FlatRadioButtonIcon) )
+			expected.keySet().removeIf( key -> key.startsWith( "icon." ) );
+
 		assertMapEquals( expected, ui.getStyleableInfos( c ) );
 	}
 
@@ -512,11 +561,15 @@ public class TestFlatStyleableInfo
 
 			//---- icon ----
 
+			"icon.scale", float.class,
+
 			"icon.focusWidth", float.class,
 			"icon.focusColor", Color.class,
 			"icon.borderWidth", float.class,
 			"icon.selectedBorderWidth", float.class,
 			"icon.disabledSelectedBorderWidth", float.class,
+			"icon.indeterminateBorderWidth", float.class,
+			"icon.disabledIndeterminateBorderWidth", float.class,
 			"icon.arc", int.class,
 
 			// enabled
@@ -525,6 +578,9 @@ public class TestFlatStyleableInfo
 			"icon.selectedBorderColor", Color.class,
 			"icon.selectedBackground", Color.class,
 			"icon.checkmarkColor", Color.class,
+			"icon.indeterminateBorderColor", Color.class,
+			"icon.indeterminateBackground", Color.class,
+			"icon.indeterminateCheckmarkColor", Color.class,
 
 			// disabled
 			"icon.disabledBorderColor", Color.class,
@@ -532,6 +588,9 @@ public class TestFlatStyleableInfo
 			"icon.disabledSelectedBorderColor", Color.class,
 			"icon.disabledSelectedBackground", Color.class,
 			"icon.disabledCheckmarkColor", Color.class,
+			"icon.disabledIndeterminateBorderColor", Color.class,
+			"icon.disabledIndeterminateBackground", Color.class,
+			"icon.disabledIndeterminateCheckmarkColor", Color.class,
 
 			// focused
 			"icon.focusedBorderColor", Color.class,
@@ -539,6 +598,9 @@ public class TestFlatStyleableInfo
 			"icon.focusedSelectedBorderColor", Color.class,
 			"icon.focusedSelectedBackground", Color.class,
 			"icon.focusedCheckmarkColor", Color.class,
+			"icon.focusedIndeterminateBorderColor", Color.class,
+			"icon.focusedIndeterminateBackground", Color.class,
+			"icon.focusedIndeterminateCheckmarkColor", Color.class,
 
 			// hover
 			"icon.hoverBorderColor", Color.class,
@@ -546,13 +608,19 @@ public class TestFlatStyleableInfo
 			"icon.hoverSelectedBorderColor", Color.class,
 			"icon.hoverSelectedBackground", Color.class,
 			"icon.hoverCheckmarkColor", Color.class,
+			"icon.hoverIndeterminateBorderColor", Color.class,
+			"icon.hoverIndeterminateBackground", Color.class,
+			"icon.hoverIndeterminateCheckmarkColor", Color.class,
 
 			// pressed
 			"icon.pressedBorderColor", Color.class,
 			"icon.pressedBackground", Color.class,
 			"icon.pressedSelectedBorderColor", Color.class,
 			"icon.pressedSelectedBackground", Color.class,
-			"icon.pressedCheckmarkColor", Color.class
+			"icon.pressedCheckmarkColor", Color.class,
+			"icon.pressedIndeterminateBorderColor", Color.class,
+			"icon.pressedIndeterminateBackground", Color.class,
+			"icon.pressedIndeterminateCheckmarkColor", Color.class
 		);
 	}
 
@@ -773,6 +841,7 @@ public class TestFlatStyleableInfo
 			"tabIconPlacement", int.class,
 
 			// FlatTabbedPaneCloseIcon
+			"closeScale", float.class,
 			"closeSize", Dimension.class,
 			"closeArc", int.class,
 			"closeCrossPlainSize", float.class,
@@ -965,9 +1034,11 @@ public class TestFlatStyleableInfo
 			"selectionInactiveBackground", Color.class,
 			"selectionInactiveForeground", Color.class,
 			"selectionBorderColor", Color.class,
+			"alternateRowColor", Color.class,
 			"selectionInsets", Insets.class,
 			"selectionArc", int.class,
 			"wideSelection", boolean.class,
+			"wideCellRenderer", boolean.class,
 			"showCellFocusIndicator", boolean.class,
 
