release 2.5

~~~java
JButton button = new JButton();
int arc = FlatLaf.getStyleableValue( button, "arc" );
Color borderColor = FlatLaf.getStyleableValue( button, "borderColor" );
~~~

.github/workflows/ci.yml

@@ -28,13 +28,13 @@ jobs:
           - 17  # LTS
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - uses: gradle/wrapper-validation-action@v1
         if: matrix.java == '8'
 
       - name: Setup Java ${{ matrix.java }}
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@v3
         with:
           java-version: ${{ matrix.java }}
           distribution: adopt  # Java 8 and 11 are pre-installed on ubuntu-latest
@@ -44,7 +44,7 @@ jobs:
         run: ./gradlew build
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         if: matrix.java == '11'
         with:
           name: FlatLaf-build-artifacts
@@ -63,10 +63,10 @@ jobs:
       github.repository == 'JFormDesigner/FlatLaf'
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Setup Java 11
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@v3
         with:
           java-version: 11
           distribution: adopt  # pre-installed on ubuntu-latest
@@ -99,10 +99,10 @@ jobs:
       github.repository == 'JFormDesigner/FlatLaf'
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Setup Java 11
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@v3
         with:
           java-version: 11
           distribution: adopt  # pre-installed on ubuntu-latest

.github/workflows/natives.yml

@@ -9,41 +9,48 @@ on:
         tags:
             - '[0-9]*'
         paths:
-            - 'flatlaf-natives/flatlaf-natives-windows/**'
+            - 'flatlaf-natives/**'
             - '.github/workflows/natives.yml'
             - 'gradle/wrapper/gradle-wrapper.properties'
     pull_request:
         branches:
             - '*'
         paths:
-            - 'flatlaf-natives/flatlaf-natives-windows/**'
+            - 'flatlaf-natives/**'
             - '.github/workflows/natives.yml'
             - 'gradle/wrapper/gradle-wrapper.properties'
 
 jobs:
-    Windows:
-        runs-on: windows-latest
+    Natives:
+        strategy:
+            matrix:
+                os:
+                    - windows
+                    - ubuntu
+
+        runs-on: ${{ matrix.os }}-latest
 
         steps:
-            - uses: actions/checkout@v2
+            - uses: actions/checkout@v3
 
             - uses: gradle/wrapper-validation-action@v1
 
             - name: Setup Java 11
-              uses: actions/setup-java@v2
+              uses: actions/setup-java@v3
               with:
                   java-version: 11
                   distribution: adopt
                   cache: gradle
 
             - name: Build with Gradle
-              # --no-daemon is necessary on Windows otherwise caching Gradle would fail with: 
+              # --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 :flatlaf-natives-windows:build --no-daemon
+              run: ./gradlew build-natives --no-daemon
 
             - name: Upload artifacts
-              uses: actions/upload-artifact@v2
+              uses: actions/upload-artifact@v3
               with:
-                  name: FlatLaf-natives-windows-build-artifacts
+                  name: FlatLaf-natives-build-artifacts-${{ matrix.os }}
                   path: |
-                      flatlaf-natives/flatlaf-natives-windows/build
+                      flatlaf-core/src/main/resources/com/formdev/flatlaf/natives
+                      flatlaf-natives/flatlaf-natives-*/build

CHANGELOG.md

@@ -1,6 +1,138 @@
 FlatLaf Change Log
 ==================
 
+## 2.5
+
+#### New features and improvements
+
+- Linux: Use X11 window manager events to move window and to show window menu
+  (right-click on window title bar), if custom window decorations are enabled.
+  This gives FlatLaf windows a more "native" feeling. (issue #482)
+- MenuBar: Support different menu selection style UI defaults for `MenuBar` and
+  `MenuItem`. (issue #587)
+- MenuBar: Top level menus now use `MenuBar.font` instead of `Menu.font`. (issue
+  #589)
+- PasswordField: Reveal button is now hidden (and turned off) if password field
+  is disabled. (issue #501)
+- TabbedPane: New option to disable tab run rotation in wrap layout. Set UI
+  value `TabbedPane.rotateTabRuns` to `false`. (issue #574)
+- Window decorations:
+  - Added client property to mark components in embedded menu bar as "caption"
+    (allow moving window). (issue #569)
+  - Option to show window icon only in frames, but not in dialogs. Set UI value
+    `TitlePane.showIconInDialogs` to `false`. (issue #589)
+  - Added UI value `TitlePane.font` to customize window title font. (issue #589)
+- Added system property `flatlaf.updateUIOnSystemFontChange` to allow disabling
+  automatic UI update when system font changes. (issue #580)
+
+#### Fixed bugs
+
+- Fixed missing UI value `MenuItem.acceleratorDelimiter` on macOS. (was `null`,
+  is now an empty string)
+- Fixed possible exception in `FlatUIUtils.resetRenderingHints()`. (issue #575)
+- Fixed AWT components on macOS, which use Swing components internally. (issue
+  #583)
+- SwingX: Fixed missing highlighting of "today" in `JXMonthView` and
+  `JXDatePicker`.
+
+
+## 2.4
+
+#### New features and improvements
+
+- Native window decorations (Windows 10/11 only):
+  - There is now a small area at top of the embedded menu bar to resize the
+    window.
+  - Improved window title bar layout for small window widths:
+    - Width of iconify/maximize/close buttons is reduced (if necessary) to give
+      more space to embedded menu bar and title.
+    - Window title now has a minimum width to always allow moving window
+      (click-and-drag on window title). Instead, embedded menu bar is made
+      smaller.
+    - Option to show window icon beside window title, if menu bar is embedded or
+      title is centered. Set UI value `TitlePane.showIconBesideTitle` to `true`.
+  - No longer reduce height of window title bar if it has an embedded menu bar
+    and is maximized.
+
+#### Fixed bugs
+
+- ComboBox: Fixed vertical alignment of text in popup list with text in combo
+  box in IntelliJ/Darcula themes.
+- Menus: Fixed application freeze under very special conditions (invoking
+  `FlatLaf.initialize()` twice in NetBeans GUI builder) and using menu that has
+  submenus. See
+  [NetBeans issue #4231](https://github.com/apache/netbeans/issues/4231#issuecomment-1179611682)
+  for details.
+- MenuItem: Fixed sometimes wrapped HTML text on HiDPI screens on Windows.
+- TableHeader: Fixed exception when changing table structure (e.g. removing
+  column) from a table header popup menu action. (issue #532)
+- `HiDPIUtils.paintAtScale1x()` now supports rotated graphics. (issue #557)
+- Typography: No longer use `Consolas` or `Courier New` as monospaced font on
+  Windows because they have bad vertically placement.
+- Native window decorations (Windows 10/11 only):
+  - Do not center window title if embedded menu bar is empty or has no menus at
+    left side, but some components at right side. (issue #558)
+  - Do not use window decorations if system property `sun.java2d.opengl` is
+    `true` on Windows 10. (issue #540)
+  - Fixed missing top window border in dark themes if window drop shadows are
+    disabled in system settings. (issue #554; Windows 10 only)
+  - Right-to-left component orientation of title bar was lost when switching
+    theme.
+
+
+## 2.3
+
+#### New features and improvements
+
+- FileChooser: Added (optional) shortcuts panel. On Windows it contains "Recent
+  Items", "Desktop", "Documents", "This PC" and "Network". On macOS and Linux it
+  is empty/hidden. (issue #100)
+- Button and ToggleButton: Added missing foreground colors for hover, pressed,
+  focused and selected states. (issue #535)
+- Table: Optionally paint alternating rows below table if table is smaller than
+  scroll pane. Set UI value `Table.paintOutsideAlternateRows` to `true`.
+  Requires that `Table.alternateRowColor` is set to a color. (issue #504)
+- ToggleButton: Made the underline placement of tab-style toggle buttons
+  configurable. (PR #530; issue #529)
+- Added spanish translation. (PR #525)
+
+#### Fixed bugs
+
+- IntelliJ Themes: Fixed `TitledBorder` text color in "Monokai Pro" theme.
+  (issue #524)
+
+
+## 2.2
+
+#### New features and improvements
+
+- SplitPane: Allow limiting one-touch expanding to a single side (set client
+  property `JSplitPane.expandableSide` to `"left"` or `"right"`). (issue #355)
+- TabbedPane: Selected tab underline color now changes depending on whether the
+  focus is within the tab content. (issue #398)
+- IntelliJ Themes:
+  - Added "Monokai Pro" and "Xcode-Dark" themes.
+  - TabbedPane now use different background color for selected tabs in all "Arc"
+    themes, in "Hiberbee Dark" and in all "Material UI Lite" themes.
+
+#### Fixed bugs
+
+- Native window decorations (Windows 10/11 only): Fixed wrong window title
+  character encoding used in Windows taskbar. (issue #502)
+- Button: Fixed icon layout and preferred width of default buttons that use bold
+  font. (issue #506)
+- FileChooser: Enabled full row selection for details view to fix alternate row
+  coloring. (issue #512)
+- SplitPane: Fixed `StackOverflowError` caused by layout loop that may occur
+  under special circumstances. (issue #513)
+- Table: Slightly changed grid colors to make grid better recognizable. (issue
+  #514)
+- ToolBar: Fixed endless loop in focus navigation that may occur under special
+  circumstances. (issue #505)
+- IntelliJ Themes: `Component.accentColor` UI property now has useful theme
+  specific values. (issue #507)
+
+
 ## 2.1
 
 #### New features and improvements
@@ -110,7 +242,7 @@ FlatLaf Change Log
   - Possibility to hide window title bar icon (for single window set client
     property `JRootPane.titleBarShowIcon` to `false`; for all windows set UI
     value `TitlePane.showIcon` to `false`).
-  - OptionPane: Hide window title bar icon by default. Can be be made visibly by
+  - OptionPane: Hide window title bar icon by default. Can be made visibly by
     setting UI default `OptionPane.showIcon` to `true`. (issue #416)
   - No longer show the Java "duke/cup" icon if no window icon image is set.
     (issue #416)

build.gradle.kts

@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-val releaseVersion = "2.1"
-val developmentVersion = "2.2-SNAPSHOT"
+val releaseVersion = "2.5"
+val developmentVersion = "3.0-SNAPSHOT"
 
 version = if( java.lang.Boolean.getBoolean( "release" ) ) releaseVersion else developmentVersion
 

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

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2022 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.
+ */
+
+plugins {
+	`cpp-library`
+}
+
+library {
+	// disable debuggable for release builds to make shared libraries smaller
+	binaries.configureEach( CppSharedLibrary::class ) {
+		with( compileTask.get() ) {
+			if( name.contains( "Release" ) )
+				isDebuggable = false
+		}
+		with( linkTask.get() ) {
+			if( name.contains( "Release" ) )
+				debuggable.set( false )
+		}
+	}
+}
+
+tasks {
+	withType<CppCompile>().configureEach {
+		doFirst {
+			println( "Used Tool Chain:" )
+			println( "  - ${toolChain.get()}" )
+			println( "Available Tool Chains:" )
+			toolChains.forEach {
+				println( "  - $it" )
+			}
+		}
+	}
+}

buildSrc/src/main/kotlin/flatlaf-jni-headers.gradle.kts

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2022 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.
+ */
+
+open class JniHeadersExtension {
+	var headers: List<String> = emptyList()
+}
+
+val extension = project.extensions.create<JniHeadersExtension>( "flatlafJniHeaders" )
+
+
+tasks {
+	register<Copy>( "jni-headers" ) {
+		// depend on :flatlaf-core:compileJava because it generates the JNI headers
+		dependsOn( ":flatlaf-core:compileJava" )
+
+		from( project( ":flatlaf-core" ).buildDir.resolve( "generated/jni-headers" ) )
+		into( "src/main/headers" )
+		include( extension.headers )
+		filter<org.apache.tools.ant.filters.FixCrLfFilter>(
+			"eol" to org.apache.tools.ant.filters.FixCrLfFilter.CrLf.newInstance( "lf" )
+		)
+	}
+}

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

@@ -61,8 +61,6 @@ if( JavaVersion.current() >= JavaVersion.VERSION_1_9 ) {
 		}
 
 		jar {
-			manifest.attributes( "Multi-Release" to "true" )
-
 			from( sourceSets["module-info"].output ) {
 				include( "module-info.class" )
 			}

flatlaf-core/build.gradle.kts

@@ -29,7 +29,7 @@ dependencies {
 	testRuntimeOnly( "org.junit.jupiter:junit-jupiter-engine" )
 
 	// https://github.com/jtulach/netbeans-apitest
-	sigtest( "org.netbeans.tools:sigtest-maven-plugin:1.4" )
+	sigtest( "org.netbeans.tools:sigtest-maven-plugin:1.7" )
 }
 
 java {
@@ -43,11 +43,6 @@ tasks {
 		options.headerOutputDirectory.set( buildDir.resolve( "generated/jni-headers" ) )
 	}
 
-	processResources {
-		// build native libraries
-		dependsOn( ":flatlaf-natives-windows:assemble" )
-	}
-
 	jar {
 		archiveBaseName.set( "flatlaf" )
 
@@ -71,6 +66,9 @@ tasks {
 	test {
 		useJUnitPlatform()
 		testLogging.exceptionFormat = org.gradle.api.tasks.testing.logging.TestExceptionFormat.FULL
+
+		if( JavaVersion.current() >= JavaVersion.VERSION_1_9 )
+			jvmArgs( listOf( "--add-opens", "java.desktop/javax.swing.plaf.basic=ALL-UNNAMED" ) )
 	}
 
 	register( "sigtestGenerate" ) {

flatlaf-core/flatlaf-core-sigtest.txt

@@ -1,5 +1,5 @@
 #Signature file v4.1
-#Version 2.0
+#Version 2.4
 
 CLSS public abstract interface com.formdev.flatlaf.FlatClientProperties
 fld public final static java.lang.String BUTTON_TYPE = "JButton.buttonType"
@@ -30,6 +30,9 @@ 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 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"
 fld public final static java.lang.String SQUARE_SIZE = "JButton.squareSize"
 fld public final static java.lang.String STYLE = "FlatLaf.style"
 fld public final static java.lang.String STYLE_CLASS = "FlatLaf.styleClass"
@@ -72,6 +75,7 @@ fld public final static java.lang.String TABBED_PANE_TRAILING_COMPONENT = "JTabb
 fld public final static java.lang.String TAB_BUTTON_SELECTED_BACKGROUND = "JToggleButton.tab.selectedBackground"
 fld public final static java.lang.String TAB_BUTTON_UNDERLINE_COLOR = "JToggleButton.tab.underlineColor"
 fld public final static java.lang.String TAB_BUTTON_UNDERLINE_HEIGHT = "JToggleButton.tab.underlineHeight"
+fld public final static java.lang.String TAB_BUTTON_UNDERLINE_PLACEMENT = "JToggleButton.tab.underlinePlacement"
 fld public final static java.lang.String TEXT_FIELD_CLEAR_CALLBACK = "JTextField.clearCallback"
 fld public final static java.lang.String TEXT_FIELD_LEADING_COMPONENT = "JTextField.leadingComponent"
 fld public final static java.lang.String TEXT_FIELD_LEADING_ICON = "JTextField.leadingIcon"
@@ -216,7 +220,7 @@ 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,uiDefaultsGetters,updateUIPending
+hfds DESKTOPFONTHINTS,aquaLoaded,customDefaultsSources,desktopPropertyListener,desktopPropertyName,desktopPropertyName2,extraDefaults,globalExtraDefaults,mnemonicHandler,oldPopupFactory,postInitialization,subMenuUsabilityHelperInstalled,uiDefaultsGetters,updateUIPending
 hcls ActiveFont,FlatUIDefaults,ImageIconUIResource
 
 CLSS public abstract interface static com.formdev.flatlaf.FlatLaf$DisabledIconProvider
@@ -662,6 +666,7 @@ CLSS public com.formdev.flatlaf.util.SystemInfo
 cons public init()
 fld public final static boolean isAARCH64
 fld public final static boolean isJava_11_orLater
+fld public final static boolean isJava_12_orLater
 fld public final static boolean isJava_15_orLater
 fld public final static boolean isJava_17_orLater
 fld public final static boolean isJava_18_orLater
@@ -670,6 +675,7 @@ fld public final static boolean isJetBrainsJVM
 fld public final static boolean isJetBrainsJVM_11_orLater
 fld public final static boolean isKDE
 fld public final static boolean isLinux
+fld public final static boolean isMacFullWindowContentSupported
 fld public final static boolean isMacOS
 fld public final static boolean isMacOS_10_11_ElCapitan_orLater
 fld public final static boolean isMacOS_10_14_Mojave_orLater

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

@@ -253,6 +253,19 @@ public interface FlatClientProperties
 	 */
 	String COMPONENT_FOCUS_OWNER = "JComponent.focusOwner";
 
+	/**
+	 * Specifies whether a component in an embedded menu bar should behave as caption
+	 * (left-click allows moving window, right-click shows window system menu).
+	 * The component does not receive mouse pressed/released/clicked/dragged events,
+	 * but it gets mouse entered/exited/moved events.
+	 * <p>
+	 * <strong>Component</strong> {@link javax.swing.JComponent}<br>
+	 * <strong>Value type</strong> {@link java.lang.Boolean}
+	 *
+	 * @since 2.5
+	 */
+	String COMPONENT_TITLE_BAR_CAPTION = "JComponent.titleBarCaption";
+
 	//---- Popup --------------------------------------------------------------
 
 	/**
@@ -391,6 +404,40 @@ public interface FlatClientProperties
 	 */
 	String SCROLL_PANE_SMOOTH_SCROLLING = "JScrollPane.smoothScrolling";
 
+	//---- JSplitPane ---------------------------------------------------------
+
+	/**
+	 * Specifies what side of the spilt pane is allowed to expand
+	 * via one-touch expanding arrow buttons.
+	 * Requires that one-touch expanding is enabled with
+	 * {@link javax.swing.JSplitPane#setOneTouchExpandable(boolean)}.
+	 * <p>
+	 * <strong>Component</strong> {@link javax.swing.JSplitPane}<br>
+	 * <strong>Value type</strong> {@link java.lang.String}<br>
+	 * <strong>Allowed Values</strong>
+	 *     {@link #SPLIT_PANE_EXPANDABLE_SIDE_LEFT} or
+	 *     {@link #SPLIT_PANE_EXPANDABLE_SIDE_RIGHT}
+	 *
+	 * @since 2.2
+	 */
+	String SPLIT_PANE_EXPANDABLE_SIDE = "JSplitPane.expandableSide";
+
+	/**
+	 * Allow expanding only left/top side of the split pane.
+	 *
+	 * @see #SPLIT_PANE_EXPANDABLE_SIDE
+	 * @since 2.2
+	 */
+	String SPLIT_PANE_EXPANDABLE_SIDE_LEFT = "left";
+
+	/**
+	 * Allow expanding only right/bottom side of the split pane.
+	 *
+	 * @see #SPLIT_PANE_EXPANDABLE_SIDE
+	 * @since 2.2
+	 */
+	String SPLIT_PANE_EXPANDABLE_SIDE_RIGHT = "right";
+
 	//---- JTabbedPane --------------------------------------------------------
 