 			"paintSelection", boolean.class,
@@ -1060,6 +1131,8 @@ public class TestFlatStyleableInfo
 			"error.focusedBorderColor", Color.class,
 			"warning.borderColor", Color.class,
 			"warning.focusedBorderColor", Color.class,
+			"success.borderColor", Color.class,
+			"success.focusedBorderColor", Color.class,
 			"custom.borderColor", Color.class,
 
 			"outline", String.class,
@@ -1090,6 +1163,16 @@ public class TestFlatStyleableInfo
 		assertMapEquals( expected, border.getStyleableInfos() );
 	}
 
+	@Test
+	void flatScrollPaneBorder() {
+		FlatScrollPaneBorder border = new FlatScrollPaneBorder();
+
+		Map<String, Class<?>> expected = new LinkedHashMap<>();
+		flatScrollPaneBorder( expected );
+
+		assertMapEquals( expected, border.getStyleableInfos() );
+	}
+
 	@Test
 	void flatTextBorder() {
 		FlatTextBorder border = new FlatTextBorder();
@@ -1110,6 +1193,64 @@ public class TestFlatStyleableInfo
 		assertMapEquals( expected, border.getStyleableInfos() );
 	}
 
+	@Test
+	void flatDropShadowBorder() {
+		FlatDropShadowBorder border = new FlatDropShadowBorder();
+
+		Map<String, Class<?>> expected = expectedMap(
+			"shadowColor", Color.class,
+			"shadowInsets", Insets.class,
+			"shadowOpacity", float.class
+		);
+
+		assertMapEquals( expected, border.getStyleableInfos() );
+	}
+
+	@Test
+	void flatMenuBarBorder() {
+		FlatMenuBarBorder border = new FlatMenuBarBorder();
+
+		Map<String, Class<?>> expected = expectedMap(
+			"borderColor", Color.class
+		);
+
+		assertMapEquals( expected, border.getStyleableInfos() );
+	}
+
+	@Test
+	void flatPopupMenuBorder() {
+		FlatPopupMenuBorder border = new FlatPopupMenuBorder();
+
+		Map<String, Class<?>> expected = expectedMap(
+			"borderInsets", Insets.class,
+			"borderColor", Color.class
+		);
+
+		assertMapEquals( expected, border.getStyleableInfos() );
+	}
+
+	@Test
+	void flatInternalFrameBorder() {
+		FlatInternalFrameBorder border = new FlatInternalFrameBorder();
+
+		Map<String, Class<?>> expected = expectedMap(
+			"activeBorderColor", Color.class,
+			"inactiveBorderColor", Color.class,
+			"borderLineWidth", int.class,
+			"dropShadowPainted", boolean.class,
+			"borderMargins", Insets.class,
+
+			"activeDropShadowColor", Color.class,
+			"activeDropShadowInsets", Insets.class,
+			"activeDropShadowOpacity", float.class,
+			"inactiveDropShadowColor", Color.class,
+			"inactiveDropShadowInsets", Insets.class,
+			"inactiveDropShadowOpacity", float.class
+		);
+
+		assertMapEquals( expected, border.getStyleableInfos() );
+	}
+
 	//---- icons --------------------------------------------------------------
 
 	@Test
@@ -1139,11 +1280,15 @@ public class TestFlatStyleableInfo
 
 	private void flatCheckBoxIcon( Map<String, Class<?>> expected ) {
 		expectedMap( expected,
+			"scale", float.class,
+
 			"focusWidth", float.class,
 			"focusColor", Color.class,
 			"borderWidth", float.class,
 			"selectedBorderWidth", float.class,
 			"disabledSelectedBorderWidth", float.class,
+			"indeterminateBorderWidth", float.class,
+			"disabledIndeterminateBorderWidth", float.class,
 			"arc", int.class,
 
 			// enabled
@@ -1152,6 +1297,9 @@ public class TestFlatStyleableInfo
 			"selectedBorderColor", Color.class,
 			"selectedBackground", Color.class,
 			"checkmarkColor", Color.class,
+			"indeterminateBorderColor", Color.class,
+			"indeterminateBackground", Color.class,
+			"indeterminateCheckmarkColor", Color.class,
 
 			// disabled
 			"disabledBorderColor", Color.class,
@@ -1159,6 +1307,9 @@ public class TestFlatStyleableInfo
 			"disabledSelectedBorderColor", Color.class,
 			"disabledSelectedBackground", Color.class,
 			"disabledCheckmarkColor", Color.class,
+			"disabledIndeterminateBorderColor", Color.class,
+			"disabledIndeterminateBackground", Color.class,
+			"disabledIndeterminateCheckmarkColor", Color.class,
 