 	/**
@@ -958,7 +1005,22 @@ public interface FlatClientProperties
 	//---- JToggleButton ------------------------------------------------------
 
 	/**
-	 * Height of underline if toggle button type is {@link #BUTTON_TYPE_TAB}.
+	 * Placement of underline if toggle button type is {@link #BUTTON_TYPE_TAB}
+	 * <p>
+	 * <strong>Component</strong> {@link javax.swing.JToggleButton}<br>
+	 * <strong>Value type</strong> {@link java.lang.Integer}<br>
+	 * <strong>SupportedValues:</strong>
+	 *     {@link SwingConstants#BOTTOM} (default)
+	 *     {@link SwingConstants#TOP},
+	 *     {@link SwingConstants#LEFT} or
+	 *     {@link SwingConstants#RIGHT}
+	 *
+	 * @since 2.3
+	 */
+	String TAB_BUTTON_UNDERLINE_PLACEMENT = "JToggleButton.tab.underlinePlacement";
+
+	/**
+	 * Thickness of underline if toggle button type is {@link #BUTTON_TYPE_TAB}.
 	 * <p>
 	 * <strong>Component</strong> {@link javax.swing.JToggleButton}<br>
 	 * <strong>Value type</strong> {@link java.lang.Integer}

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

@@ -34,6 +34,8 @@ public class FlatDarculaLaf
 	/**
 	 * Sets the application look and feel to this LaF
 	 * using {@link UIManager#setLookAndFeel(javax.swing.LookAndFeel)}.
+	 *
+	 * @since 1.2
 	 */
 	public static boolean setup() {
 		return setup( new FlatDarculaLaf() );

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

@@ -33,6 +33,8 @@ public class FlatDarkLaf
 	/**
 	 * Sets the application look and feel to this LaF
 	 * using {@link UIManager#setLookAndFeel(javax.swing.LookAndFeel)}.
+	 *
+	 * @since 1.2
 	 */
 	public static boolean setup() {
 		return setup( new FlatDarkLaf() );

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

@@ -34,6 +34,8 @@ public class FlatIntelliJLaf
 	/**
 	 * Sets the application look and feel to this LaF
 	 * using {@link UIManager#setLookAndFeel(javax.swing.LookAndFeel)}.
+	 *
+	 * @since 1.2
 	 */
 	public static boolean setup() {
 		return setup( new FlatIntelliJLaf() );

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

@@ -30,6 +30,9 @@ import java.awt.image.ImageProducer;
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
 import java.io.File;
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodType;
 import java.lang.reflect.Method;
 import java.net.URL;
 import java.util.ArrayList;
@@ -63,6 +66,7 @@ import javax.swing.UIDefaults.LazyValue;
 import javax.swing.UIManager;
 import javax.swing.UnsupportedLookAndFeelException;
 import javax.swing.plaf.ColorUIResource;
+import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.FontUIResource;
 import javax.swing.plaf.IconUIResource;
 import javax.swing.plaf.UIResource;
@@ -73,6 +77,7 @@ import com.formdev.flatlaf.ui.FlatNativeWindowBorder;
 import com.formdev.flatlaf.ui.FlatPopupFactory;
 import com.formdev.flatlaf.ui.FlatRootPaneUI;
 import com.formdev.flatlaf.ui.FlatUIUtils;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableUI;
 import com.formdev.flatlaf.util.GrayFilter;
 import com.formdev.flatlaf.util.LoggingFacade;
 import com.formdev.flatlaf.util.MultiResolutionImageSupport;
@@ -103,7 +108,7 @@ public abstract class FlatLaf
 
 	private PopupFactory oldPopupFactory;
 	private MnemonicHandler mnemonicHandler;
-	private SubMenuUsabilityHelper subMenuUsabilityHelper;
+	private boolean subMenuUsabilityHelperInstalled;
 
 	private Consumer<UIDefaults> postInitialization;
 	private List<Function<Object, Object>> uiDefaultsGetters;
@@ -111,6 +116,8 @@ public abstract class FlatLaf
 	/**
 	 * Sets the application look and feel to the given LaF
 	 * using {@link UIManager#setLookAndFeel(javax.swing.LookAndFeel)}.
+	 *
+	 * @since 1.2
 	 */
 	public static boolean setup( LookAndFeel newLookAndFeel ) {
 		try {
@@ -232,6 +239,15 @@ public abstract class FlatLaf
 
 	@Override
 	public void initialize() {
+		// do not initialize if this is not the current look and feel
+		//    This is only necessary for special Laf usage. E.g. in GUI builders,
+		//    which may use multiple Lafs and may invoke this method directly.
+		//    This avoids that listeners and factories are installed multiple times.
+		//    In case of the NetBeans GUI builder, which does not invoke uninitialize(),
+		//    this also avoids that listeners stay registered in the system.
+		if( UIManager.getLookAndFeel() != this )
+			return;
+
 		if( SystemInfo.isMacOS )
 			initializeAqua();
 
@@ -246,8 +262,7 @@ public abstract class FlatLaf
 		mnemonicHandler.install();
 
 		// install submenu usability helper
-		subMenuUsabilityHelper = new SubMenuUsabilityHelper();
-		subMenuUsabilityHelper.install();
+		subMenuUsabilityHelperInstalled = SubMenuUsabilityHelper.install();
 
 		// listen to desktop property changes to update UI if system font or scaling changes
 		if( SystemInfo.isWindows ) {
@@ -266,6 +281,9 @@ public abstract class FlatLaf
 		}
 		if( desktopPropertyName != null ) {
 			desktopPropertyListener = e -> {
+				if( !FlatSystemProperties.getBoolean( FlatSystemProperties.UPDATE_UI_ON_SYSTEM_FONT_CHANGE, true ) )
+					return;
+
 				String propertyName = e.getPropertyName();
 				if( desktopPropertyName.equals( propertyName ) || propertyName.equals( desktopPropertyName2 ) )
 					reSetLookAndFeel();
@@ -304,6 +322,10 @@ public abstract class FlatLaf
 
 	@Override
 	public void uninitialize() {
+		// do not uninitialize if this is not the current look and feel
+		if( UIManager.getLookAndFeel() != this )
+			return;
+
 		// remove desktop property listener
 		if( desktopPropertyListener != null ) {
 			Toolkit toolkit = Toolkit.getDefaultToolkit();
@@ -329,9 +351,9 @@ public abstract class FlatLaf
 		}
 
 		// uninstall submenu usability helper
-		if( subMenuUsabilityHelper != null ) {
-			subMenuUsabilityHelper.uninstall();
-			subMenuUsabilityHelper = null;
+		if( subMenuUsabilityHelperInstalled ) {
+			SubMenuUsabilityHelper.uninstall();
+			subMenuUsabilityHelperInstalled = false;
 		}
 
 		// restore default link color
@@ -559,6 +581,7 @@ public abstract class FlatLaf
 
 		// add fonts that are not set in BasicLookAndFeel
 		defaults.put( "RootPane.font", activeFont );
+		defaults.put( "TitlePane.font", activeFont );
 	}
 
 	private void initDefaultFont( UIDefaults defaults ) {
@@ -1213,6 +1236,62 @@ public abstract class FlatLaf
 	 */
 	public static final Object NULL_VALUE = new Object();
 
+	/**
+	 * Returns information about styleable values of a component.
+	 * <p>
+	 * This is equivalent to: {@code ((StyleableUI)c.getUI()).getStyleableInfos(c)}
+	 *
+	 * @since 2.5
+	 */
+	public static Map<String, Class<?>> getStyleableInfos( JComponent c ) {
+		StyleableUI ui = getStyleableUI( c );
+		return (ui != null) ? ui.getStyleableInfos( c ) : null;
+	}
+
+	/**
+	 * Returns the (styled) value for the given key from the given component.
+	 * <p>
+	 * This is equivalent to: {@code ((StyleableUI)c.getUI()).getStyleableValue(c, key)}
+	 *
+	 * @since 2.5
+	 */
+	@SuppressWarnings( "unchecked" )
+	public static <T> T getStyleableValue( JComponent c, String key ) {
+		StyleableUI ui = getStyleableUI( c );
+		return (ui != null) ? (T) ui.getStyleableValue( c, key ) : null;
+	}
+
+	private static StyleableUI getStyleableUI( JComponent c ) {
+		if( !getUIMethodInitialized ) {
+			getUIMethodInitialized = true;
+
+			if( SystemInfo.isJava_9_orLater ) {
+				try {
+					// JComponent.getUI() is available since Java 9
+					getUIMethod = MethodHandles.lookup().findVirtual( JComponent.class, "getUI",
+						MethodType.methodType( ComponentUI.class ) );
+				} catch( Exception ex ) {
+					// ignore
+				}
+			}
+		}
+
+		try {
+			Object ui;
+			if( getUIMethod != null )
+				ui = getUIMethod.invoke( c );
+			else
+				ui = c.getClass().getMethod( "getUI" ).invoke( c );
+			return (ui instanceof StyleableUI) ? (StyleableUI) ui : null;
+		} catch( Throwable ex ) {
+			// ignore
+			return null;
+		}
+	}
+
+	private static boolean getUIMethodInitialized;
+	private static MethodHandle getUIMethod;
+
 	//---- class FlatUIDefaults -----------------------------------------------
 
 	private class FlatUIDefaults

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

@@ -33,6 +33,8 @@ public class FlatLightLaf
 	/**
 	 * Sets the application look and feel to this LaF
 	 * using {@link UIManager#setLookAndFeel(javax.swing.LookAndFeel)}.
+	 *
+	 * @since 1.2
 	 */
 	public static boolean setup() {
 		return setup( new FlatLightLaf() );

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

@@ -16,6 +16,7 @@
 
 package com.formdev.flatlaf;
 
+import javax.swing.SwingUtilities;
 import com.formdev.flatlaf.util.UIScale;
 
 /**
@@ -139,6 +140,20 @@ public interface FlatSystemProperties
 	 */
 	String USE_TEXT_Y_CORRECTION = "flatlaf.useTextYCorrection";
 
+	/**
+	 * Specifies whether FlatLaf updates the UI when the system font changes.
+	 * If {@code true}, {@link SwingUtilities#updateComponentTreeUI(java.awt.Component)}
+	 * gets invoked for all windows if the system font has changed.
+	 * This is the similar to when switching to another look and feel (theme).
+	 * Applications that do not work correctly when switching look and feel,
+	 * should disable this option to avoid corrupted UI.
+	 * <p>
+	 * <strong>Allowed Values</strong> {@code false} and {@code true}<br>
+	 * <strong>Default</strong> {@code true}
+	 * @since 2.5
+	 */
+	String UPDATE_UI_ON_SYSTEM_FONT_CHANGE = "flatlaf.updateUIOnSystemFontChange";
+
 	/**
 	 * Specifies a directory in which the native FlatLaf library have been extracted.
 	 * The path can be absolute or relative to current application working directory.

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

@@ -37,6 +37,7 @@ 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;
 
 /**
  * This class supports loading IntelliJ .theme.json files and using them as a Laf.
@@ -72,6 +73,8 @@ public class IntelliJTheme
 	 *
 	 * The input stream is automatically closed.
 	 * Using a buffered input stream is not necessary.
+	 *
+	 * @since 1.2
 	 */
 	public static boolean setup( InputStream in ) {
 		try {
@@ -162,8 +165,11 @@ public class IntelliJTheme
 		applyCheckBoxColors( defaults );
 
 		// copy values
-		for( Map.Entry<String, String> e : uiKeyCopying.entrySet() )
-			defaults.put( e.getKey(), defaults.get( e.getValue() ) );
+		for( Map.Entry<String, String> e : uiKeyCopying.entrySet() ) {
+			Object value = defaults.get( e.getValue() );
+			if( value != null )
+				defaults.put( e.getKey(), value );
+		}
 
 		// IDEA does not paint button background if disabled, but FlatLaf does
 		Object panelBackground = defaults.get( "Panel.background" );
@@ -311,8 +317,19 @@ public class IntelliJTheme
 	@SuppressWarnings( "unchecked" )
 	private void apply( String key, Object value, UIDefaults defaults, ArrayList<Object> defaultsKeysCache, Set<String> uiKeys ) {
 		if( value instanceof Map ) {
-			for( Map.Entry<String, Object> e : ((Map<String, Object>)value).entrySet() )
-				apply( key + '.' + e.getKey(), e.getValue(), defaults, defaultsKeysCache, uiKeys );
+			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" ) ) {
+				String osKey = SystemInfo.isWindows ? "os.windows"
+					: SystemInfo.isMacOS ? "os.mac"
+					: SystemInfo.isLinux ? "os.linux" : null;
+				if( osKey != null && map.containsKey( osKey ) )
+					apply( key, map.get( osKey ), defaults, defaultsKeysCache, uiKeys );
+				else if( map.containsKey( "os.default" ) )
+					apply( key, map.get( "os.default" ), defaults, defaultsKeysCache, uiKeys );
+			} else {
+				for( Map.Entry<String, Object> e : map.entrySet() )
+					apply( key + '.' + e.getKey(), e.getValue(), defaults, defaultsKeysCache, uiKeys );
+			}
 		} else {
 			if( "".equals( value ) )
 				return; // ignore empty value
@@ -612,6 +629,11 @@ public class IntelliJTheme
 		uiKeyCopying.put( "Spinner.buttonSeparatorColor",         "Component.borderColor" );
 		uiKeyCopying.put( "Spinner.buttonDisabledSeparatorColor", "Component.disabledBorderColor" );
 
+		// TabbedPane
+		uiKeyCopying.put( "TabbedPane.selectedBackground",     "DefaultTabs.underlinedTabBackground" );
+		uiKeyCopying.put( "TabbedPane.selectedForeground",     "DefaultTabs.underlinedTabForeground" );
+		uiKeyCopying.put( "TabbedPane.inactiveUnderlineColor", "DefaultTabs.inactiveUnderlineColor" );
+
 		// TitlePane
 		uiKeyCopying.put( "TitlePane.inactiveBackground",     "TitlePane.background" );
 		uiKeyMapping.put( "TitlePane.infoForeground",         "TitlePane.foreground" );

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

@@ -59,6 +59,11 @@ class SubMenuUsabilityHelper
 	private static final String KEY_USE_SAFE_TRIANGLE = "Menu.useSafeTriangle";
 	private static final String KEY_SHOW_SAFE_TRIANGLE = "FlatLaf.debug.menu.showSafeTriangle";
 
+	// Using a static field to ensure that there is only one instance in the system.
+	// Multiple instances would freeze the application.
+	// https://github.com/apache/netbeans/issues/4231#issuecomment-1179616607
+	private static SubMenuUsabilityHelper instance;
+
 	private SubMenuEventQueue subMenuEventQueue;
 	private SafeTrianglePainter safeTrianglePainter;
 	private boolean changePending;
@@ -74,13 +79,22 @@ class SubMenuUsabilityHelper
 
 	private Rectangle invokerBounds;
 
-	void install() {
-		MenuSelectionManager.defaultManager().addChangeListener( this );
+	static synchronized boolean install() {
+		if( instance != null )
+			return false;
+
+		instance = new SubMenuUsabilityHelper();
+		MenuSelectionManager.defaultManager().addChangeListener( instance );
+		return true;
 	}
 
-	void uninstall() {
-		MenuSelectionManager.defaultManager().removeChangeListener( this );
-		uninstallEventQueue();
+	static synchronized void uninstall() {
+		if( instance == null )
+			return;
+
+		MenuSelectionManager.defaultManager().removeChangeListener( instance );
+		instance.uninstallEventQueue();
+		instance = null;
 	}
 
 	@Override
@@ -298,7 +312,7 @@ debug*/
 			if( window instanceof RootPaneContainer ) {
 				JLayeredPane layeredPane = ((RootPaneContainer)window).getLayeredPane();
 				setSize( layeredPane.getSize() );
-				layeredPane.add( this, new Integer( JLayeredPane.POPUP_LAYER + 1 ) );
+				layeredPane.add( this, Integer.valueOf( JLayeredPane.POPUP_LAYER + 1 ) );
 			}
 		}
 

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

@@ -466,6 +466,10 @@ class UIDefaultsLoader
 				if( knownValueTypes == null ) {
 					// create lazy
 					knownValueTypes = new HashMap<>();
+					// system colors
+					knownValueTypes.put( "activeCaptionBorder", ValueType.COLOR );
+					knownValueTypes.put( "inactiveCaptionBorder", ValueType.COLOR );
+					knownValueTypes.put( "windowBorder", ValueType.COLOR );
 					// SplitPane
 					knownValueTypes.put( "SplitPane.dividerSize", ValueType.INTEGER );
 					knownValueTypes.put( "SplitPaneDivider.gripDotSize", ValueType.INTEGER );
@@ -780,6 +784,7 @@ class UIDefaultsLoader
 				case "tint":			return parseColorMix( "#fff", params, resolver, reportError );
 				case "shade":			return parseColorMix( "#000", params, resolver, reportError );
 				case "contrast":		return parseColorContrast( params, resolver, reportError );
+				case "over":			return parseColorOver( params, resolver, reportError );
 			}
 		} finally {
 			parseColorDepth--;
@@ -847,7 +852,7 @@ class UIDefaultsLoader
 		int lightness = parsePercentage( params.get( 2 ) );
 		int alpha = hasAlpha ? parsePercentage( params.get( 3 ) ) : 100;
 
-		float[] hsl = new float[] { hue, saturation, lightness };
+		float[] hsl = { hue, saturation, lightness };
 		return new ColorUIResource( HSLColor.toRGB( hsl, alpha / 100f ) );
 	}
 
@@ -1041,6 +1046,34 @@ class UIDefaultsLoader
 		return parseColorOrFunction( resolver.apply( darkOrLightColor ), resolver, reportError );
 	}
 
+	/**
+	 * Syntax: over(foreground,background)
+	 *   - foreground: a foreground color (e.g. #f00) or a color function;
+	 *                 the alpha of this color is used as weight to mix the two colors
+	 *   - background: a background color (e.g. #f00) or a color function
+	 */
+	private static ColorUIResource parseColorOver( List<String> params, Function<String, String> resolver, boolean reportError ) {
+		String foregroundStr = params.get( 0 );
+		String backgroundStr = params.get( 1 );
+
+		// parse foreground color
+		ColorUIResource foreground = (ColorUIResource) parseColorOrFunction( resolver.apply( foregroundStr ), resolver, reportError );
+		if( foreground == null || foreground.getAlpha() == 255 )
+			return foreground;
+
+		// foreground color without alpha
+		ColorUIResource foreground2 = new ColorUIResource( foreground.getRGB() );
+
+		// parse background color
+		ColorUIResource background = (ColorUIResource) parseColorOrFunction( resolver.apply( backgroundStr ), resolver, reportError );
+		if( background == null )
+			return foreground2;
+
+		// create new color
+		float weight = foreground.getAlpha() / 255f;
+		return new ColorUIResource( ColorFunctions.mix( foreground2, background, weight ) );
+	}
+
 	private static Object parseFunctionBaseColor( String colorStr, ColorFunction function,
 		boolean derived, Function<String, String> resolver, boolean reportError )
 	{

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

@@ -49,6 +49,14 @@ public class FlatCapsLockIcon
 		}
 	}
 
+	/** @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

@@ -172,6 +172,11 @@ public class FlatCheckBoxIcon
 		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 );

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

@@ -59,6 +59,11 @@ public class FlatCheckBoxMenuItemIcon
 		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

@@ -69,6 +69,11 @@ public class FlatClearIcon
 		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

@@ -84,6 +84,11 @@ public class FlatHelpButtonIcon
 		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 ) {
 		/*

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

@@ -61,6 +61,11 @@ public class FlatMenuArrowIcon
 		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

@@ -67,6 +67,11 @@ public class FlatSearchIcon
 		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

@@ -76,6 +76,11 @@ public class FlatTabbedPaneCloseIcon
 		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/ui/FlatBorder.java

@@ -101,6 +101,12 @@ public class FlatBorder
 		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();

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

@@ -42,6 +42,7 @@ import javax.swing.JTextField;
 import javax.swing.JToggleButton;
 import javax.swing.JToolBar;
 import javax.swing.LookAndFeel;
+import javax.swing.SwingConstants;
 import javax.swing.SwingUtilities;
 import javax.swing.UIManager;
 import javax.swing.plaf.ButtonUI;
@@ -77,20 +78,27 @@ import com.formdev.flatlaf.util.UIScale;
  * @uiDefault Button.startBackground			Color	optional; if set, a gradient paint is used and Button.background is ignored
  * @uiDefault Button.endBackground				Color	optional; if set, a gradient paint is used
  * @uiDefault Button.focusedBackground			Color	optional
+ * @uiDefault Button.focusedForeground			Color	optional
  * @uiDefault Button.hoverBackground			Color	optional
+ * @uiDefault Button.hoverForeground			Color	optional
  * @uiDefault Button.pressedBackground			Color	optional
+ * @uiDefault Button.pressedForeground			Color	optional
  * @uiDefault Button.selectedBackground			Color
  * @uiDefault Button.selectedForeground			Color
  * @uiDefault Button.disabledBackground			Color	optional
  * @uiDefault Button.disabledText				Color
  * @uiDefault Button.disabledSelectedBackground	Color
+ * @uiDefault Button.disabledSelectedForeground	Color	optional
  * @uiDefault Button.default.background			Color
  * @uiDefault Button.default.startBackground	Color	optional; if set, a gradient paint is used and Button.default.background is ignored
  * @uiDefault Button.default.endBackground		Color	optional; if set, a gradient paint is used
  * @uiDefault Button.default.foreground			Color
  * @uiDefault Button.default.focusedBackground	Color	optional
+ * @uiDefault Button.default.focusedForeground	Color	optional
  * @uiDefault Button.default.hoverBackground	Color	optional
+ * @uiDefault Button.default.hoverForeground	Color	optional
  * @uiDefault Button.default.pressedBackground	Color	optional
+ * @uiDefault Button.default.pressedForeground	Color	optional
  * @uiDefault Button.default.boldText			boolean
  * @uiDefault Button.paintShadow				boolean	default is false
  * @uiDefault Button.shadowWidth				int		default is 2
@@ -98,8 +106,13 @@ import com.formdev.flatlaf.util.UIScale;
  * @uiDefault Button.default.shadowColor		Color	optional
  * @uiDefault Button.toolbar.spacingInsets		Insets
  * @uiDefault Button.toolbar.hoverBackground	Color
+ * @uiDefault Button.toolbar.hoverForeground	Color	optional
  * @uiDefault Button.toolbar.pressedBackground	Color
+ * @uiDefault Button.toolbar.pressedForeground	Color	optional
  * @uiDefault Button.toolbar.selectedBackground	Color
+ * @uiDefault Button.toolbar.selectedForeground	Color	optional
+ * @uiDefault Button.toolbar.disabledSelectedBackground	Color	optional
+ * @uiDefault Button.toolbar.disabledSelectedForeground	Color	optional
  *
  * @author Karl Tauber
  */
@@ -116,20 +129,27 @@ public class FlatButtonUI
 	protected Color startBackground;
 	protected Color endBackground;
 	@Styleable protected Color focusedBackground;
+	/** @since 2.3 */ @Styleable protected Color focusedForeground;
 	@Styleable protected Color hoverBackground;
+	/** @since 2.3 */ @Styleable protected Color hoverForeground;
 	@Styleable protected Color pressedBackground;
+	/** @since 2.3 */ @Styleable protected Color pressedForeground;
 	@Styleable protected Color selectedBackground;
 	@Styleable protected Color selectedForeground;
 	@Styleable protected Color disabledBackground;
 	@Styleable protected Color disabledText;
 	@Styleable protected Color disabledSelectedBackground;
+	/** @since 2.3 */ @Styleable protected Color disabledSelectedForeground;
 
 	@Styleable(dot=true) protected Color defaultBackground;
 	protected Color defaultEndBackground;
 	@Styleable(dot=true) protected Color defaultForeground;
 	@Styleable(dot=true) protected Color defaultFocusedBackground;
+	/** @since 2.3 */ @Styleable(dot=true) protected Color defaultFocusedForeground;
 	@Styleable(dot=true) protected Color defaultHoverBackground;
+	/** @since 2.3 */ @Styleable(dot=true) protected Color defaultHoverForeground;
 	@Styleable(dot=true) protected Color defaultPressedBackground;
+	/** @since 2.3 */ @Styleable(dot=true) protected Color defaultPressedForeground;
 	@Styleable(dot=true) protected boolean defaultBoldText;
 
 	@Styleable protected boolean paintShadow;
@@ -138,8 +158,13 @@ public class FlatButtonUI
 	@Styleable(dot=true) protected Color defaultShadowColor;
 
 	@Styleable(dot=true) protected Color toolbarHoverBackground;
+	/** @since 2.3 */ @Styleable(dot=true) protected Color toolbarHoverForeground;
 	@Styleable(dot=true) protected Color toolbarPressedBackground;
+	/** @since 2.3 */ @Styleable(dot=true) protected Color toolbarPressedForeground;
 	@Styleable(dot=true) protected Color toolbarSelectedBackground;
+	/** @since 2.3 */ @Styleable(dot=true) protected Color toolbarSelectedForeground;
+	/** @since 2.3 */ @Styleable(dot=true) protected Color toolbarDisabledSelectedBackground;
+	/** @since 2.3 */ @Styleable(dot=true) protected Color toolbarDisabledSelectedForeground;
 
 	// only used via styling (not in UI defaults, but has likewise client properties)
 	/** @since 2 */ @Styleable protected String buttonType;
@@ -156,7 +181,7 @@ public class FlatButtonUI
 	private AtomicBoolean borderShared;
 
 	public static ComponentUI createUI( JComponent c ) {
-		return FlatUIUtils.canUseSharedUI( c )
+		return FlatUIUtils.canUseSharedUI( c ) && !FlatUIUtils.needsLightAWTPeer( c )
 			? FlatUIUtils.createSharedUI( FlatButtonUI.class, () -> new FlatButtonUI( true ) )
 			: new FlatButtonUI( false );
 	}
@@ -168,6 +193,13 @@ public class FlatButtonUI
 
 	@Override
 	public void installUI( JComponent c ) {
+		if( FlatUIUtils.needsLightAWTPeer( c ) )
+			FlatUIUtils.runWithLightAWTPeerUIDefaults( () -> installUIImpl( c ) );
+		else
+			installUIImpl( c );
+	}
+
+	private void installUIImpl( JComponent c ) {
 		super.installUI( c );
 
 		installStyle( (AbstractButton) c );
@@ -189,20 +221,27 @@ public class FlatButtonUI
 			startBackground = UIManager.getColor( prefix + "startBackground" );
 			endBackground = UIManager.getColor( prefix + "endBackground" );
 			focusedBackground = UIManager.getColor( prefix + "focusedBackground" );
+			focusedForeground = UIManager.getColor( prefix + "focusedForeground" );
 			hoverBackground = UIManager.getColor( prefix + "hoverBackground" );
+			hoverForeground = UIManager.getColor( prefix + "hoverForeground" );
 			pressedBackground = UIManager.getColor( prefix + "pressedBackground" );
+			pressedForeground = UIManager.getColor( prefix + "pressedForeground" );
 			selectedBackground = UIManager.getColor( prefix + "selectedBackground" );
 			selectedForeground = UIManager.getColor( prefix + "selectedForeground" );
 			disabledBackground = UIManager.getColor( prefix + "disabledBackground" );
 			disabledText = UIManager.getColor( prefix + "disabledText" );
 			disabledSelectedBackground = UIManager.getColor( prefix + "disabledSelectedBackground" );
+			disabledSelectedForeground = UIManager.getColor( prefix + "disabledSelectedForeground" );
 
 			defaultBackground = FlatUIUtils.getUIColor( "Button.default.startBackground", "Button.default.background" );
 			defaultEndBackground = UIManager.getColor( "Button.default.endBackground" );
 			defaultForeground = UIManager.getColor( "Button.default.foreground" );
 			defaultFocusedBackground = UIManager.getColor( "Button.default.focusedBackground" );
+			defaultFocusedForeground = UIManager.getColor( "Button.default.focusedForeground" );
 			defaultHoverBackground = UIManager.getColor( "Button.default.hoverBackground" );
+			defaultHoverForeground = UIManager.getColor( "Button.default.hoverForeground" );
 			defaultPressedBackground = UIManager.getColor( "Button.default.pressedBackground" );
+			defaultPressedForeground = UIManager.getColor( "Button.default.pressedForeground" );
 			defaultBoldText = UIManager.getBoolean( "Button.default.boldText" );
 
 			paintShadow = UIManager.getBoolean( "Button.paintShadow" );
@@ -211,8 +250,13 @@ public class FlatButtonUI
 			defaultShadowColor = UIManager.getColor( "Button.default.shadowColor" );
 
 			toolbarHoverBackground = UIManager.getColor( prefix + "toolbar.hoverBackground" );
+			toolbarHoverForeground = UIManager.getColor( prefix + "toolbar.hoverForeground" );
 			toolbarPressedBackground = UIManager.getColor( prefix + "toolbar.pressedBackground" );
+			toolbarPressedForeground = UIManager.getColor( prefix + "toolbar.pressedForeground" );
 			toolbarSelectedBackground = UIManager.getColor( prefix + "toolbar.selectedBackground" );
+			toolbarSelectedForeground = UIManager.getColor( prefix + "toolbar.selectedForeground" );
+			toolbarDisabledSelectedBackground = UIManager.getColor( prefix + "toolbar.disabledSelectedBackground" );
+			toolbarDisabledSelectedForeground = UIManager.getColor( prefix + "toolbar.disabledSelectedForeground" );
 
 			helpButtonIcon = UIManager.getIcon( "HelpButton.icon" );
 			defaultMargin = UIManager.getInsets( prefix + "margin" );
@@ -329,6 +373,18 @@ public class FlatButtonUI
 		return infos;
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		if( key.startsWith( "help." ) ) {
+			return (helpButtonIcon instanceof FlatHelpButtonIcon)
+				? ((FlatHelpButtonIcon)helpButtonIcon).getStyleableValue( key.substring( "help.".length() ) )
+				: null;
+		}
+
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, c.getBorder(), key );
+	}
+
 	static boolean isContentAreaFilled( Component c ) {
 		return !(c instanceof AbstractButton) || ((AbstractButton)c).isContentAreaFilled();
 	}
@@ -494,6 +550,23 @@ public class FlatButtonUI
 		super.paint( FlatLabelUI.createGraphicsHTMLTextYCorrection( g, c ), c );
 	}
 
+	@Override
+	protected void paintIcon( Graphics g, JComponent c, Rectangle iconRect ) {
+		// correct icon location when using bold font for default button
+		int xOffset = defaultBoldPlainWidthDiff( c ) / 2;
+		if( xOffset > 0 ) {
+			boolean ltr = c.getComponentOrientation().isLeftToRight();
+			switch( ((AbstractButton)c).getHorizontalTextPosition() ) {
+				case SwingConstants.RIGHT:    iconRect.x -= xOffset; break;
+				case SwingConstants.LEFT:     iconRect.x += xOffset; break;
+				case SwingConstants.TRAILING: iconRect.x -= ltr ? xOffset : -xOffset; break;
+				case SwingConstants.LEADING:  iconRect.x += ltr ? xOffset : -xOffset; break;
+			}
+		}
+
+		super.paintIcon( g, c, iconRect );
+	}
+
 	@Override
 	protected void paintText( Graphics g, AbstractButton b, Rectangle textRect, String text ) {
 		if( isHelpButton( b ) )
@@ -514,6 +587,8 @@ public class FlatButtonUI
 	}
 
 	public static void paintText( Graphics g, AbstractButton b, Rectangle textRect, String text, Color foreground ) {
+		if(foreground == null)
+			foreground=Color.red;
 		FontMetrics fm = b.getFontMetrics( b.getFont() );
 		int mnemonicIndex = FlatLaf.isShowMnemonics() ? b.getDisplayedMnemonicIndex() : -1;
 
@@ -527,11 +602,14 @@ public class FlatButtonUI
 
 		// selected state
 		if( ((AbstractButton)c).isSelected() ) {
-			// in toolbar use same background colors for disabled and enabled because
+			// in toolbar, if toolbarDisabledSelectedBackground is null,
+			// use same background colors for disabled and enabled because
 			// we assume that toolbar icon is shown disabled
 			return buttonStateColor( c,
 				toolBarButton ? toolbarSelectedBackground : selectedBackground,
-				toolBarButton ? toolbarSelectedBackground : disabledSelectedBackground,
+				toolBarButton
+					? (toolbarDisabledSelectedBackground != null ? toolbarDisabledSelectedBackground : toolbarSelectedBackground)
+					: disabledSelectedBackground,
 				null,
 				null,
 				toolBarButton ? toolbarPressedBackground : pressedBackground );
@@ -558,6 +636,9 @@ public class FlatButtonUI
 	}
 
 	protected Color getBackgroundBase( JComponent c, boolean def ) {
+		if( FlatUIUtils.isAWTPeer( c ) )
+			return background;
+
 		// use component background if explicitly set
 		Color bg = c.getBackground();
 		if( isCustomBackground( bg ) )
@@ -596,18 +677,48 @@ public class FlatButtonUI
 	}
 
 	protected Color getForeground( JComponent c ) {
-		if( !c.isEnabled() )
-			return disabledText;
+		boolean toolBarButton = isToolBarButton( c ) || isBorderlessButton( c );
 
-		if( ((AbstractButton)c).isSelected() && !(isToolBarButton( c ) || isBorderlessButton( c )) )
-			return selectedForeground;
+		// selected state
+		if( ((AbstractButton)c).isSelected() ) {
+			return buttonStateColor( c,
+				toolBarButton
+					? (toolbarSelectedForeground != null ? toolbarSelectedForeground : c.getForeground())
+					: selectedForeground,
+				toolBarButton
+					? (toolbarDisabledSelectedForeground != null ? toolbarDisabledSelectedForeground : disabledText)
+					: (disabledSelectedForeground != null ? disabledSelectedForeground : disabledText),
+				null,
+				null,
+				toolBarButton ? toolbarPressedForeground : pressedForeground );
+		}
 
+		// toolbar button
+		if( toolBarButton ) {
+			return buttonStateColor( c,
+				c.getForeground(),
+				disabledText,
+				null,
+				toolbarHoverForeground,
+				toolbarPressedForeground );
+		}
+
+		boolean def = isDefaultButton( c );
+		return buttonStateColor( c,
+			getForegroundBase( c, def ),
+			disabledText,
+			isCustomForeground( c.getForeground() ) ? null : (def ? defaultFocusedForeground : focusedForeground),
+			def ? defaultHoverForeground : hoverForeground,
+			def ? defaultPressedForeground : pressedForeground );
+	}
+
+	/** @since 2.3 */
+	protected Color getForegroundBase( JComponent c, boolean def ) {
 		// use component foreground if explicitly set
 		Color fg = c.getForeground();
 		if( isCustomForeground( fg ) )
 			return fg;
 
-		boolean def = isDefaultButton( c );
 		return def ? defaultForeground : fg;
 	}
 
@@ -624,6 +735,9 @@ public class FlatButtonUI
 		if( prefSize == null )
 			return null;
 
+		// increase width when using bold font for default button
+		prefSize.width += defaultBoldPlainWidthDiff( c );
+
 		// make square or apply minimum width/height
 		boolean isIconOnlyOrSingleCharacter = isIconOnlyOrSingleCharacterButton( c );
 		if( clientPropertyBoolean( c, SQUARE_SIZE, squareSize ) ) {
@@ -644,6 +758,23 @@ public class FlatButtonUI
 		return prefSize;
 	}
 
+	private int defaultBoldPlainWidthDiff( JComponent c ) {
+		if( defaultBoldText && isDefaultButton( c ) && c.getFont() instanceof UIResource ) {
+			String text = ((AbstractButton)c).getText();
+			if( text == null || text.isEmpty() )
+				return 0;
+
+			Font font = c.getFont();
+			Font boldFont = font.deriveFont( Font.BOLD );
+			int boldWidth = c.getFontMetrics( boldFont ).stringWidth( text );
+			int plainWidth = c.getFontMetrics( font ).stringWidth( text );
+			if( boldWidth > plainWidth )
+				return boldWidth - plainWidth;
+		}
+
+		return 0;
+	}
+
 	private boolean hasDefaultMargins( JComponent c ) {
 		Insets margin = ((AbstractButton)c).getMargin();
 		return margin instanceof UIResource && Objects.equals( margin, defaultMargin );