 			// focused
 			"focusedBorderColor", Color.class,
@@ -1166,6 +1317,9 @@ public class TestFlatStyleableInfo
 			"focusedSelectedBorderColor", Color.class,
 			"focusedSelectedBackground", Color.class,
 			"focusedCheckmarkColor", Color.class,
+			"focusedIndeterminateBorderColor", Color.class,
+			"focusedIndeterminateBackground", Color.class,
+			"focusedIndeterminateCheckmarkColor", Color.class,
 
 			// hover
 			"hoverBorderColor", Color.class,
@@ -1173,13 +1327,19 @@ public class TestFlatStyleableInfo
 			"hoverSelectedBorderColor", Color.class,
 			"hoverSelectedBackground", Color.class,
 			"hoverCheckmarkColor", Color.class,
+			"hoverIndeterminateBorderColor", Color.class,
+			"hoverIndeterminateBackground", Color.class,
+			"hoverIndeterminateCheckmarkColor", Color.class,
 
 			// pressed
 			"pressedBorderColor", Color.class,
 			"pressedBackground", Color.class,
 			"pressedSelectedBorderColor", Color.class,
 			"pressedSelectedBackground", Color.class,
-			"pressedCheckmarkColor", Color.class
+			"pressedCheckmarkColor", Color.class,
+			"pressedIndeterminateBorderColor", Color.class,
+			"pressedIndeterminateBackground", Color.class,
+			"pressedIndeterminateCheckmarkColor", Color.class
 		);
 	}
 
@@ -1206,6 +1366,8 @@ public class TestFlatStyleableInfo
 
 	private void flatCheckBoxMenuItemIcon( Map<String, Class<?>> expected ) {
 		expectedMap( expected,
+			"scale", float.class,
+
 			"checkmarkColor", Color.class,
 			"disabledCheckmarkColor", Color.class,
 			"selectionForeground", Color.class
@@ -1224,6 +1386,8 @@ public class TestFlatStyleableInfo
 
 	private void flatMenuArrowIcon( Map<String, Class<?>> expected ) {
 		expectedMap( expected,
+			"scale", float.class,
+
 			"arrowType", String.class,
 			"arrowColor", Color.class,
 			"disabledArrowColor", Color.class,
@@ -1236,6 +1400,8 @@ public class TestFlatStyleableInfo
 		FlatHelpButtonIcon icon = new FlatHelpButtonIcon();
 
 		Map<String, Class<?>> expected = expectedMap(
+			"scale", float.class,
+
 			"focusWidth", int.class,
 			"focusColor", Color.class,
 			"innerFocusWidth", float.class,
@@ -1256,4 +1422,87 @@ public class TestFlatStyleableInfo
 
 		assertMapEquals( expected, icon.getStyleableInfos() );
 	}
+
+	@Test
+	void flatClearIcon() {
+		FlatClearIcon icon = new FlatClearIcon();
+
+		Map<String, Class<?>> expected = expectedMap(
+			"clearIconScale", float.class,
+
+			"clearIconColor", Color.class,
+			"clearIconHoverColor", Color.class,
+			"clearIconPressedColor", Color.class
+		);
+
+		assertMapEquals( expected, icon.getStyleableInfos() );
+	}
+
+	@Test
+	void flatSearchIcon() {
+		FlatSearchIcon icon = new FlatSearchIcon();
+
+		Map<String, Class<?>> expected = new LinkedHashMap<>();
+		flatSearchIcon( expected );
+
+		assertMapEquals( expected, icon.getStyleableInfos() );
+	}
+
+	@Test
+	void flatSearchWithHistoryIcon() {
+		FlatSearchWithHistoryIcon icon = new FlatSearchWithHistoryIcon();
+
+		Map<String, Class<?>> expected = new LinkedHashMap<>();
+		flatSearchIcon( expected );
+
+		assertMapEquals( expected, icon.getStyleableInfos() );
+	}
+
+	private void flatSearchIcon( Map<String, Class<?>> expected ) {
+		expectedMap( expected,
+			"searchIconScale", float.class,
+
+			"searchIconColor", Color.class,
+			"searchIconHoverColor", Color.class,
+			"searchIconPressedColor", Color.class
+		);
+	}
+
+	@Test
+	void flatCapsLockIcon() {
+		FlatCapsLockIcon icon = new FlatCapsLockIcon();
+
+		Map<String, Class<?>> expected = expectedMap(
+			"capsLockIconScale", float.class,
+
+			"capsLockIconColor", Color.class
+		);
+
+		assertMapEquals( expected, icon.getStyleableInfos() );
+	}
+
+	@Test
+	void flatTabbedPaneCloseIcon() {
+		FlatTabbedPaneCloseIcon icon = new FlatTabbedPaneCloseIcon();
+
+		Map<String, Class<?>> expected = expectedMap(
+			//TODO closeScale ?
+//			"scale", float.class,
+			"closeScale", float.class,
+
+			"closeSize", Dimension.class,
+			"closeArc", int.class,
+			"closeCrossPlainSize", float.class,
+			"closeCrossFilledSize", float.class,
+			"closeCrossLineWidth", float.class,
+			"closeBackground", Color.class,
+			"closeForeground", Color.class,
+			"closeHoverBackground", Color.class,
+			"closeHoverForeground", Color.class,
+			"closePressedBackground", Color.class,
+			"closePressedForeground", Color.class
+		);
+
+		assertMapEquals( expected, icon.getStyleableInfos() );
+	}
 }