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

@@ -16,18 +16,20 @@
 
 package com.formdev.flatlaf.ui;
 
-import java.awt.Color;
 import java.awt.Dimension;
 import java.awt.Graphics;
 import java.beans.PropertyChangeListener;
+import java.lang.invoke.MethodHandles;
 import java.util.Map;
 import javax.swing.Icon;
 import javax.swing.JComponent;
 import javax.swing.LookAndFeel;
 import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.basic.BasicCheckBoxMenuItemUI;
+import javax.swing.plaf.basic.BasicMenuItemUI;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableField;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableLookupProvider;
 import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableUI;
-import com.formdev.flatlaf.ui.FlatStylingSupport.UnknownStyleException;
 import com.formdev.flatlaf.util.LoggingFacade;
 
 /**
@@ -58,9 +60,15 @@ import com.formdev.flatlaf.util.LoggingFacade;
  *
  * @author Karl Tauber
  */
+@StyleableField( cls=BasicMenuItemUI.class, key="selectionBackground" )
+@StyleableField( cls=BasicMenuItemUI.class, key="selectionForeground" )
+@StyleableField( cls=BasicMenuItemUI.class, key="disabledForeground" )
+@StyleableField( cls=BasicMenuItemUI.class, key="acceleratorForeground" )
+@StyleableField( cls=BasicMenuItemUI.class, key="acceleratorSelectionForeground" )
+
 public class FlatCheckBoxMenuItemUI
 	extends BasicCheckBoxMenuItemUI
-	implements StyleableUI
+	implements StyleableUI, StyleableLookupProvider
 {
 	private FlatMenuItemRenderer renderer;
 	private Map<String, Object> oldStyleValues;
@@ -119,29 +127,27 @@ public class FlatCheckBoxMenuItemUI
 
 	/** @since 2 */
 	protected Object applyStyleProperty( String key, Object value ) {
-		try {
-			return renderer.applyStyleProperty( key, value );
-		} catch ( UnknownStyleException ex ) {
-			// ignore
-		}
-
-		Object oldValue;
-		switch( key ) {
-			// BasicMenuItemUI
-			case "selectionBackground": oldValue = selectionBackground; selectionBackground = (Color) value; return oldValue;
-			case "selectionForeground": oldValue = selectionForeground; selectionForeground = (Color) value; return oldValue;
-			case "disabledForeground": oldValue = disabledForeground; disabledForeground = (Color) value; return oldValue;
-			case "acceleratorForeground": oldValue = acceleratorForeground; acceleratorForeground = (Color) value; return oldValue;
-			case "acceleratorSelectionForeground": oldValue = acceleratorSelectionForeground; acceleratorSelectionForeground = (Color) value; return oldValue;
-		}
-
-		return FlatStylingSupport.applyToAnnotatedObjectOrComponent( this, menuItem, key, value );
+		return FlatMenuItemUI.applyStyleProperty( menuItem, this, renderer, key, value );
 	}
 
 	/** @since 2 */
 	@Override
 	public Map<String, Class<?>> getStyleableInfos( JComponent c ) {
-		return FlatMenuItemUI.getStyleableInfos( renderer );
+		return FlatMenuItemUI.getStyleableInfos( this, renderer );
+	}
+
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatMenuItemUI.getStyleableValue( this, renderer, key );
+	}
+
+	/** @since 2.5 */
+	@Override
+	public MethodHandles.Lookup getLookupForStyling() {
+		// MethodHandles.lookup() is caller sensitive and must be invoked in this class,
+		// otherwise it is not possible to access protected fields in JRE superclass
+		return MethodHandles.lookup();
 	}
 
 	@Override

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

@@ -43,7 +43,7 @@ public class FlatCheckBoxUI
 	extends FlatRadioButtonUI
 {
 	public static ComponentUI createUI( JComponent c ) {
-		return FlatUIUtils.canUseSharedUI( c )
+		return FlatUIUtils.canUseSharedUI( c ) && !FlatUIUtils.needsLightAWTPeer( c )
 			? FlatUIUtils.createSharedUI( FlatCheckBoxUI.class, () -> new FlatCheckBoxUI( true ) )
 			: new FlatCheckBoxUI( false );
 	}

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

@@ -42,6 +42,7 @@ import java.awt.event.MouseEvent;
 import java.awt.event.MouseListener;
 import java.awt.geom.Rectangle2D;
 import java.beans.PropertyChangeListener;
+import java.lang.invoke.MethodHandles;
 import java.util.Map;
 import java.util.concurrent.atomic.AtomicBoolean;
 import javax.swing.AbstractAction;
@@ -70,6 +71,8 @@ import javax.swing.plaf.basic.BasicComboPopup;
 import javax.swing.plaf.basic.ComboPopup;
 import javax.swing.text.JTextComponent;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableField;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableLookupProvider;
 import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableUI;
 import com.formdev.flatlaf.util.LoggingFacade;
 import com.formdev.flatlaf.util.SystemInfo;
@@ -86,6 +89,11 @@ import com.formdev.flatlaf.util.SystemInfo;
  * @uiDefault ComboBox.padding					Insets
  * @uiDefault ComboBox.squareButton				boolean	default is true
  *
+ * <!-- BasicComboPopup -->
+ *
+ * @uiDefault ComboBox.selectionBackground		Color
+ * @uiDefault ComboBox.selectionForeground		Color
+ *
  * <!-- FlatComboBoxUI -->
  *
  * @uiDefault ComboBox.minimumWidth				int
@@ -112,9 +120,11 @@ import com.formdev.flatlaf.util.SystemInfo;
  *
  * @author Karl Tauber
  */
+@StyleableField( cls=BasicComboBoxUI.class, key="padding" )
+
 public class FlatComboBoxUI
 	extends BasicComboBoxUI
-	implements StyleableUI
+	implements StyleableUI, StyleableLookupProvider
 {
 	@Styleable protected int minimumWidth;
 	@Styleable protected int editorColumns;
@@ -122,6 +132,7 @@ public class FlatComboBoxUI
 	@Styleable protected String arrowType;
 	protected boolean isIntelliJTheme;
 
+	private Color background;
 	@Styleable protected Color editableBackground;
 	@Styleable protected Color focusedBackground;
 	@Styleable protected Color disabledBackground;
@@ -155,6 +166,13 @@ public class FlatComboBoxUI
 
 	@Override
 	public void installUI( JComponent c ) {
+		if( FlatUIUtils.needsLightAWTPeer( c ) )
+			FlatUIUtils.runWithLightAWTPeerUIDefaults( () -> installUIImpl( c ) );
+		else
+			installUIImpl( c );
+	}
+
+	private void installUIImpl( JComponent c ) {
 		super.installUI( c );
 
 		installStyle();
@@ -217,6 +235,7 @@ public class FlatComboBoxUI
 		arrowType = UIManager.getString( "Component.arrowType" );
 		isIntelliJTheme = UIManager.getBoolean( "Component.isIntelliJTheme" );
 
+		background = UIManager.getColor( "ComboBox.background" );
 		editableBackground = UIManager.getColor( "ComboBox.editableBackground" );
 		focusedBackground = UIManager.getColor( "ComboBox.focusedBackground" );
 		disabledBackground = UIManager.getColor( "ComboBox.disabledBackground" );
@@ -249,6 +268,7 @@ public class FlatComboBoxUI
 	protected void uninstallDefaults() {
 		super.uninstallDefaults();
 
+		background = null;
 		editableBackground = null;
 		focusedBackground = null;
 		disabledBackground = null;
@@ -486,13 +506,6 @@ public class FlatComboBoxUI
 
 	/** @since 2 */
 	protected Object applyStyleProperty( String key, Object value ) {
-		// BasicComboBoxUI
-		if( key.equals( "padding" ) ) {
-			Object oldValue = padding;
-			padding = (Insets) value;
-			return oldValue;
-		}
-
 		if( borderShared == null )
 			borderShared = new AtomicBoolean( true );
 		return FlatStylingSupport.applyToAnnotatedObjectOrBorder( this, key, value, comboBox, borderShared );
@@ -501,11 +514,21 @@ public class FlatComboBoxUI
 	/** @since 2 */
 	@Override
 	public Map<String, Class<?>> getStyleableInfos( JComponent c ) {
-		Map<String, Class<?>> infos = new FlatStylingSupport.StyleableInfosMap<>();
-		infos.put( "padding", Insets.class );
-		FlatStylingSupport.collectAnnotatedStyleableInfos( this, infos );
-		FlatStylingSupport.collectStyleableInfos( comboBox.getBorder(), infos );
-		return infos;
+		return FlatStylingSupport.getAnnotatedStyleableInfos( this, comboBox.getBorder() );
+	}
+
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, comboBox.getBorder(), key );
+	}
+
+	/** @since 2.5 */
+	@Override
+	public MethodHandles.Lookup getLookupForStyling() {
+		// MethodHandles.lookup() is caller sensitive and must be invoked in this class,
+		// otherwise it is not possible to access protected fields in JRE superclass
+		return MethodHandles.lookup();
 	}
 
 	@Override
@@ -603,7 +626,7 @@ public class FlatComboBoxUI
 
 		boolean shouldValidate = (c instanceof JPanel);
 
-		paddingBorder.install( c );
+		paddingBorder.install( c, 0 );
 		currentValuePane.paintComponent( g, c, comboBox, bounds.x, bounds.y, bounds.width, bounds.height, shouldValidate );
 		paddingBorder.uninstall();
 
@@ -618,6 +641,9 @@ public class FlatComboBoxUI
 
 	protected Color getBackground( boolean enabled ) {
 		if( enabled ) {
+			if( FlatUIUtils.isAWTPeer( comboBox ) )
+				return background;
+
 			Color background = comboBox.getBackground();
 
 			// always use explicitly set color
@@ -677,7 +703,7 @@ public class FlatComboBoxUI
 
 	@Override
 	protected Dimension getSizeForComponent( Component comp ) {
-		paddingBorder.install( comp );
+		paddingBorder.install( comp, 0 );
 		Dimension size = super.getSizeForComponent( comp );
 		paddingBorder.uninstall();
 		return size;
@@ -895,7 +921,7 @@ public class FlatComboBoxUI
 				Component c = renderer.getListCellRendererComponent( list, value, index, isSelected, cellHasFocus );
 				c.applyComponentOrientation( comboBox.getComponentOrientation() );
 
-				paddingBorder.install( c );
+				paddingBorder.install( c, Math.round( FlatUIUtils.getBorderFocusWidth( comboBox ) ) );
 
 				return c;
 			}
@@ -918,6 +944,7 @@ public class FlatComboBoxUI
 		private Insets padding;
 		private JComponent rendererComponent;
 		private Border rendererBorder;
+		private int focusWidth;
 
 		CellPaddingBorder( Insets padding ) {
 			this.padding = padding;
@@ -925,10 +952,12 @@ public class FlatComboBoxUI
 
 		// using synchronized to avoid problems with code that modifies combo box
 		// (model, selection, etc) not on AWT thread (which should be not done)
-		synchronized void install( Component c ) {
+		synchronized void install( Component c, int focusWidth ) {
 			if( !(c instanceof JComponent) )
 				return;
 
+			this.focusWidth = focusWidth;
+
 			JComponent jc = (JComponent) c;
 			Border oldBorder = jc.getBorder();
 			if( oldBorder == this )
@@ -982,6 +1011,12 @@ public class FlatComboBoxUI
 				insets.bottom = padding.bottom;
 				insets.right = padding.right;
 			}
+
+			// if used in popup list, add focus width for exact vertical alignment
+			// of text in popup list with text in combobox
+			insets.left += focusWidth;
+			insets.right += focusWidth;
+
 			return insets;
 		}
 

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

@@ -107,6 +107,12 @@ public class FlatDropShadowBorder
 		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/FlatEditorPaneUI.java

@@ -209,6 +209,12 @@ public class FlatEditorPaneUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	private void updateBackground() {
 		FlatTextFieldUI.updateBackground( getComponent(), background,
 			disabledBackground, inactiveBackground,

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

@@ -56,7 +56,7 @@ public class FlatEmptyBorder
 	protected static Insets scaleInsets( Component c, Insets insets,
 		int top, int left, int bottom, int right )
 	{
-		boolean leftToRight = left == right || c.getComponentOrientation().isLeftToRight();
+		boolean leftToRight = left == right || c == null || c.getComponentOrientation().isLeftToRight();
 		insets.left = scale( leftToRight ? left : right );
 		insets.top = scale( top );
 		insets.right = scale( leftToRight ? right : left );
@@ -76,4 +76,9 @@ public class FlatEmptyBorder
 		right = insets.right;
 		return oldInsets;
 	}
+
+	/** @since 2.5 */
+	public Insets getStyleableValue() {
+		return new Insets( top, left, bottom, right );
+	}
 }

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

@@ -19,11 +19,21 @@ package com.formdev.flatlaf.ui;
 import java.awt.BorderLayout;
 import java.awt.Component;
 import java.awt.Dimension;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Image;
 import java.awt.Insets;
+import java.awt.LayoutManager;
+import java.awt.RenderingHints;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
 import java.io.File;
+import java.lang.reflect.Method;
+import java.util.function.Function;
 import javax.swing.AbstractButton;
 import javax.swing.Box;
 import javax.swing.BoxLayout;
+import javax.swing.ButtonGroup;
 import javax.swing.Icon;
 import javax.swing.ImageIcon;
 import javax.swing.JButton;
@@ -34,12 +44,16 @@ import javax.swing.JPanel;
 import javax.swing.JScrollPane;
 import javax.swing.JTable;
 import javax.swing.JToggleButton;
+import javax.swing.JToolBar;
+import javax.swing.SwingConstants;
 import javax.swing.UIManager;
+import javax.swing.filechooser.FileSystemView;
 import javax.swing.filechooser.FileView;
 import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.metal.MetalFileChooserUI;
 import javax.swing.table.TableCellRenderer;
 import com.formdev.flatlaf.FlatClientProperties;
+import com.formdev.flatlaf.util.LoggingFacade;
 import com.formdev.flatlaf.util.ScaledImageIcon;
 import com.formdev.flatlaf.util.SystemInfo;
 import com.formdev.flatlaf.util.UIScale;
@@ -133,12 +147,21 @@ import com.formdev.flatlaf.util.UIScale;
  * @uiDefault FileChooser.listViewActionLabelText				String
  * @uiDefault FileChooser.detailsViewActionLabelText			String
  *
+ * <!-- FlatFileChooserUI -->
+ *
+ * @uiDefault FileChooser.shortcuts.buttonSize					Dimension	optional; default is 84,64
+ * @uiDefault FileChooser.shortcuts.iconSize					Dimension	optional; default is 32,32
+ * @uiDefault FileChooser.shortcuts.filesFunction				Function&lt;File[], File[]&gt;
+ * @uiDefault FileChooser.shortcuts.displayNameFunction			Function&lt;File, String&gt;
+ * @uiDefault FileChooser.shortcuts.iconFunction				Function&lt;File, Icon&gt;
+ *
  * @author Karl Tauber
  */
 public class FlatFileChooserUI
 	extends MetalFileChooserUI
 {
 	private final FlatFileView fileView = new FlatFileView();
+	private FlatShortcutsPanel shortcutsPanel;
 
 	public static ComponentUI createUI( JComponent c ) {
 		return new FlatFileChooserUI( (JFileChooser) c );
@@ -153,6 +176,25 @@ public class FlatFileChooserUI
 		super.installComponents( fc );
 
 		patchUI( fc );
+
+		if( !UIManager.getBoolean( "FileChooser.noPlacesBar" ) ) { // same as in Windows L&F
+			FlatShortcutsPanel panel = createShortcutsPanel( fc );
+			if( panel.getComponentCount() > 0 ) {
+				shortcutsPanel = panel;
+				fc.add( shortcutsPanel, BorderLayout.LINE_START );
+				fc.addPropertyChangeListener( shortcutsPanel );
+			}
+		}
+	}
+
+	@Override
+	public void uninstallComponents( JFileChooser fc ) {
+		super.uninstallComponents( fc );
+
+		if( shortcutsPanel != null ) {
+			fc.removePropertyChangeListener( shortcutsPanel );
+			shortcutsPanel = null;
+		}
 	}
 
 	private void patchUI( JFileChooser fc ) {
@@ -192,6 +234,25 @@ public class FlatFileChooserUI
 		} catch( ArrayIndexOutOfBoundsException ex ) {
 			// ignore
 		}
+
+		// put north, center and south components into a new panel so that
+		// the shortcuts panel (at west) gets full height
+		LayoutManager layout = fc.getLayout();
+		if( layout instanceof BorderLayout ) {
+			BorderLayout borderLayout = (BorderLayout) layout;
+			borderLayout.setHgap( 8 );
+
+			Component north = borderLayout.getLayoutComponent( BorderLayout.NORTH );
+			Component center = borderLayout.getLayoutComponent( BorderLayout.CENTER );
+			Component south = borderLayout.getLayoutComponent( BorderLayout.SOUTH );
+			if( north != null && center != null && south != null ) {
+				JPanel p = new JPanel( new BorderLayout( 0, 11 ) );
+				p.add( north, BorderLayout.NORTH );
+				p.add( center, BorderLayout.CENTER );
+				p.add( south, BorderLayout.SOUTH );
+				fc.add( p, BorderLayout.CENTER );
+			}
+		}
 	}
 
 	@Override
@@ -250,9 +311,19 @@ public class FlatFileChooserUI
 		return p;
 	}
 
+	/** @since 2.3 */
+	protected FlatShortcutsPanel createShortcutsPanel( JFileChooser fc ) {
+		return new FlatShortcutsPanel( fc );
+	}
+
 	@Override
 	public Dimension getPreferredSize( JComponent c ) {
-		return UIScale.scale( super.getPreferredSize( c ) );
+		Dimension prefSize = super.getPreferredSize( c );
+		Dimension minSize = getMinimumSize( c );
+		int shortcutsPanelWidth = (shortcutsPanel != null) ? shortcutsPanel.getPreferredSize().width : 0;
+		return new Dimension(
+			Math.max( prefSize.width, minSize.width + shortcutsPanelWidth ),
+			Math.max( prefSize.height, minSize.height ) );
 	}
 
 	@Override
@@ -316,4 +387,234 @@ public class FlatFileChooserUI
 			return icon;
 		}
 	}
+
+	//---- class FlatShortcutsPanel -------------------------------------------
+
+	/** @since 2.3 */
+	public static class FlatShortcutsPanel
+		extends JToolBar
+		implements PropertyChangeListener
+	{
+		private final JFileChooser fc;
+
+		private final Dimension buttonSize;
+		private final Dimension iconSize;
+		private final Function<File[], File[]> filesFunction;
+		private final Function<File, String> displayNameFunction;
+		private final Function<File, Icon> iconFunction;
+
+		protected final File[] files;
+		protected final JToggleButton[] buttons;
+		protected final ButtonGroup buttonGroup;
+
+		@SuppressWarnings( "unchecked" )
+		public FlatShortcutsPanel( JFileChooser fc ) {
+			super( JToolBar.VERTICAL );
+			this.fc = fc;
+			setFloatable( false );
+
+			buttonSize = UIScale.scale( getUIDimension( "FileChooser.shortcuts.buttonSize", 84, 64 ) );
+			iconSize = getUIDimension( "FileChooser.shortcuts.iconSize", 32, 32 );
+
+			filesFunction = (Function<File[], File[]>) UIManager.get( "FileChooser.shortcuts.filesFunction" );
+			displayNameFunction = (Function<File, String>) UIManager.get( "FileChooser.shortcuts.displayNameFunction" );
+			iconFunction = (Function<File, Icon>) UIManager.get( "FileChooser.shortcuts.iconFunction" );
+
+			FileSystemView fsv = fc.getFileSystemView();
+			File[] files = getChooserShortcutPanelFiles( fsv );
+			if( filesFunction != null )
+				files = filesFunction.apply( files );
+			this.files = files;
+
+			// create toolbar buttons
+			buttons = new JToggleButton[files.length];
+			buttonGroup = new ButtonGroup();
+			for( int i = 0; i < files.length; i++ ) {
+				// wrap drive path
+				if( fsv.isFileSystemRoot( files[i] ) )
+					files[i] = fsv.createFileObject( files[i].getAbsolutePath() );
+
+				File file = files[i];
+				String name = getDisplayName( fsv, file );
+				Icon icon = getIcon( fsv, file );
+
+				// remove path from name
+				int lastSepIndex = name.lastIndexOf( File.separatorChar );
+				if( lastSepIndex >= 0 && lastSepIndex < name.length() - 1 )
+					name = name.substring( lastSepIndex + 1 );
+
+				// scale icon (if necessary)
+				if( icon instanceof ImageIcon )
+					icon = new ScaledImageIcon( (ImageIcon) icon, iconSize.width, iconSize.height );
+				else if( icon != null )
+					icon = new ShortcutIcon( icon, iconSize.width, iconSize.height );
+
+				// create button
+				JToggleButton button = createButton( name, icon );
+				button.addActionListener( e -> {
+					fc.setCurrentDirectory( file );
+				} );
+
+				add( button );
+				buttonGroup.add( button );
+				buttons[i] = button;
+			}
+
+			directoryChanged( fc.getCurrentDirectory() );
+		}
+
+		private Dimension getUIDimension( String key, int defaultWidth, int defaultHeight ) {
+			Dimension size = UIManager.getDimension( key );
+			if( size == null )
+				size = new Dimension( defaultWidth, defaultHeight );
+			return size;
+		}
+
+		protected JToggleButton createButton( String name, Icon icon ) {
+			JToggleButton button = new JToggleButton( name, icon );
+			button.setVerticalTextPosition( SwingConstants.BOTTOM );
+			button.setHorizontalTextPosition( SwingConstants.CENTER );
+			button.setAlignmentX( Component.CENTER_ALIGNMENT );
+			button.setIconTextGap( 0 );
+			button.setPreferredSize( buttonSize );
+			button.setMaximumSize( buttonSize );
+			return button;
+		}
+
+		protected File[] getChooserShortcutPanelFiles( FileSystemView fsv ) {
+			try {
+				if( SystemInfo.isJava_12_orLater ) {
+					Method m = fsv.getClass().getMethod( "getChooserShortcutPanelFiles" );
+					File[] files = (File[]) m.invoke( fsv );
+
+					// on macOS and Linux, files consists only of the user home directory
+					if( files.length == 1 && files[0].equals( new File( System.getProperty( "user.home" ) ) ) )
+						files = new File[0];
+
+					return files;
+				} else if( SystemInfo.isWindows ) {
+					Class<?> cls = Class.forName( "sun.awt.shell.ShellFolder" );
+					Method m = cls.getMethod( "get", String.class );
+					return (File[]) m.invoke( null, "fileChooserShortcutPanelFolders" );
+				}
+			} catch( IllegalAccessException ex ) {
+				// do not log because access may be denied via VM option '--illegal-access=deny'
+			} catch( Exception ex ) {
+				LoggingFacade.INSTANCE.logSevere( null, ex );
+			}
+
+			// fallback
+			return new File[0];
+		}
+
+		protected String getDisplayName( FileSystemView fsv, File file ) {
+			if( displayNameFunction != null ) {
+				String name = displayNameFunction.apply( file );
+				if( name != null )
+					return name;
+			}
+
+			return fsv.getSystemDisplayName( file );
+		}
+
+		protected Icon getIcon( FileSystemView fsv, File file ) {
+			if( iconFunction != null ) {
+				Icon icon = iconFunction.apply( file );
+				if( icon != null )
+					return icon;
+			}
+
+			// Java 17+ supports getting larger system icons
+			try {
+				if( SystemInfo.isJava_17_orLater ) {
+					Method m = fsv.getClass().getMethod( "getSystemIcon", File.class, int.class, int.class );
+					return (Icon) m.invoke( fsv, file, iconSize.width, iconSize.height );
+				} else if( iconSize.width > 16 || iconSize.height > 16 ) {
+					Class<?> cls = Class.forName( "sun.awt.shell.ShellFolder" );
+					if( cls.isInstance( file ) ) {
+						Method m = file.getClass().getMethod( "getIcon", boolean.class );
+						m.setAccessible( true );
+						Image image = (Image) m.invoke( file, true );
+						if( image != null )
+							return new ImageIcon( image );
+					}
+				}
+			} catch( IllegalAccessException ex ) {
+				// do not log because access may be denied via VM option '--illegal-access=deny'
+			} catch( Exception ex ) {
+				LoggingFacade.INSTANCE.logSevere( null, ex );
+			}
+
+			// get system icon in default size 16x16
+			return fsv.getSystemIcon( file );
+		}
+
+		protected void directoryChanged( File file ) {
+			if( file != null ) {
+				String absolutePath = file.getAbsolutePath();
+				for( int i = 0; i < files.length; i++ ) {
+					// also compare path because otherwise selecting "Documents"
+					// in "Look in" combobox would not select "Documents" shortcut item
+					if( files[i].equals( file ) || files[i].getAbsolutePath().equals( absolutePath ) ) {
+						buttons[i].setSelected( true );
+						return;
+					}
+				}
+			}
+
+			buttonGroup.clearSelection();
+		}
+
+		@Override
+		public void propertyChange( PropertyChangeEvent e ) {
+			switch( e.getPropertyName() ) {
+				case JFileChooser.DIRECTORY_CHANGED_PROPERTY:
+					directoryChanged( fc.getCurrentDirectory() );
+					break;
+			}
+		}
+	}
+
+	//---- class ShortcutIcon -------------------------------------------------
+
+	private static class ShortcutIcon
+		implements Icon
+	{
+		private final Icon icon;
+		private final int iconWidth;
+		private final int iconHeight;
+
+		ShortcutIcon( Icon icon, int iconWidth, int iconHeight ) {
+			this.icon = icon;
+			this.iconWidth = iconWidth;
+			this.iconHeight = iconHeight;
+		}
+
+		@Override
+		public void paintIcon( Component c, Graphics g, int x, int y ) {
+			Graphics2D g2 = (Graphics2D) g.create();
+			try {
+				// set rendering hint for the case that the icon is a bitmap (not used for vector icons)
+				g2.setRenderingHint( RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC );
+
+				double scale = (double) getIconWidth() / (double) icon.getIconWidth();
+				g2.translate( x, y );
+				g2.scale( scale, scale );
+
+				icon.paintIcon( c, g2, 0, 0 );
+			} finally {
+				g2.dispose();
+			}
+		}
+
+		@Override
+		public int getIconWidth() {
+			return UIScale.scale( iconWidth );
+		}
+
+		@Override
+		public int getIconHeight() {
+			return UIScale.scale( iconHeight );
+		}
+	}
 }

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

@@ -179,6 +179,12 @@ public class FlatInternalFrameUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this, frame.getBorder() );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, frame.getBorder(), key );
+	}
+
 	@Override
 	public void update( Graphics g, JComponent c ) {
 		// The internal frame actually should be opaque and fill its background,
@@ -253,6 +259,23 @@ public class FlatInternalFrameUI
 			return infos;
 		}
 
+		/** @since 2.5 */
+		@Override
+		public Object getStyleableValue( String key ) {
+			switch( key ) {
+				case "borderMargins": return getStyleableValue();
+
+				case "activeDropShadowColor": return activeDropShadowBorder.getStyleableValue( "shadowColor" );
+				case "activeDropShadowInsets": return activeDropShadowBorder.getStyleableValue( "shadowInsets" );
+				case "activeDropShadowOpacity": return activeDropShadowBorder.getStyleableValue( "shadowOpacity" );
+				case "inactiveDropShadowColor": return inactiveDropShadowBorder.getStyleableValue( "shadowColor" );
+				case "inactiveDropShadowInsets": return inactiveDropShadowBorder.getStyleableValue( "shadowInsets" );
+				case "inactiveDropShadowOpacity": return inactiveDropShadowBorder.getStyleableValue( "shadowOpacity" );
+			}
+
+			return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+		}
+
 		@Override
 		public Insets getBorderInsets( Component c, Insets insets ) {
 			if( c instanceof JInternalFrame && ((JInternalFrame)c).isMaximum() ) {

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

@@ -158,6 +158,12 @@ public class FlatLabelUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	/**
 	 * Checks whether text contains HTML tags that use "absolute-size" keywords
 	 * (e.g. "x-large") for font-size in default style sheet

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

@@ -90,6 +90,13 @@ public class FlatListUI
 
 	@Override
 	public void installUI( JComponent c ) {
+		if( FlatUIUtils.needsLightAWTPeer( c ) )
+			FlatUIUtils.runWithLightAWTPeerUIDefaults( () -> installUIImpl( c ) );
+		else
+			installUIImpl( c );
+	}
+
+	private void installUIImpl( JComponent c ) {
 		super.installUI( c );
 
 		installStyle();
@@ -209,6 +216,12 @@ public class FlatListUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	/**
 	 * Toggle selection colors from focused to inactive and vice versa.
 	 *

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

@@ -51,6 +51,12 @@ public class FlatMenuBarBorder
 		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/FlatMenuBarUI.java

@@ -18,8 +18,10 @@ package com.formdev.flatlaf.ui;
 
 import java.awt.Color;
 import java.awt.Component;
+import java.awt.Container;
 import java.awt.Graphics;
 import java.awt.Insets;
+import java.awt.LayoutManager;
 import java.awt.Window;
 import java.awt.event.ActionEvent;
 import java.beans.PropertyChangeListener;
@@ -27,6 +29,7 @@ import java.util.Map;
 import java.util.concurrent.atomic.AtomicBoolean;
 import javax.swing.AbstractAction;
 import javax.swing.ActionMap;
+import javax.swing.BoxLayout;
 import javax.swing.JComponent;
 import javax.swing.JMenu;
 import javax.swing.JMenuBar;
@@ -40,11 +43,13 @@ import javax.swing.plaf.ActionMapUIResource;
 import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.UIResource;
 import javax.swing.plaf.basic.BasicMenuBarUI;
+import javax.swing.plaf.basic.DefaultMenuLayout;
 import com.formdev.flatlaf.FlatLaf;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
 import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableUI;
 import com.formdev.flatlaf.util.LoggingFacade;
 import com.formdev.flatlaf.util.SystemInfo;
+import com.formdev.flatlaf.util.UIScale;
 
 /**
  * Provides the Flat LaF UI delegate for {@link javax.swing.JMenuBar}.
@@ -71,6 +76,8 @@ public class FlatMenuBarUI
 
 	// used in FlatMenuUI
 	/** @since 2 */ @Styleable protected Color hoverBackground;
+	/** @since 2.5 */ @Styleable protected Color selectionBackground;
+	/** @since 2.5 */ @Styleable protected Color selectionForeground;
 	/** @since 2 */ @Styleable protected Color underlineSelectionBackground;
 	/** @since 2 */ @Styleable protected Color underlineSelectionColor;
 	/** @since 2 */ @Styleable protected int underlineSelectionHeight = -1;
@@ -100,6 +107,10 @@ public class FlatMenuBarUI
 		super.installDefaults();
 
 		LookAndFeel.installProperty( menuBar, "opaque", false );
+
+		LayoutManager layout = menuBar.getLayout();
+		if( layout == null || layout instanceof UIResource )
+			menuBar.setLayout( new FlatMenuBarLayout( menuBar ) );
 	}
 
 	@Override
@@ -165,6 +176,12 @@ public class FlatMenuBarUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this, menuBar.getBorder() );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, menuBar.getBorder(), key );
+	}
+
 	@Override
 	public void update( Graphics g, JComponent c ) {
 		// paint background
@@ -221,6 +238,130 @@ public class FlatMenuBarUI
 			rootPane.getWindowDecorationStyle() != JRootPane.NONE;
 	}
 
+	//---- class FlatMenuBarLayout --------------------------------------------
+
+	/**
+	 * @since 2.4
+	 */
+	protected static class FlatMenuBarLayout
+		extends DefaultMenuLayout
+	{
+		public FlatMenuBarLayout( Container target ) {
+			super( target, BoxLayout.LINE_AXIS );
+		}
+
+		@Override
+		public void layoutContainer( Container target ) {
+			super.layoutContainer( target );
+
+
+			// The only purpose of the code below is to make sure that a horizontal glue,
+			// which can be used to move window and displays the window title in embedded menu bar,
+			// is always visible within the menu bar bounds and has a minimum width.
+			// If this is not the case, the horizontal glue is made larger and
+			// components that are on the left side of the glue are made smaller.
+
+
+			// get root pane and check whether this menu bar is the root pane menu bar
+			JRootPane rootPane = SwingUtilities.getRootPane( target );
+			if( rootPane == null || rootPane.getJMenuBar() != target )
+				return;
+
+			// get title pane and check whether menu bar is embedded
+			FlatTitlePane titlePane = FlatRootPaneUI.getTitlePane( rootPane );
+			if( titlePane == null || !titlePane.isMenuBarEmbedded() )
+				return;
+
+			// check whether there is a horizontal glue (used for window title in embedded menu bar)
+			// and check minimum width of horizontal glue
+			Component horizontalGlue = titlePane.findHorizontalGlue( (JMenuBar) target );
+			int minTitleWidth = UIScale.scale( titlePane.titleMinimumWidth );
+			if( horizontalGlue != null && horizontalGlue.getWidth() < minTitleWidth ) {
+				// get index of glue component
+				int glueIndex = -1;
+				Component[] components = target.getComponents();
+				for( int i = components.length - 1; i >= 0; i-- ) {
+					if( components[i] == horizontalGlue ) {
+						glueIndex = i;
+						break;
+					}
+				}
+				if( glueIndex < 0 )
+					return; // should never happen
+
+				if( target.getComponentOrientation().isLeftToRight() ) {
+					// left-to-right
+
+					// make horizontal glue wider (minimum title width)
+					int offset = minTitleWidth - horizontalGlue.getWidth();
+					horizontalGlue.setSize( minTitleWidth, horizontalGlue.getHeight() );
+
+					// check whether glue is fully visible
+					int minGlueX = target.getWidth() - target.getInsets().right - minTitleWidth;
+					if( minGlueX < horizontalGlue.getX() ) {
+						// move glue to the left to make it fully visible
+						offset -= (horizontalGlue.getX() - minGlueX);
+						horizontalGlue.setLocation( minGlueX, horizontalGlue.getY() );
+
+						// shrink and move components that are on the left side of the glue
+						for( int i = glueIndex - 1; i >= 0; i-- ) {
+							Component c = components[i];
+							if( c.getX() > minGlueX ) {
+								// move component and set width to zero
+								c.setBounds( minGlueX, c.getY(), 0, c.getHeight() );
+							} else {
+								// reduce size of component
+								c.setSize( minGlueX - c.getX(), c.getHeight() );
+								break;
+							}
+						}
+					}
+
+					// move components that are on the right side of the glue
+					for( int i = glueIndex + 1; i < components.length; i++ ) {
+						Component c = components[i];
+						c.setLocation( c.getX() + offset, c.getY() );
+					}
+				} else {
+					// right-to-left
+
+					// make horizontal glue wider (minimum title width)
+					int offset = minTitleWidth - horizontalGlue.getWidth();
+					horizontalGlue.setBounds( horizontalGlue.getX() - offset, horizontalGlue.getY(),
+						minTitleWidth, horizontalGlue.getHeight() );
+
+					// check whether glue is fully visible
+					int minGlueX = target.getInsets().left;
+					if( minGlueX > horizontalGlue.getX() ) {
+						// move glue to the right to make it fully visible
+						offset -= (horizontalGlue.getX() - minGlueX);
+						horizontalGlue.setLocation( minGlueX, horizontalGlue.getY() );
+
+						// shrink and move components that are on the right side of the glue
+						int x = horizontalGlue.getX() + horizontalGlue.getWidth();
+						for( int i = glueIndex - 1; i >= 0; i-- ) {
+							Component c = components[i];
+							if( c.getX() + c.getWidth() < x ) {
+								// move component and set width to zero
+								c.setBounds( x, c.getY(), 0, c.getHeight() );
+							} else {
+								// move component and reduce size
+								c.setBounds( x, c.getY(), c.getWidth() - (x - c.getX()), c.getHeight() );
+								break;
+							}
+						}
+					}
+
+					// move components that are on the left side of the glue
+					for( int i = glueIndex + 1; i < components.length; i++ ) {
+						Component c = components[i];
+						c.setLocation( c.getX() - offset, c.getY() );
+					}
+				}
+			}
+		}
+	}
+
 	//---- class TakeFocus ----------------------------------------------------
 