flatlaf-core/src/test/java/com/formdev/flatlaf/ui/TestUtils.java

@@ -17,9 +17,15 @@
 package com.formdev.flatlaf.ui;
 
 import java.awt.Font;
+import java.lang.reflect.Method;
+import java.util.HashSet;
 import java.util.Map;
 import java.util.Objects;
+import java.util.Set;
+import java.util.TreeMap;
+import java.util.TreeSet;
 import javax.swing.UIManager;
+import org.junit.jupiter.api.Test;
 import org.opentest4j.AssertionFailedError;
 import com.formdev.flatlaf.FlatIntelliJLaf;
 import com.formdev.flatlaf.FlatLightLaf;
@@ -57,12 +63,57 @@ public class TestUtils
 
 	public static void assertMapEquals( Map<?, ?> expected, Map<?, ?> actual ) {
 		if( !Objects.equals( expected, actual ) ) {
-			String expectedStr = String.valueOf( expected ).replace( ", ", ",\n" );
-			String actualStr = String.valueOf( actual ).replace( ", ", ",\n" );
+			String expectedStr = String.valueOf( new TreeMap<>( expected ) ).replace( ", ", ",\n" );
+			String actualStr = String.valueOf( new TreeMap<>( actual ) ).replace( ", ", ",\n" );
 			String msg = String.format( "expected: <%s> but was: <%s>", expectedStr, actualStr );
 
 			// pass expected/actual strings to exception for nice diff in IDE
 			throw new AssertionFailedError( msg, expectedStr, actualStr );
 		}
 	}
+
+	public static void assertSetEquals( Set<?> expected, Set<?> actual, String message ) {
+		if( !Objects.equals( expected, actual ) ) {
+			String expectedStr = String.valueOf( new TreeSet<>( expected ) ).replace( ", ", ",\n" );
+			String actualStr = String.valueOf( new TreeSet<>( actual ) ).replace( ", ", ",\n" );
+			String msg = String.format( "expected: <%s> but was: <%s>", expectedStr, actualStr );
+			if( message != null )
+				msg = message + " ==> " + msg;
+
+			// pass expected/actual strings to exception for nice diff in IDE
+			throw new AssertionFailedError( msg, expectedStr, actualStr );
+		}
+	}
+
+	public static void checkImplementedTests( Set<String> excludes, Class<?> baseClass, Class<?>... classes ) {
+		Set<String> expected = getTestMethods( baseClass );
+
+		for( Class<?> cls : classes ) {
+			Set<String> actual = getTestMethods( cls );
+
+			for( String methodName : expected ) {
+				if( !actual.contains( methodName ) && !excludes.contains( methodName ) ) {
+					throw new AssertionFailedError( "missing " + cls.getSimpleName() + '.' + methodName
+						+ "() for " + baseClass.getSimpleName() + '.' + methodName + "()" );
+				}
+			}
+
+			for( String methodName : actual ) {
+				if( !expected.contains( methodName ) && !excludes.contains( methodName ) ) {
+					throw new AssertionFailedError( "missing " + baseClass.getSimpleName() + '.' + methodName
+						+ "() for " + cls.getSimpleName() + '.' + methodName + "()" );
+				}
+			}
+		}
+	}
+
+	private static Set<String> getTestMethods( Class<?> cls ) {
+		HashSet<String> tests = new HashSet<>();
+		Method[] methods = cls.getDeclaredMethods();
+		for( Method m : methods ) {
+			if( m.isAnnotationPresent( Test.class ) )
+				tests.add( m.getName() );
+		}
+		return tests;
+	}
 }

flatlaf-core/src/test/java/com/formdev/flatlaf/util/TestUIScale.java

@@ -0,0 +1,343 @@
+/*
+ * Copyright 2025 FormDev Software GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.formdev.flatlaf.util;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import java.awt.Font;
+import java.util.Collections;
+import java.util.Map;
+import javax.swing.UIManager;
+import javax.swing.UnsupportedLookAndFeelException;
+import javax.swing.plaf.metal.MetalLookAndFeel;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+import com.formdev.flatlaf.FlatDarkLaf;
+import com.formdev.flatlaf.FlatLaf;
+import com.formdev.flatlaf.FlatLightLaf;
+import com.formdev.flatlaf.FlatSystemProperties;
+
+/**
+ * @author Karl Tauber
+ */
+public class TestUIScale
+{
+	private static Map<String, String> FONT_EXTRA_DEFAULTS_1x = Collections.singletonMap(
+		"defaultFont", "{instance}java.awt.Font,Dialog,0,12" );
+	private static Map<String, String> FONT_EXTRA_DEFAULTS_1_5x = Collections.singletonMap(
+		"defaultFont", "{instance}java.awt.Font,Dialog,0,18" );
+
+	@BeforeAll
+	static void setup() {
+		UIScale.inUnitTests = true;
+
+		// disable platform specific fonts
+		System.setProperty( "flatlaf.uiScale.fontSizeDivider", "12" );
+		FlatLaf.setGlobalExtraDefaults( FONT_EXTRA_DEFAULTS_1x );
+	}
+
+	@AfterAll
+	static void cleanup() throws UnsupportedLookAndFeelException {
+		System.clearProperty( "flatlaf.uiScale.fontSizeDivider" );
+		FlatLaf.setGlobalExtraDefaults( null );
+
+		UIScale.inUnitTests = false;
+	}
+
+	@AfterEach
+	void afterEach() throws UnsupportedLookAndFeelException {
+		UIManager.setLookAndFeel( new MetalLookAndFeel() );
+		UIManager.put( "defaultFont", null );
+		UIManager.put( "Label.font", null );
+		FlatLaf.setGlobalExtraDefaults( FONT_EXTRA_DEFAULTS_1x );
+
+		UIScale.tests_uninitialize();
+	}
+
+	@Test
+	void testCustomScaleFactor() {
+		System.setProperty( FlatSystemProperties.UI_SCALE, "1.25x" );
+		assertScaleFactor( 1.25f );
+
+		System.setProperty( FlatSystemProperties.UI_SCALE, "2x" );
+		UIScale.tests_uninitialize();
+		assertScaleFactor( 2f );
+
+		System.clearProperty( FlatSystemProperties.UI_SCALE );
+	}
+
+	@Test
+	void testLabelFontScaling() {
+		assertInstanceOf( MetalLookAndFeel.class, UIManager.getLookAndFeel() );
+
+		testLabelFont(  8, 1f );
+		testLabelFont(  9, 1f );
+		testLabelFont( 10, 1f );
+		testLabelFont( 11, 1f );
+		testLabelFont( 12, 1f );
+		testLabelFont( 13, 1f );
+		testLabelFont( 14, 1.25f );
+		testLabelFont( 15, 1.25f );
+		testLabelFont( 16, 1.25f );
+		testLabelFont( 17, 1.5f );
+		testLabelFont( 18, 1.5f );
+		testLabelFont( 19, 1.5f );
+		testLabelFont( 20, 1.75f );
+		testLabelFont( 21, 1.75f );
+		testLabelFont( 22, 1.75f );
+		testLabelFont( 23, 2f );
+		testLabelFont( 24, 2f );
+		testLabelFont( 25, 2f );
+		testLabelFont( 26, 2.25f );
+	}
+
+	private void testLabelFont( int fontSize, float expectedScaleFactor ) {
+		UIManager.put( "Label.font", new Font( Font.DIALOG, Font.PLAIN, fontSize ) );
+		assertScaleFactor( expectedScaleFactor );
+	}
+
+	@Test
+	void testDefaultFontScaling() {
+		FlatLightLaf.setup();
+
+		testDefaultFont(  8, 1f );
+		testDefaultFont(  9, 1f );
+		testDefaultFont( 10, 1f );
+		testDefaultFont( 11, 1f );
+		testDefaultFont( 12, 1f );
+		testDefaultFont( 13, 1f );
+		testDefaultFont( 14, 1.25f );
+		testDefaultFont( 15, 1.25f );
+		testDefaultFont( 16, 1.25f );
+		testDefaultFont( 17, 1.5f );
+		testDefaultFont( 18, 1.5f );