 	/**

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

@@ -97,6 +97,7 @@ public class FlatMenuItemRenderer
 	@Styleable protected int underlineSelectionHeight = UIManager.getInt( "MenuItem.underlineSelectionHeight" );
 
 	private boolean iconsShared = true;
+	private final Font menuFont = UIManager.getFont( "Menu.font" );
 
 	protected FlatMenuItemRenderer( JMenuItem menuItem, Icon checkIcon, Icon arrowIcon,
 		Font acceleratorFont, String acceleratorDelimiter )
@@ -169,6 +170,19 @@ public class FlatMenuItemRenderer
 		return infos;
 	}
 
+	/** @since 2.5 */
+	public Object getStyleableValue( String key ) {
+		if( key.startsWith( "icon." ) ) {
+			String key2 = key.substring( "icon.".length() );
+			if( checkIcon instanceof FlatCheckBoxMenuItemIcon )
+				return ((FlatCheckBoxMenuItemIcon)checkIcon).getStyleableValue( key2 );
+			if( arrowIcon instanceof FlatMenuArrowIcon )
+				return ((FlatMenuArrowIcon)arrowIcon).getStyleableValue( key2 );
+		}
+
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	protected Dimension getPreferredMenuItemSize() {
 		int width = 0;
 		int height = 0;
@@ -180,7 +194,8 @@ public class FlatMenuItemRenderer
 
 		// layout icon and text
 		SwingUtilities.layoutCompoundLabel( menuItem,
-			menuItem.getFontMetrics( menuItem.getFont() ), menuItem.getText(), getIconForLayout(),
+			menuItem.getFontMetrics( isTopLevelMenu ? getTopLevelFont() : menuItem.getFont() ),
+			menuItem.getText(), getIconForLayout(),
 			menuItem.getVerticalAlignment(), menuItem.getHorizontalAlignment(),
 			menuItem.getVerticalTextPosition(), menuItem.getHorizontalTextPosition(),
 			viewRect, iconRect, textRect, scale( menuItem.getIconTextGap() ) );
@@ -282,7 +297,8 @@ public class FlatMenuItemRenderer
 
 		// layout icon and text
 		SwingUtilities.layoutCompoundLabel( menuItem,
-			menuItem.getFontMetrics( menuItem.getFont() ), menuItem.getText(), getIconForLayout(),
+			menuItem.getFontMetrics( isTopLevelMenu ? getTopLevelFont() : menuItem.getFont() ),
+			menuItem.getText(), getIconForLayout(),
 			menuItem.getVerticalAlignment(), menuItem.getHorizontalAlignment(),
 			menuItem.getVerticalTextPosition(), menuItem.getHorizontalTextPosition(),
 			labelRect, iconRect, textRect, scale( menuItem.getIconTextGap() ) );
@@ -392,9 +408,10 @@ debug*/
 		}
 
 		int mnemonicIndex = FlatLaf.isShowMnemonics() ? menuItem.getDisplayedMnemonicIndex() : -1;
-		Color foreground = (isTopLevelMenu( menuItem ) ? menuItem.getParent() : menuItem).getForeground();
+		boolean isTopLevelMenu = isTopLevelMenu( menuItem );
+		Color foreground = (isTopLevelMenu ? menuItem.getParent() : menuItem).getForeground();
 
-		paintText( g, menuItem, textRect, text, mnemonicIndex, menuItem.getFont(),
+		paintText( g, menuItem, textRect, text, mnemonicIndex, isTopLevelMenu ? getTopLevelFont() : menuItem.getFont(),
 			foreground, isUnderlineSelection() ? foreground : selectionForeground, disabledForeground );
 	}
 
@@ -446,6 +463,19 @@ debug*/
 	protected static void paintHTMLText( Graphics g, JMenuItem menuItem,
 		Rectangle textRect, View htmlView, Color selectionForeground )
 	{
+		// On Windows, using Segoe UI font, Java 15 or older and scaling greater than 1,
+		// the width of the HTML view may be initially too small (because component
+		// is not connected to a GraphicsConfiguration when getPreferredSize() is invoked).
+		// Since Java 16, this seems to be fixed somehow by doing popup menu layout twice.
+		//
+		// If using a too small width for htmlView.paint(), the view would rearrange
+		// its children and wrap them to two lines. To avoid this, use view preferred X span
+		// for painting. Core Lafs actually do the same in class MenuItemLayoutHelper.
+		//
+		// Example HTML text that causes the problem: "<html>some <b>HTML</b> <i>text</i></html>"
+		textRect = new Rectangle( textRect );
+		textRect.width = (int) htmlView.getPreferredSpan( View.X_AXIS );
+
 		if( isArmedOrSelected( menuItem ) && selectionForeground != null )
 			g = new GraphicsProxyWithTextColor( (Graphics2D) g, selectionForeground );
 
@@ -468,6 +498,11 @@ debug*/
 		return "underline".equals( UIManager.getString( "MenuItem.selectionType" ) );
 	}
 
+	private Font getTopLevelFont() {
+		Font font = menuItem.getFont();
+		return (font != menuFont) ? font : menuItem.getParent().getFont();
+	}
+
 	private Icon getIconForPainting() {
 		Icon icon = menuItem.getIcon();
 

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

@@ -16,16 +16,19 @@
 
 package com.formdev.flatlaf.ui;
 
-import java.awt.Color;
 import java.awt.Dimension;
 import java.awt.Graphics;
 import java.beans.PropertyChangeListener;
+import java.lang.invoke.MethodHandles;
 import java.util.Map;
 import javax.swing.Icon;
 import javax.swing.JComponent;
+import javax.swing.JMenuItem;
 import javax.swing.LookAndFeel;
 import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.basic.BasicMenuItemUI;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableField;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableLookupProvider;
 import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableUI;
 import com.formdev.flatlaf.ui.FlatStylingSupport.UnknownStyleException;
 import com.formdev.flatlaf.util.LoggingFacade;
@@ -58,9 +61,15 @@ import com.formdev.flatlaf.util.LoggingFacade;
  *
  * @author Karl Tauber
  */
+@StyleableField( cls=BasicMenuItemUI.class, key="selectionBackground" )
+@StyleableField( cls=BasicMenuItemUI.class, key="selectionForeground" )
+@StyleableField( cls=BasicMenuItemUI.class, key="disabledForeground" )
+@StyleableField( cls=BasicMenuItemUI.class, key="acceleratorForeground" )
+@StyleableField( cls=BasicMenuItemUI.class, key="acceleratorSelectionForeground" )
+
 public class FlatMenuItemUI
 	extends BasicMenuItemUI
-	implements StyleableUI
+	implements StyleableUI, StyleableLookupProvider
 {
 	private FlatMenuItemRenderer renderer;
 	private Map<String, Object> oldStyleValues;
@@ -119,42 +128,54 @@ public class FlatMenuItemUI
 
 	/** @since 2 */
 	protected Object applyStyleProperty( String key, Object value ) {
+		return applyStyleProperty( menuItem, this, renderer, key, value );
+	}
+
+	static Object applyStyleProperty( JMenuItem menuItem, BasicMenuItemUI ui,
+		FlatMenuItemRenderer renderer, String key, Object value )
+	{
 		try {
 			return renderer.applyStyleProperty( key, value );
 		} catch ( UnknownStyleException ex ) {
 			// ignore
 		}
 
-		Object oldValue;
-		switch( key ) {
-			// BasicMenuItemUI
-			case "selectionBackground": oldValue = selectionBackground; selectionBackground = (Color) value; return oldValue;
-			case "selectionForeground": oldValue = selectionForeground; selectionForeground = (Color) value; return oldValue;
-			case "disabledForeground": oldValue = disabledForeground; disabledForeground = (Color) value; return oldValue;
-			case "acceleratorForeground": oldValue = acceleratorForeground; acceleratorForeground = (Color) value; return oldValue;
-			case "acceleratorSelectionForeground": oldValue = acceleratorSelectionForeground; acceleratorSelectionForeground = (Color) value; return oldValue;
-		}
-
-		return FlatStylingSupport.applyToAnnotatedObjectOrComponent( this, menuItem, key, value );
+		return FlatStylingSupport.applyToAnnotatedObjectOrComponent( ui, menuItem, key, value );
 	}
 
 	/** @since 2 */
 	@Override
 	public Map<String, Class<?>> getStyleableInfos( JComponent c ) {
-		return getStyleableInfos( renderer );
+		return getStyleableInfos( this, renderer );
 	}
 
-	static Map<String, Class<?>> getStyleableInfos( FlatMenuItemRenderer renderer ) {
-		Map<String, Class<?>> infos = new FlatStylingSupport.StyleableInfosMap<>();
-		infos.put( "selectionBackground", Color.class );
-		infos.put( "selectionForeground", Color.class );
-		infos.put( "disabledForeground", Color.class );
-		infos.put( "acceleratorForeground", Color.class );
-		infos.put( "acceleratorSelectionForeground", Color.class );
+	static Map<String, Class<?>> getStyleableInfos( BasicMenuItemUI ui, FlatMenuItemRenderer renderer ) {
+		Map<String, Class<?>> infos = FlatStylingSupport.getAnnotatedStyleableInfos( ui );
 		infos.putAll( renderer.getStyleableInfos() );
 		return infos;
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return getStyleableValue( this, renderer, key );
+	}
+
+	static Object getStyleableValue( BasicMenuItemUI ui, FlatMenuItemRenderer renderer, String key ) {
+		Object value = renderer.getStyleableValue( key );
+		if( value == null )
+			value = FlatStylingSupport.getAnnotatedStyleableValue( ui, key );
+		return value;
+	}
+
+	/** @since 2.5 */
+	@Override
+	public MethodHandles.Lookup getLookupForStyling() {
+		// MethodHandles.lookup() is caller sensitive and must be invoked in this class,
+		// otherwise it is not possible to access protected fields in JRE superclass
+		return MethodHandles.lookup();
+	}
+
 	@Override
 	protected Dimension getPreferredMenuItemSize( JComponent c, Icon checkIcon, Icon arrowIcon, int defaultTextIconGap ) {
 		return renderer.getPreferredMenuItemSize();

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

@@ -20,8 +20,10 @@ import java.awt.Color;
 import java.awt.Dimension;
 import java.awt.Font;
 import java.awt.Graphics;
+import java.awt.Rectangle;
 import java.awt.event.MouseEvent;
 import java.beans.PropertyChangeListener;
+import java.lang.invoke.MethodHandles;
 import java.util.Map;
 import java.util.function.Function;
 import javax.swing.ButtonModel;
@@ -35,9 +37,11 @@ import javax.swing.UIManager;
 import javax.swing.event.MouseInputListener;
 import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.MenuBarUI;
+import javax.swing.plaf.basic.BasicMenuItemUI;
 import javax.swing.plaf.basic.BasicMenuUI;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableField;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableLookupProvider;
 import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableUI;
-import com.formdev.flatlaf.ui.FlatStylingSupport.UnknownStyleException;
 import com.formdev.flatlaf.util.LoggingFacade;
 
 /**
@@ -72,15 +76,23 @@ import com.formdev.flatlaf.util.LoggingFacade;
  * <!-- FlatMenuRenderer -->
  *
  * @uiDefault MenuBar.hoverBackground								Color
+ * @uiDefault MenuBar.selectionBackground							Color
+ * @uiDefault MenuBar.selectionForeground							Color
  * @uiDefault MenuBar.underlineSelectionBackground					Color
  * @uiDefault MenuBar.underlineSelectionColor						Color
  * @uiDefault MenuBar.underlineSelectionHeight						int
  *
  * @author Karl Tauber
  */
+@StyleableField( cls=BasicMenuItemUI.class, key="selectionBackground" )
+@StyleableField( cls=BasicMenuItemUI.class, key="selectionForeground" )
+@StyleableField( cls=BasicMenuItemUI.class, key="disabledForeground" )
+@StyleableField( cls=BasicMenuItemUI.class, key="acceleratorForeground" )
+@StyleableField( cls=BasicMenuItemUI.class, key="acceleratorSelectionForeground" )
+
 public class FlatMenuUI
 	extends BasicMenuUI
-	implements StyleableUI
+	implements StyleableUI, StyleableLookupProvider
 {
 	private FlatMenuItemRenderer renderer;
 	private Map<String, Object> oldStyleValues;
@@ -166,29 +178,27 @@ public class FlatMenuUI
 
 	/** @since 2 */
 	protected Object applyStyleProperty( String key, Object value ) {
-		try {
-			return renderer.applyStyleProperty( key, value );
-		} catch ( UnknownStyleException ex ) {
-			// ignore
-		}
-
-		Object oldValue;
-		switch( key ) {
-			// BasicMenuItemUI
-			case "selectionBackground": oldValue = selectionBackground; selectionBackground = (Color) value; return oldValue;
-			case "selectionForeground": oldValue = selectionForeground; selectionForeground = (Color) value; return oldValue;
-			case "disabledForeground": oldValue = disabledForeground; disabledForeground = (Color) value; return oldValue;
-			case "acceleratorForeground": oldValue = acceleratorForeground; acceleratorForeground = (Color) value; return oldValue;
-			case "acceleratorSelectionForeground": oldValue = acceleratorSelectionForeground; acceleratorSelectionForeground = (Color) value; return oldValue;
-		}
-
-		return FlatStylingSupport.applyToAnnotatedObjectOrComponent( this, menuItem, key, value );
+		return FlatMenuItemUI.applyStyleProperty( menuItem, this, renderer, key, value );
 	}
 
 	/** @since 2 */
 	@Override
 	public Map<String, Class<?>> getStyleableInfos( JComponent c ) {
-		return FlatMenuItemUI.getStyleableInfos( renderer );
+		return FlatMenuItemUI.getStyleableInfos( this, renderer );
+	}
+
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatMenuItemUI.getStyleableValue( this, renderer, key );
+	}
+
+	/** @since 2.5 */
+	@Override
+	public MethodHandles.Lookup getLookupForStyling() {
+		// MethodHandles.lookup() is caller sensitive and must be invoked in this class,
+		// otherwise it is not possible to access protected fields in JRE superclass
+		return MethodHandles.lookup();
 	}
 
 	@Override
@@ -216,6 +226,8 @@ public class FlatMenuUI
 		extends FlatMenuItemRenderer
 	{
 		protected Color hoverBackground = UIManager.getColor( "MenuBar.hoverBackground" );
+		protected Color menuBarSelectionBackground = UIManager.getColor( "MenuBar.selectionBackground" );
+		protected Color menuBarSelectionForeground = UIManager.getColor( "MenuBar.selectionForeground" );
 		protected Color menuBarUnderlineSelectionBackground = FlatUIUtils.getUIColor( "MenuBar.underlineSelectionBackground", underlineSelectionBackground );
 		protected Color menuBarUnderlineSelectionColor = FlatUIUtils.getUIColor( "MenuBar.underlineSelectionColor", underlineSelectionColor );
 		protected int menuBarUnderlineSelectionHeight = FlatUIUtils.getUIInt( "MenuBar.underlineSelectionHeight", underlineSelectionHeight );
@@ -231,6 +243,10 @@ public class FlatMenuUI
 			if( ((JMenu)menuItem).isTopLevelMenu() ) {
 				if( isUnderlineSelection() )
 					selectionBackground = getStyleFromMenuBarUI( ui -> ui.underlineSelectionBackground, menuBarUnderlineSelectionBackground );
+				else {
+					selectionBackground = getStyleFromMenuBarUI( ui -> ui.selectionBackground,
+						menuBarSelectionBackground != null ? menuBarSelectionBackground : selectionBackground );
+				}
 
 				ButtonModel model = menuItem.getModel();
 				if( model.isRollover() && !model.isArmed() && !model.isSelected() && model.isEnabled() ) {
@@ -243,6 +259,16 @@ public class FlatMenuUI
 			super.paintBackground( g, selectionBackground );
 		}
 
+		@Override
+		protected void paintText( Graphics g, Rectangle textRect, String text, Color selectionForeground, Color disabledForeground ) {
+			if( ((JMenu)menuItem).isTopLevelMenu() && !isUnderlineSelection() ) {
+				selectionForeground = getStyleFromMenuBarUI( ui -> ui.selectionForeground,
+					menuBarSelectionForeground != null ? menuBarSelectionForeground : selectionForeground );
+			}
+
+			super.paintText( g, textRect, text, selectionForeground, disabledForeground );
+		}
+
 		@Override
 		protected void paintUnderlineSelection( Graphics g, Color underlineSelectionColor, int underlineSelectionHeight ) {
 			if( ((JMenu)menuItem).isTopLevelMenu() ) {

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

@@ -0,0 +1,109 @@
+/*
+ * Copyright 2022 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 java.io.File;
+import com.formdev.flatlaf.FlatSystemProperties;
+import com.formdev.flatlaf.util.LoggingFacade;
+import com.formdev.flatlaf.util.NativeLibrary;
+import com.formdev.flatlaf.util.SystemInfo;
+
+/**
+ * Helper class to load FlatLaf native library (.dll, .so or .dylib),
+ * if available for current operating system and CPU architecture.
+ *
+ * @author Karl Tauber
+ * @since 2.3
+ */
+class FlatNativeLibrary
+{
+	private static NativeLibrary nativeLibrary;
+
+	/**
+	 * Loads native library (if available) and returns whether loaded successfully.
+	 * Returns {@code false} if no native library is available.
+	 */
+	static synchronized boolean isLoaded() {
+		initialize();
+		return (nativeLibrary != null) ? nativeLibrary.isLoaded() : false;
+	}
+
+	private static void initialize() {
+		if( nativeLibrary != null )
+			return;
+
+		String libraryName;
+		if( SystemInfo.isWindows_10_orLater && (SystemInfo.isX86 || SystemInfo.isX86_64) ) {
+			// Windows: requires Windows 10 (x86 or x86_64)
+
+			libraryName = "flatlaf-windows-x86";
+			if( SystemInfo.isX86_64 )
+				libraryName += "_64";
+
+			// load jawt native library
+			if( !SystemInfo.isJava_9_orLater ) {
+				// In Java 8, load jawt.dll (part of JRE) explicitly because it
+				// is not found when running application with <jdk>/bin/java.exe.
+				// When using <jdk>/jre/bin/java.exe, it is found.
+				// jawt.dll is located in <jdk>/jre/bin/.
+				// Java 9 and later do not have this problem.
+				loadJAWT();
+			}
+		} else if( SystemInfo.isLinux && SystemInfo.isX86_64 ) {
+			// Linux: requires x86_64
+
+			libraryName = "flatlaf-linux-x86_64";
+
+			// Load jawt.so (part of JRE) explicitly because it is not found
+			// in all Java versions/distributions.
+			// E.g. not found in Java 13 and later from openjdk.java.net.
+			// There seems to be also differences between distributions.
+			// E.g. Adoptium Java 17 does not need this, but Java 17 from openjdk.java.net does.
+			loadJAWT();
+		} else
+			return; // no native library available for current OS or CPU architecture
+
+		// load native library
+		nativeLibrary = createNativeLibrary( libraryName );
+	}
+
+	private static NativeLibrary createNativeLibrary( String libraryName ) {
+		String libraryPath = System.getProperty( FlatSystemProperties.NATIVE_LIBRARY_PATH );
+		if( libraryPath != null ) {
+			File libraryFile = new File( libraryPath, System.mapLibraryName( libraryName ) );
+			if( libraryFile.exists() )
+				return new NativeLibrary( libraryFile, true );
+			else
+				LoggingFacade.INSTANCE.logSevere( "Did not find external library " + libraryFile + ", using extracted library instead", null );
+		}
+
+		return new NativeLibrary( "com/formdev/flatlaf/natives/" + libraryName, null, true );
+	}
+
+	private static void loadJAWT() {
+		try {
+			System.loadLibrary( "jawt" );
+		} catch( UnsatisfiedLinkError ex ) {
+			// log error only if native library jawt.dll not already loaded
+			String message = ex.getMessage();
+			if( message == null || !message.contains( "already loaded in another classloader" ) )
+				LoggingFacade.INSTANCE.logSevere( null, ex );
+		} catch( Exception ex ) {
+			LoggingFacade.INSTANCE.logSevere( null, ex );
+		}
+	}
+}