+		testDefaultFont( 19, 1.5f );
+		testDefaultFont( 20, 1.75f );
+		testDefaultFont( 21, 1.75f );
+		testDefaultFont( 22, 1.75f );
+		testDefaultFont( 23, 2f );
+		testDefaultFont( 24, 2f );
+		testDefaultFont( 25, 2f );
+		testDefaultFont( 26, 2.25f );
+	}
+
+	private void testDefaultFont( int fontSize, float expectedScaleFactor ) {
+		UIManager.put( "defaultFont", new Font( Font.DIALOG, Font.PLAIN, fontSize ) );
+		assertScaleFactor( expectedScaleFactor );
+	}
+
+	@Test
+	void testInitialScaleFactorAndFontSizes() {
+		FlatLightLaf.setup();
+		assertScaleFactorAndFontSizes( 1f, 12, -1 );
+
+		FlatLaf.setGlobalExtraDefaults( FONT_EXTRA_DEFAULTS_1_5x );
+		FlatDarkLaf.setup();
+		assertScaleFactorAndFontSizes( 1.5f, 18, -1 );
+	}
+
+	@Test
+	void zoom_Metal() {
+		UIScale.setZoomFactor( 1.1f );
+		assertScaleFactor( 1.1f );
+
+		UIScale.setZoomFactor( 1.3f );
+		assertScaleFactor( 1.3f );
+
+		UIScale.setZoomFactor( 2.3f );
+		assertScaleFactor( 2.3f );
+	}
+
+	@Test
+	void zoom_1x() {
+		FlatLightLaf.setup();
+		testZoom( 0.7f,  0.7f,   8, -1 );
+		testZoom( 0.75f, 0.75f,  9, -1 );
+		testZoom( 0.8f,  0.8f,  10, -1 );
+		testZoom( 0.9f,  0.9f,  11, -1 );
+		testZoom( 1f,    1f,    12, -1 );
+		testZoom( 1.1f,  1.1f,  13, -1 );
+		testZoom( 1.2f,  1.2f,  14, -1 );
+		testZoom( 1.25f, 1.25f, 15, -1 );
+		testZoom( 1.3f,  1.3f,  16, -1 );
+		testZoom( 1.4f,  1.4f,  17, -1 );
+		testZoom( 1.5f,  1.5f,  18, -1 );
+		testZoom( 1.6f,  1.6f,  19, -1 );
+		testZoom( 1.7f,  1.7f,  20, -1 );
+		testZoom( 1.75f, 1.75f, 21, -1 );
+		testZoom( 1.8f,  1.8f,  22, -1 );
+		testZoom( 1.9f,  1.9f,  23, -1 );
+		testZoom( 2f,    2f,    24, -1 );
+		testZoom( 2.25f, 2.25f, 27, -1 );
+		testZoom( 2.5f,  2.5f,  30, -1 );
+		testZoom( 2.75f, 2.75f, 33, -1 );
+		testZoom( 3f,    3f,    36, -1 );
+		testZoom( 4f,    4f,    48, -1 );
+	}
+
+	@Test
+	void zoom_1_5x() {
+		FlatLaf.setGlobalExtraDefaults( FONT_EXTRA_DEFAULTS_1_5x );
+		FlatLightLaf.setup();
+
+		testZoom( 0.7f,  1.05f, 13, -1 );
+		testZoom( 0.75f, 1.13f, 14, -1 );
+		testZoom( 0.8f,  1.2f,  14, -1 );
+		testZoom( 0.9f,  1.35f, 16, -1 );
+		testZoom( 1f,    1.5f,  18, -1 );
+		testZoom( 1.1f,  1.65f, 20, -1 );
+		testZoom( 1.2f,  1.8f,  22, -1 );
+		testZoom( 1.25f, 1.88f, 23, -1 );
+		testZoom( 1.3f,  1.95f, 23, -1 );
+		testZoom( 1.4f,  2.1f,  25, -1 );
+		testZoom( 1.5f,  2.25f, 27, -1 );
+		testZoom( 1.6f,  2.4f,  29, -1 );
+		testZoom( 1.7f,  2.55f, 31, -1 );
+		testZoom( 1.75f, 2.63f, 32, -1 );
+		testZoom( 1.8f,  2.7f,  32, -1 );
+		testZoom( 1.9f,  2.85f, 34, -1 );
+		testZoom( 2f,    3f,    36, -1 );
+		testZoom( 2.25f, 3.38f, 41, -1 );
+		testZoom( 2.5f,  3.75f, 45, -1 );
+		testZoom( 2.75f, 4.13f, 50, -1 );
+		testZoom( 3f,    4.5f,  54, -1 );
+		testZoom( 4f,    6f,    72, -1 );
+	}
+
+	@Test
+	void zoomAppFont_1x() {
+		FlatLightLaf.setup();
+		UIManager.put( "defaultFont", new Font( Font.DIALOG, Font.PLAIN, 14 ) );
+
+		testZoom( 1f,    1.25f, 12, 14 );
+		testZoom( 1.1f,  1.38f, 13, 15 );
+		testZoom( 1.25f, 1.56f, 15, 17 );
+		testZoom( 1.5f,  1.88f, 18, 20 );
+		testZoom( 1.75f, 2.19f, 21, 23 );
+		testZoom( 2f,    2.5f,  24, 26 );
+		testZoom( 1f,    1.25f, 12, 13 );
+		testZoom( 2f,    2.5f,  24, 26 );
+	}
+
+	@Test
+	void zoomWithLafChange() {
+		FlatLightLaf.setup();
+		assertScaleFactorAndFontSizes( 1f, 12, -1 );
+		testZoom( 1.1f,  1.1f,  13, -1 );
+
+		FlatDarkLaf.setup();
+		assertScaleFactorAndFontSizes( 1.1f, 13, -1 );
+		testZoom( 1.2f,  1.2f,  14, -1 );
+
+		FlatLightLaf.setup();
+		assertScaleFactorAndFontSizes( 1.2f, 14, -1 );
+		testZoom( 1.3f,  1.3f,  16, -1 );
+
+		FlatLaf.setGlobalExtraDefaults( FONT_EXTRA_DEFAULTS_1_5x );
+		FlatDarkLaf.setup();
+		assertScaleFactorAndFontSizes( 1.95f, 23, -1 );
+		testZoom( 1.4f,  2.1f,  25, -1 );
+
+		FlatLightLaf.setup();
+		assertScaleFactorAndFontSizes( 2.1f, 25, -1 );
+		testZoom( 1.5f,  2.25f,  27, -1 );
+	}
+
+	@Test
+	void zoomWithDefaultFontChange() {
+		FlatLightLaf.setup();
+		assertScaleFactorAndFontSizes( 1f, 12, -1 );
+
+		float zoom1 = 1.4f;
+		testZoom( zoom1,  zoom1,  17, -1 );
+		testDefaultFont(  8, z( zoom1, 1f ) );
+		testDefaultFont(  9, z( zoom1, 1f ) );
+		testDefaultFont( 10, z( zoom1, 1f ) );
+		testDefaultFont( 11, z( zoom1, 1f ) );
+		testDefaultFont( 12, z( zoom1, 1f ) );
+		testDefaultFont( 13, z( zoom1, 1f ) );
+		testDefaultFont( 14, z( zoom1, 1.25f ) );
+		testDefaultFont( 15, z( zoom1, 1.25f ) );
+		testDefaultFont( 16, z( zoom1, 1.25f ) );
+		testDefaultFont( 17, z( zoom1, 1.5f ) );
+		testDefaultFont( 18, z( zoom1, 1.5f ) );
+		testDefaultFont( 19, z( zoom1, 1.5f ) );
+		testDefaultFont( 20, z( zoom1, 1.75f ) );
+		testDefaultFont( 21, z( zoom1, 1.75f ) );
+		testDefaultFont( 22, z( zoom1, 1.75f ) );
+		testDefaultFont( 23, z( zoom1, 2f ) );
+		testDefaultFont( 24, z( zoom1, 2f ) );
+		testDefaultFont( 25, z( zoom1, 2f ) );
+		testDefaultFont( 26, z( zoom1, 2.25f ) );
+
+		float zoom2 = 1.8f;
+		testZoom( zoom2,  4.05f,  22, 33 );
+		testDefaultFont(  8, z( zoom2, 1f ) );
+		testDefaultFont(  9, z( zoom2, 1f ) );
+		testDefaultFont( 10, z( zoom2, 1f ) );
+		testDefaultFont( 11, z( zoom2, 1f ) );
+		testDefaultFont( 12, z( zoom2, 1f ) );
+		testDefaultFont( 13, z( zoom2, 1f ) );
+		testDefaultFont( 14, z( zoom2, 1.25f ) );
+		testDefaultFont( 15, z( zoom2, 1.25f ) );
+		testDefaultFont( 16, z( zoom2, 1.25f ) );
+		testDefaultFont( 17, z( zoom2, 1.5f ) );
+		testDefaultFont( 18, z( zoom2, 1.5f ) );
+		testDefaultFont( 19, z( zoom2, 1.5f ) );
+		testDefaultFont( 20, z( zoom2, 1.75f ) );
+		testDefaultFont( 21, z( zoom2, 1.75f ) );
+		testDefaultFont( 22, z( zoom2, 1.75f ) );
+		testDefaultFont( 23, z( zoom2, 2f ) );
+		testDefaultFont( 24, z( zoom2, 2f ) );
+		testDefaultFont( 25, z( zoom2, 2f ) );
+		testDefaultFont( 26, z( zoom2, 2.25f ) );
+	}
+
+	private static float z( float zoom, float scale ) {
+		// round scale factor to 1/100
+		return Math.round( (zoom * scale) * 100f ) / 100f;
+	}
+
+	private static void testZoom( float zoomFactor, float expectedScaleFactor,
+		int expectedLafFontSize, int expectedAppFontSize )
+	{
+		UIScale.setZoomFactor( zoomFactor );
+		assertScaleFactorAndFontSizes( expectedScaleFactor, expectedLafFontSize, expectedAppFontSize );
+	}
+
+	private static void assertScaleFactorAndFontSizes( float expectedScaleFactor,
+		int expectedLafFontSize, int expectedAppFontSize )
+	{
+		assertScaleFactor( expectedScaleFactor );
+
+		Font lafFont = UIManager.getLookAndFeelDefaults().getFont( "defaultFont" );
+		Font appFont = UIManager.getFont( "defaultFont" );
+		assertEquals( expectedLafFontSize, lafFont.getSize() );
+		if( expectedAppFontSize > 0 ) {
+			assertNotEquals( lafFont, appFont );
+			assertEquals( expectedAppFontSize, appFont.getSize() );
+		} else
+			assertEquals( lafFont, appFont );
+	}
+
+	private static void assertScaleFactor( float expectedScaleFactor ) {
+		assertEquals( expectedScaleFactor, UIScale.getUserScaleFactor() );
+	}
+}