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

@@ -0,0 +1,104 @@
+/*
+ * Copyright 2022 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 java.awt.Point;
+import java.awt.Toolkit;
+import java.awt.Window;
+import java.awt.event.MouseEvent;
+import java.awt.geom.AffineTransform;
+import javax.swing.JDialog;
+import javax.swing.JFrame;
+
+/**
+ * Native methods for Linux.
+ * <p>
+ * <b>Note</b>: This is private API. Do not use!
+ *
+ * @author Karl Tauber
+ * @since 2.5
+ */
+class FlatNativeLinuxLibrary
+{
+	static boolean isLoaded() {
+		return FlatNativeLibrary.isLoaded();
+	}
+
+	// direction for _NET_WM_MOVERESIZE message
+	// see https://specifications.freedesktop.org/wm-spec/wm-spec-latest.html
+	static final int MOVE = 8;
+
+	private static Boolean isXWindowSystem;
+
+	private static boolean isXWindowSystem() {
+		if( isXWindowSystem == null )
+			isXWindowSystem = Toolkit.getDefaultToolkit().getClass().getName().endsWith( ".XToolkit" );
+		return isXWindowSystem;
+	}
+
+	static boolean isWMUtilsSupported( Window window ) {
+		return hasCustomDecoration( window ) && isXWindowSystem() && isLoaded();
+	}
+
+	static boolean moveOrResizeWindow( Window window, MouseEvent e, int direction ) {
+		Point pt = scale( window, e.getLocationOnScreen() );
+		return xMoveOrResizeWindow( window, pt.x, pt.y, direction );
+
+/*
+		try {
+			Class<?> cls = Class.forName( "com.formdev.flatlaf.natives.jna.linux.X11WmUtils" );
+			java.lang.reflect.Method m = cls.getMethod( "xMoveOrResizeWindow", Window.class, int.class, int.class, int.class );
+			return (Boolean) m.invoke( null, window, pt.x, pt.y, direction );
+		} catch (Exception ex) {
+			ex.printStackTrace();
+			return false;
+		}
+*/
+	}
+
+	static boolean showWindowMenu( Window window, MouseEvent e ) {
+		Point pt = scale( window, e.getLocationOnScreen() );
+		return xShowWindowMenu( window, pt.x, pt.y );
+
+/*
+		try {
+			Class<?> cls = Class.forName( "com.formdev.flatlaf.natives.jna.linux.X11WmUtils" );
+			java.lang.reflect.Method m = cls.getMethod( "xShowWindowMenu", Window.class, int.class, int.class );
+			return (Boolean) m.invoke( null, window, pt.x, pt.y );
+		} catch (Exception ex) {
+			ex.printStackTrace();
+			return false;
+		}
+*/
+	}
+
+	private static Point scale( Window window, Point pt ) {
+		AffineTransform transform = window.getGraphicsConfiguration().getDefaultTransform();
+		int x = (int) Math.round( pt.x * transform.getScaleX() );
+		int y = (int) Math.round( pt.y * transform.getScaleY() );
+		return new Point( x, y );
+	}
+
+	// X Window System
+	private static native boolean xMoveOrResizeWindow( Window window, int x, int y, int direction );
+	private static native boolean xShowWindowMenu( Window window, int x, int y );
+
+	private static boolean hasCustomDecoration( Window window ) {
+		return (window instanceof JFrame && JFrame.isDefaultLookAndFeelDecorated() && ((JFrame)window).isUndecorated()) ||
+			(window instanceof JDialog && JDialog.isDefaultLookAndFeelDecorated() && ((JDialog)window).isUndecorated());
+	}
+}

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

@@ -42,11 +42,13 @@ import com.formdev.flatlaf.util.SystemInfo;
 public class FlatNativeWindowBorder
 {
 	// can use window decorations if:
-	// - on Windows 10
+	// - on Windows 10 or later
+	// - not if system property "sun.java2d.opengl" is true on Windows 10
 	// - not when running in JetBrains Projector, Webswing or WinPE
 	// - not disabled via system property
 	private static final boolean canUseWindowDecorations =
 		SystemInfo.isWindows_10_orLater &&
+		(SystemInfo.isWindows_11_orLater || !FlatSystemProperties.getBoolean( "sun.java2d.opengl", false )) &&
 		!SystemInfo.isProjector &&
 		!SystemInfo.isWebswing &&
 		!SystemInfo.isWinPE &&

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

@@ -127,6 +127,12 @@ public class FlatPanelUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	@Override
 	public void update( Graphics g, JComponent c ) {
 		// fill background

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

@@ -23,6 +23,7 @@ import java.awt.Toolkit;
 import java.awt.event.KeyAdapter;
 import java.awt.event.KeyEvent;
 import java.awt.event.KeyListener;
+import java.beans.PropertyChangeEvent;
 import java.util.Map;
 import javax.swing.Action;
 import javax.swing.ActionMap;
@@ -233,6 +234,14 @@ public class FlatPasswordFieldUI
 		return infos;
 	}
 
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		if( key.equals( "capsLockIconColor" ) && capsLockIcon instanceof FlatCapsLockIcon )
+			return ((FlatCapsLockIcon)capsLockIcon).getStyleableValue( key );
+
+		return super.getStyleableValue( c, key );
+	}
+
 	@Override
 	public View create( Element elem ) {
 		return new PasswordView( elem );
@@ -283,6 +292,7 @@ public class FlatPasswordFieldUI
 	protected void installRevealButton() {
 		if( showRevealButton ) {
 			revealButton = createRevealButton();
+			updateRevealButton();
 			installLayout();
 			getComponent().add( revealButton );
 		}
@@ -290,28 +300,64 @@ public class FlatPasswordFieldUI
 
 	/** @since 2 */
 	protected JToggleButton createRevealButton() {
-		JToggleButton button = new JToggleButton( revealIcon );
+		JPasswordField c = (JPasswordField) getComponent();
+		JToggleButton button = new JToggleButton( revealIcon, !c.echoCharIsSet() );
 		button.setName( "PasswordField.revealButton" );
 		prepareLeadingOrTrailingComponent( button );
 		button.putClientProperty( FlatClientProperties.STYLE_CLASS, "inTextField revealButton" );
-		if( FlatClientProperties.clientPropertyBoolean( getComponent(), KEY_REVEAL_SELECTED, false ) ) {
+		if( FlatClientProperties.clientPropertyBoolean( c, KEY_REVEAL_SELECTED, false ) ) {
 			button.setSelected( true );
 			updateEchoChar( true );
 		}
 		button.addActionListener( e -> {
 			boolean selected = button.isSelected();
 			updateEchoChar( selected );
-			getComponent().putClientProperty( KEY_REVEAL_SELECTED, selected );
+			c.putClientProperty( KEY_REVEAL_SELECTED, selected );
 		} );
 		return button;
 	}
 
+	/** @since 2.5 */
+	protected void updateRevealButton() {
+		if( revealButton == null )
+			return;
+
+		JTextComponent c = getComponent();
+		boolean visible = c.isEnabled();
+		if( visible != revealButton.isVisible() ) {
+			revealButton.setVisible( visible );
+			c.revalidate();
+			c.repaint();
+
+			if( !visible ) {
+				revealButton.setSelected( false );
+				updateEchoChar( false );
+				getComponent().putClientProperty( KEY_REVEAL_SELECTED, null );
+			}
+		}
+	}
+
+	@Override
+	protected void propertyChange( PropertyChangeEvent e ) {
+		super.propertyChange( e );
+
+		switch( e.getPropertyName() ) {
+			case "enabled":
+				updateRevealButton();
+				break;
+		}
+	}
+
 	private void updateEchoChar( boolean selected ) {
 		char newEchoChar = selected
 			? 0
 			: (echoChar != null ? echoChar : '*');
 
 		JPasswordField c = (JPasswordField) getComponent();
+		if( newEchoChar == c.getEchoChar() )
+			return;
+
+		// set echo char
 		LookAndFeel.installProperty( c, "echoChar", newEchoChar );
 
 		// check whether was able to set echo char via LookAndFeel.installProperty()

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

@@ -36,7 +36,9 @@ import java.awt.Window;
 import java.awt.event.ComponentEvent;
 import java.awt.event.ComponentListener;
 import java.awt.event.MouseEvent;
-import java.lang.reflect.InvocationTargetException;
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodType;
 import java.lang.reflect.Method;
 import javax.swing.JComponent;
 import javax.swing.JLayeredPane;
@@ -64,8 +66,8 @@ import com.formdev.flatlaf.util.UIScale;
 public class FlatPopupFactory
 	extends PopupFactory
 {
-	private Method java8getPopupMethod;
-	private Method java9getPopupMethod;
+	private MethodHandle java8getPopupMethod;
+	private MethodHandle java9getPopupMethod;
 
 	@Override
 	public Popup getPopup( Component owner, Component contents, int x, int y )
@@ -192,23 +194,25 @@ public class FlatPopupFactory
 	{
 		try {
 			if( SystemInfo.isJava_9_orLater ) {
+				// Java 9: protected Popup getPopup( Component owner, Component contents, int x, int y, boolean isHeavyWeightPopup )
 				if( java9getPopupMethod == null ) {
-					java9getPopupMethod = PopupFactory.class.getDeclaredMethod(
-						"getPopup", Component.class, Component.class, int.class, int.class, boolean.class );
+					MethodType mt = MethodType.methodType( Popup.class, Component.class, Component.class, int.class, int.class, boolean.class );
+					java9getPopupMethod = MethodHandles.lookup().findVirtual( PopupFactory.class, "getPopup", mt );
 				}
 				return (Popup) java9getPopupMethod.invoke( this, owner, contents, x, y, true );
 			} else {
-				// Java 8
+				// Java 8: private Popup getPopup( Component owner, Component contents, int ownerX, int ownerY, int popupType )
 				if( java8getPopupMethod == null ) {
-					java8getPopupMethod = PopupFactory.class.getDeclaredMethod(
+					Method m = PopupFactory.class.getDeclaredMethod(
 						"getPopup", Component.class, Component.class, int.class, int.class, int.class );
-					java8getPopupMethod.setAccessible( true );
+					m.setAccessible( true );
+					java8getPopupMethod = MethodHandles.lookup().unreflect( m );
 				}
 				return (Popup) java8getPopupMethod.invoke( this, owner, contents, x, y, /*HEAVY_WEIGHT_POPUP*/ 2 );
 			}
-		} catch( NoSuchMethodException | SecurityException | IllegalAccessException | InvocationTargetException ex ) {
-			// ignore
-			return null;
+		} catch( Throwable ex ) {
+			// fallback
+			return super.getPopup( owner, contents, x, y );
 		}
 	}
 

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

@@ -66,6 +66,16 @@ public class FlatPopupMenuBorder
 		return infos;
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( String key ) {
+		switch( key ) {
+			case "borderInsets": return getStyleableValue();
+			case "borderColor": return borderColor;
+		}
+		return null;
+	}
+
 	@Override
 	public Color getLineColor() {
 		return (borderColor != null) ? borderColor : super.getLineColor();

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

@@ -130,7 +130,7 @@ public class FlatPopupMenuUI
 
 		LayoutManager layout = popupMenu.getLayout();
 		if( layout == null || layout instanceof UIResource )
-			popupMenu.setLayout( new FlatMenuLayout( popupMenu, BoxLayout.Y_AXIS ) );
+			popupMenu.setLayout( new FlatPopupMenuLayout( popupMenu, BoxLayout.Y_AXIS ) );
 	}
 
 	@Override
@@ -184,6 +184,12 @@ public class FlatPopupMenuUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this, popupMenu.getBorder() );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, popupMenu.getBorder(), key );
+	}
+
 	@Override
 	public Popup getPopup( JPopupMenu popup, int x, int y ) {
 		// do not add scroller to combobox popups or to popups that already have a scroll pane
@@ -230,12 +236,15 @@ public class FlatPopupMenuUI
 		return screenBounds.height - screenInsets.top - screenInsets.bottom;
 	}
 
-	//---- class FlatMenuLayout -----------------------------------------------
+	//---- class FlatPopupMenuLayout ------------------------------------------
 
-	protected static class FlatMenuLayout
+	/**
+	 * @since 2.4
+	 */
+	protected static class FlatPopupMenuLayout
 		extends DefaultMenuLayout
 	{
-		public FlatMenuLayout( Container target, int axis ) {
+		public FlatPopupMenuLayout( Container target, int axis ) {
 			super( target, axis );
 		}
 

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

@@ -160,6 +160,12 @@ public class FlatProgressBarUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	@Override
 	public Dimension getPreferredSize( JComponent c ) {
 		Dimension size = super.getPreferredSize( c );

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

@@ -16,18 +16,20 @@
 
 package com.formdev.flatlaf.ui;
 
-import java.awt.Color;
 import java.awt.Dimension;
 import java.awt.Graphics;
 import java.beans.PropertyChangeListener;
+import java.lang.invoke.MethodHandles;
 import java.util.Map;
 import javax.swing.Icon;
 import javax.swing.JComponent;
 import javax.swing.LookAndFeel;
 import javax.swing.plaf.ComponentUI;
+import javax.swing.plaf.basic.BasicMenuItemUI;
 import javax.swing.plaf.basic.BasicRadioButtonMenuItemUI;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableField;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableLookupProvider;
 import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableUI;
-import com.formdev.flatlaf.ui.FlatStylingSupport.UnknownStyleException;
 import com.formdev.flatlaf.util.LoggingFacade;
 
 /**
@@ -58,9 +60,15 @@ import com.formdev.flatlaf.util.LoggingFacade;
  *
  * @author Karl Tauber
  */
+@StyleableField( cls=BasicMenuItemUI.class, key="selectionBackground" )
+@StyleableField( cls=BasicMenuItemUI.class, key="selectionForeground" )
+@StyleableField( cls=BasicMenuItemUI.class, key="disabledForeground" )
+@StyleableField( cls=BasicMenuItemUI.class, key="acceleratorForeground" )
+@StyleableField( cls=BasicMenuItemUI.class, key="acceleratorSelectionForeground" )
+
 public class FlatRadioButtonMenuItemUI
 	extends BasicRadioButtonMenuItemUI
-	implements StyleableUI
+	implements StyleableUI, StyleableLookupProvider
 {
 	private FlatMenuItemRenderer renderer;
 	private Map<String, Object> oldStyleValues;
@@ -119,29 +127,27 @@ public class FlatRadioButtonMenuItemUI
 
 	/** @since 2 */
 	protected Object applyStyleProperty( String key, Object value ) {
-		try {
-			return renderer.applyStyleProperty( key, value );
-		} catch ( UnknownStyleException ex ) {
-			// ignore
-		}
-
-		Object oldValue;
-		switch( key ) {
-			// BasicMenuItemUI
-			case "selectionBackground": oldValue = selectionBackground; selectionBackground = (Color) value; return oldValue;
-			case "selectionForeground": oldValue = selectionForeground; selectionForeground = (Color) value; return oldValue;
-			case "disabledForeground": oldValue = disabledForeground; disabledForeground = (Color) value; return oldValue;
-			case "acceleratorForeground": oldValue = acceleratorForeground; acceleratorForeground = (Color) value; return oldValue;
-			case "acceleratorSelectionForeground": oldValue = acceleratorSelectionForeground; acceleratorSelectionForeground = (Color) value; return oldValue;
-		}
-
-		return FlatStylingSupport.applyToAnnotatedObjectOrComponent( this, menuItem, key, value );
+		return FlatMenuItemUI.applyStyleProperty( menuItem, this, renderer, key, value );
 	}
 
 	/** @since 2 */
 	@Override
 	public Map<String, Class<?>> getStyleableInfos( JComponent c ) {
-		return FlatMenuItemUI.getStyleableInfos( renderer );
+		return FlatMenuItemUI.getStyleableInfos( this, renderer );
+	}
+
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatMenuItemUI.getStyleableValue( this, renderer, key );
+	}
+
+	/** @since 2.5 */
+	@Override
+	public MethodHandles.Lookup getLookupForStyling() {
+		// MethodHandles.lookup() is caller sensitive and must be invoked in this class,
+		// otherwise it is not possible to access protected fields in JRE superclass
+		return MethodHandles.lookup();
 	}
 
 	@Override

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

@@ -18,12 +18,16 @@ package com.formdev.flatlaf.ui;
 
 import static com.formdev.flatlaf.util.UIScale.scale;
 import java.awt.Color;
+import java.awt.Component;
 import java.awt.Container;
 import java.awt.Dimension;
 import java.awt.Graphics;
 import java.awt.Insets;
 import java.awt.Rectangle;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
 import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
 import java.util.Map;
 import java.util.Objects;
 import javax.swing.AbstractButton;
@@ -31,6 +35,7 @@ import javax.swing.CellRendererPane;
 import javax.swing.Icon;
 import javax.swing.JComponent;
 import javax.swing.LookAndFeel;
+import javax.swing.SwingUtilities;
 import javax.swing.UIManager;
 import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.basic.BasicButtonListener;
@@ -78,7 +83,7 @@ public class FlatRadioButtonUI
 	private Map<String, Object> oldStyleValues;
 
 	public static ComponentUI createUI( JComponent c ) {
-		return FlatUIUtils.canUseSharedUI( c )
+		return FlatUIUtils.canUseSharedUI( c ) && !FlatUIUtils.needsLightAWTPeer( c )
 			? FlatUIUtils.createSharedUI( FlatRadioButtonUI.class, () -> new FlatRadioButtonUI( true ) )
 			: new FlatRadioButtonUI( false );
 	}
@@ -90,11 +95,29 @@ public class FlatRadioButtonUI
 