flatlaf-demo/.settings/org.eclipse.jdt.core.prefs

@@ -1,4 +1,7 @@
 eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.source=1.8
 org.eclipse.jdt.core.formatter.align_assignment_statements_on_columns=false
 org.eclipse.jdt.core.formatter.align_fields_grouping_blank_lines=2147483647
 org.eclipse.jdt.core.formatter.align_type_members_on_columns=false

flatlaf-demo/build.gradle.kts

@@ -43,12 +43,13 @@ tasks {
 		dependsOn( ":flatlaf-intellij-themes:jar" )
 //		dependsOn( ":flatlaf-natives-jna:jar" )
 
-		manifest {
-			attributes( "Main-Class" to "com.formdev.flatlaf.demo.FlatLafDemo" )
+		manifest.attributes(
+			"Main-Class" to "com.formdev.flatlaf.demo.FlatLafDemo",
+			"Multi-Release" to "true",
 
-			if( JavaVersion.current() >= JavaVersion.VERSION_1_9 )
-				attributes( "Multi-Release" to "true" )
-		}
+			// allow loading FlatLaf native library in Java 24+ (see https://openjdk.org/jeps/472)
+			"Enable-Native-Access" to "ALL-UNNAMED",
+		)
 
 		exclude( "module-info.class" )
 		exclude( "META-INF/versions/*/module-info.class" )