 	@Override
 	public void installUI( JComponent c ) {
+		if( FlatUIUtils.needsLightAWTPeer( c ) )
+			FlatUIUtils.runWithLightAWTPeerUIDefaults( () -> installUIImpl( c ) );
+		else
+			installUIImpl( c );
+	}
+
+	private void installUIImpl( JComponent c ) {
 		super.installUI( c );
 
+		if( FlatUIUtils.isAWTPeer( c ) )
+			AWTPeerMouseExitedFix.install( c );
+
 		installStyle( (AbstractButton) c );
 	}
 
+	@Override
+	public void uninstallUI( JComponent c ) {
+		super.uninstallUI( c );
+
+		if( FlatUIUtils.isAWTPeer( c ) )
+			AWTPeerMouseExitedFix.uninstall( c );
+	}
+
 	@Override
 	public void installDefaults( AbstractButton b ) {
 		super.installDefaults( b );
@@ -199,6 +222,19 @@ public class FlatRadioButtonUI
 		return infos;
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		// style icon
+		if( key.startsWith( "icon." ) ) {
+			return (icon instanceof FlatCheckBoxIcon)
+				? ((FlatCheckBoxIcon)icon).getStyleableValue( key.substring( "icon.".length() ) )
+				: null;
+		}
+
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	private static final Insets tempInsets = new Insets( 0, 0, 0, 0 );
 
 	@Override
@@ -308,4 +344,69 @@ public class FlatRadioButtonUI
 			FlatRadioButtonUI.this.propertyChange( b, e );
 		}
 	}
+
+	//---- class AWTPeerMouseExitedFix ----------------------------------------
+
+	/**
+	 * Hack for missing mouse-exited event for java.awt.Checkbox on macOS (to fix hover effect).
+	 *
+	 * On macOS, AWT components internally use Swing components.
+	 * This is implemented in class sun.lwawt.LWCheckboxPeer, which uses
+	 * a container component CheckboxDelegate that has a JCheckBox and a JRadioButton
+	 * as children. Only one of them is visible.
+	 *
+	 * The reason that mouse-exited event is not sent to the JCheckBox or JRadioButton
+	 * is that sun.lwawt.LWComponentPeer.createDelegateEvent() uses
+	 * SwingUtilities.getDeepestComponentAt() to find the event target,
+	 * which finds the container component CheckboxDelegate,
+	 * which receives the mouse-exited event.
+	 *
+	 * This class adds listeners and forwards the mouse-exited event
+	 * from CheckboxDelegate to JCheckBox or JRadioButton.
+	 */
+	private static class AWTPeerMouseExitedFix
+		extends MouseAdapter
+		implements PropertyChangeListener
+	{
+		private final JComponent button;
+
+		static void install( JComponent button ) {
+			AWTPeerMouseExitedFix l = new AWTPeerMouseExitedFix( button );
+			button.addPropertyChangeListener( "ancestor", l );
+			Container parent = button.getParent();
+			if( parent != null )
+				parent.addMouseListener( l );
+		}
+
+		static void uninstall( JComponent button ) {
+			for( PropertyChangeListener l : button.getPropertyChangeListeners( "ancestor" ) ) {
+				if( l instanceof AWTPeerMouseExitedFix ) {
+					button.removePropertyChangeListener( "ancestor", l );
+					Container parent = button.getParent();
+					if( parent != null )
+						parent.removeMouseListener( (AWTPeerMouseExitedFix) l );
+					break;
+				}
+			}
+		}
+
+		AWTPeerMouseExitedFix( JComponent button ) {
+			this.button = button;
+		}
+
+		@Override
+		public void propertyChange( PropertyChangeEvent e ) {
+			if( e.getOldValue() instanceof Component )
+				((Component)e.getOldValue()).removeMouseListener( this );
+			if( e.getNewValue() instanceof Component ) {
+				((Component)e.getNewValue()).removeMouseListener( this ); // avoid duplicate listeners
+				((Component)e.getNewValue()).addMouseListener( this );
+			}
+		}
+
+		@Override
+		public void mouseExited( MouseEvent e ) {
+			button.dispatchEvent( SwingUtilities.convertMouseEvent( e.getComponent(), e, button ) );
+		}
+	}
 }

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

@@ -364,6 +364,12 @@ public class FlatRootPaneUI
 			((FlatRootPaneUI)ui).titlePane.isMenuBarEmbedded();
 	}
 
+	/** @since 2.4 */
+	protected static FlatTitlePane getTitlePane( JRootPane rootPane ) {
+		RootPaneUI ui = rootPane.getUI();
+		return ui instanceof FlatRootPaneUI ? ((FlatRootPaneUI)ui).titlePane : null;
+	}
+
 	//---- class FlatRootLayout -----------------------------------------------
 
 	protected class FlatRootLayout

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

@@ -17,6 +17,7 @@
 package com.formdev.flatlaf.ui;
 
 import java.awt.Color;
+import java.awt.Container;
 import java.awt.Dimension;
 import java.awt.Graphics;
 import java.awt.Insets;
@@ -24,6 +25,7 @@ import java.awt.Rectangle;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
 import java.beans.PropertyChangeListener;
+import java.lang.invoke.MethodHandles;
 import java.util.Map;
 import java.util.Objects;
 import javax.swing.InputMap;
@@ -36,9 +38,13 @@ import javax.swing.UIManager;
 import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.basic.BasicScrollBarUI;
 import com.formdev.flatlaf.FlatClientProperties;
+import com.formdev.flatlaf.FlatLaf;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableField;
+import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableLookupProvider;
 import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableUI;
 import com.formdev.flatlaf.util.LoggingFacade;
+import com.formdev.flatlaf.util.SystemInfo;
 import com.formdev.flatlaf.util.UIScale;
 
 /**
@@ -77,9 +83,15 @@ import com.formdev.flatlaf.util.UIScale;
  *
  * @author Karl Tauber
  */
+@StyleableField( cls=BasicScrollBarUI.class, key="track", fieldName="trackColor" )
+@StyleableField( cls=BasicScrollBarUI.class, key="thumb", fieldName="thumbColor" )
+@StyleableField( cls=BasicScrollBarUI.class, key="width", fieldName="scrollBarWidth" )
+@StyleableField( cls=BasicScrollBarUI.class, key="minimumThumbSize" )
+@StyleableField( cls=BasicScrollBarUI.class, key="maximumThumbSize" )
+
 public class FlatScrollBarUI
 	extends BasicScrollBarUI
-	implements StyleableUI
+	implements StyleableUI, StyleableLookupProvider
 {
 	// overrides BasicScrollBarUI.supportsAbsolutePositioning (which is private)
 	@Styleable protected boolean allowsAbsolutePositioning;
@@ -108,6 +120,7 @@ public class FlatScrollBarUI
 	protected boolean hoverThumb;
 
 	private Map<String, Object> oldStyleValues;
+	private boolean isAWTPeer;
 
 	public static ComponentUI createUI( JComponent c ) {
 		return new FlatScrollBarUI();
@@ -221,6 +234,37 @@ public class FlatScrollBarUI
 					}
 					SwingUtilities.replaceUIInputMap( scrollbar, JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, inputMap );
 					break;
+
+				case "ancestor":
+					// check whether scroll bar is used as AWT peer on macOS
+					if( SystemInfo.isMacOS ) {
+						Container p = scrollbar.getParent();
+						for( int i = 0; i < 2 && p != null; i++, p = p.getParent() ) {
+							if( FlatUIUtils.isAWTPeer( p ) ) {
+								// Used to disable hover, which does not work correctly
+								// because scroll bars do not receive mouse exited event.
+								// The scroll pane, including its scroll bars, is not part
+								// of the component hierarchy and does not receive mouse events
+								// directly. Instead LWComponentPeer receives mouse events
+								// and delegates them to peers, but entered/exited events
+								// are sent only for the whole scroll pane.
+								// Exited event is only sent when mouse leaves scroll pane.
+								// If mouse enters/exits scroll bar, no entered/exited events are sent.
+								isAWTPeer = true;
+
+								// if dark theme is active, reinstall using light theme
+								if( FlatLaf.isLafDark() ) {
+									FlatUIUtils.runWithLightAWTPeerUIDefaults( () -> {
+										JScrollBar scrollbar = this.scrollbar;
+										uninstallUI( scrollbar );
+										installUI( scrollbar );
+									} );
+								}
+								break;
+							}
+						}
+					}
+					break;
 			}
 		};
 	}
@@ -246,30 +290,27 @@ public class FlatScrollBarUI
 
 	/** @since 2 */
 	protected Object applyStyleProperty( String key, Object value ) {
-		Object oldValue;
-		switch( key ) {
-			// BasicScrollBarUI
-			case "track": oldValue = trackColor; trackColor = (Color) value; return oldValue;
-			case "thumb": oldValue = thumbColor; thumbColor = (Color) value; return oldValue;
-			case "width": oldValue = scrollBarWidth; scrollBarWidth = (int) value; return oldValue;
-			case "minimumThumbSize": oldValue = minimumThumbSize; minimumThumbSize = (Dimension) value; return oldValue;
-			case "maximumThumbSize": oldValue = maximumThumbSize; maximumThumbSize = (Dimension) value; return oldValue;
-		}
-
 		return FlatStylingSupport.applyToAnnotatedObjectOrComponent( this, scrollbar, key, value );
 	}
 
 	/** @since 2 */
 	@Override
 	public Map<String, Class<?>> getStyleableInfos( JComponent c ) {
-		Map<String, Class<?>> infos = new FlatStylingSupport.StyleableInfosMap<>();
-		infos.put( "track", Color.class );
-		infos.put( "thumb", Color.class );
-		infos.put( "width", int.class );
-		infos.put( "minimumThumbSize", Dimension.class );
-		infos.put( "maximumThumbSize", Dimension.class );
-		FlatStylingSupport.collectAnnotatedStyleableInfos( this, infos );
-		return infos;
+		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
+	}
+
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
+	/** @since 2.5 */
+	@Override
+	public MethodHandles.Lookup getLookupForStyling() {
+		// MethodHandles.lookup() is caller sensitive and must be invoked in this class,
+		// otherwise it is not possible to access protected fields in JRE superclass
+		return MethodHandles.lookup();
 	}
 
 	@Override
@@ -357,7 +398,7 @@ public class FlatScrollBarUI
 		Color trackColor = FlatUIUtils.deriveColor( this.trackColor, c.getBackground() );
 		return (pressed && pressedTrackColor != null)
 			? FlatUIUtils.deriveColor( pressedTrackColor, trackColor )
-			: ((hover && hoverTrackColor != null)
+			: ((hover && hoverTrackColor != null && !isAWTPeer)
 				? FlatUIUtils.deriveColor( hoverTrackColor, trackColor )
 				: trackColor);
 	}
@@ -367,7 +408,7 @@ public class FlatScrollBarUI
 		Color thumbColor = FlatUIUtils.deriveColor( this.thumbColor, trackColor );
 		return (pressed && pressedThumbColor != null)
 			? FlatUIUtils.deriveColor( pressedThumbColor, thumbColor )
-			: ((hover && hoverThumbColor != null)
+			: ((hover && hoverThumbColor != null && !isAWTPeer)
 				? FlatUIUtils.deriveColor( hoverThumbColor, thumbColor )
 				: thumbColor);
 	}

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

@@ -87,6 +87,13 @@ public class FlatScrollPaneUI
 
 	@Override
 	public void installUI( JComponent c ) {
+		if( FlatUIUtils.needsLightAWTPeer( c ) )
+			FlatUIUtils.runWithLightAWTPeerUIDefaults( () -> installUIImpl( c ) );
+		else
+			installUIImpl( c );
+	}
+
+	private void installUIImpl( JComponent c ) {
 		super.installUI( c );
 
 		int focusWidth = UIManager.getInt( "Component.focusWidth" );
@@ -343,6 +350,12 @@ public class FlatScrollPaneUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this, scrollpane.getBorder() );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, scrollpane.getBorder(), key );
+	}
+
 	@Override
 	protected void updateViewport( PropertyChangeEvent e ) {
 		super.updateViewport( e );

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

@@ -170,6 +170,12 @@ public class FlatSeparatorUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	@Override
 	public void paint( Graphics g, JComponent c ) {
 		Graphics2D g2 = (Graphics2D) g.create();

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

@@ -222,6 +222,12 @@ public class FlatSliderUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	@Override
 	public int getBaseline( JComponent c, int width, int height ) {
 		if( c == null )

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

@@ -223,6 +223,12 @@ public class FlatSpinnerUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this, spinner.getBorder() );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, spinner.getBorder(), key );
+	}
+
 	@Override
 	protected JComponent createEditor() {
 		JComponent editor = super.createEditor();

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

@@ -34,6 +34,7 @@ import javax.swing.UIManager;
 import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.basic.BasicSplitPaneDivider;
 import javax.swing.plaf.basic.BasicSplitPaneUI;
+import com.formdev.flatlaf.FlatClientProperties;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
 import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableUI;
 import com.formdev.flatlaf.ui.FlatStylingSupport.UnknownStyleException;
@@ -52,6 +53,13 @@ import com.formdev.flatlaf.util.UIScale;
  * @uiDefault SplitPaneDivider.border					Border
  * @uiDefault SplitPaneDivider.draggingColor			Color	only used if continuousLayout is false
  *
+ * <!-- BasicSplitPaneDivider -->
+ *
+ * @uiDefault SplitPane.oneTouchButtonSize				int
+ * @uiDefault SplitPane.oneTouchButtonOffset			int
+ * @uiDefault SplitPane.centerOneTouchButtons			boolean
+ * @uiDefault SplitPane.supportsOneTouchButtons			boolean	optional; default is true
+ *
  * <!-- JSplitPane -->
  *
  * @uiDefault SplitPane.continuousLayout				boolean
@@ -175,6 +183,17 @@ public class FlatSplitPaneUI
 		return infos;
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		if( divider instanceof FlatSplitPaneDivider ) {
+			Object value = ((FlatSplitPaneDivider)divider).getStyleableValue( key );
+			if( value != null )
+				return value;
+		}
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	//---- class FlatSplitPaneDivider -----------------------------------------
 
 	protected class FlatSplitPaneDivider
@@ -192,20 +211,21 @@ public class FlatSplitPaneUI
 			setLayout( new FlatDividerLayout() );
 		}
 
-		/**
-		 * @since 2
-		 */
+		/** @since 2 */
 		protected Object applyStyleProperty( String key, Object value ) {
 			return FlatStylingSupport.applyToAnnotatedObject( this, key, value );
 		}
 
-		/**
-		 * @since 2
-		 */
+		/** @since 2 */
 		public Map<String, Class<?>> getStyleableInfos() {
 			return FlatStylingSupport.getAnnotatedStyleableInfos( this );
 		}
 
+		/** @since 2.5 */
+		public Object getStyleableValue( String key ) {
+			return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+		}
+
 		void updateStyle() {
 			if( leftButton instanceof FlatOneTouchButton )
 				((FlatOneTouchButton)leftButton).updateStyle();
@@ -235,7 +255,7 @@ public class FlatSplitPaneUI
 			switch( e.getPropertyName() ) {
 				case JSplitPane.DIVIDER_LOCATION_PROPERTY:
 					// necessary to show/hide one-touch buttons on expand/collapse
-					revalidate();
+					doLayout();
 					break;
 			}
 		}
@@ -345,7 +365,7 @@ public class FlatSplitPaneUI
 				if( leftButton == null || rightButton == null || !splitPane.isOneTouchExpandable() )
 					return;
 
-				// increase side of buttons, which makes them easier to hit by the user
+				// increase size of buttons, which makes them easier to hit by the user
 				// and avoids cut arrows at small divider sizes
 				int extraSize = UIScale.scale( 4 );
 				if( orientation == JSplitPane.VERTICAL_SPLIT ) {
@@ -360,10 +380,19 @@ public class FlatSplitPaneUI
 
 				// hide buttons if not applicable
 				boolean leftCollapsed = isLeftCollapsed();
-				if( leftCollapsed )
+				boolean rightCollapsed = isRightCollapsed();
+				if( leftCollapsed || rightCollapsed ) {
+					leftButton.setVisible( !leftCollapsed );
+					rightButton.setVisible( !rightCollapsed );
+				} else {
+					Object expandableSide = splitPane.getClientProperty( FlatClientProperties.SPLIT_PANE_EXPANDABLE_SIDE );
+					leftButton.setVisible( expandableSide == null || !FlatClientProperties.SPLIT_PANE_EXPANDABLE_SIDE_LEFT.equals( expandableSide ) );
+					rightButton.setVisible( expandableSide == null || !FlatClientProperties.SPLIT_PANE_EXPANDABLE_SIDE_RIGHT.equals( expandableSide ) );
+				}
+
+				// move right button if left button is hidden
+				if( !leftButton.isVisible() )
 					rightButton.setLocation( leftButton.getLocation() );
-				leftButton.setVisible( !leftCollapsed );
-				rightButton.setVisible( !isRightCollapsed() );
 			}
 		}
 	}

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

@@ -18,9 +18,11 @@ package com.formdev.flatlaf.ui;
 
 import java.beans.PropertyChangeListener;
 import java.lang.annotation.ElementType;
+import java.lang.annotation.Repeatable;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
+import java.lang.invoke.MethodHandles;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
@@ -63,15 +65,55 @@ public class FlatStylingSupport
 		Class<?> type() default Void.class;
 	}
 
+	/**
+	 * Indicates that a field in the specified (super) class
+	 * is intended to be used by FlatLaf styling support.
+	 * <p>
+	 * Use this annotation, instead of {@link Styleable}, to style fields
+	 * in superclasses, where it is not possible to use {@link Styleable}.
+	 * <p>
+	 * Classes using this annotation may implement {@link StyleableLookupProvider}
+	 * to give access to protected fields (in JRE) in modular applications.
+	 *
+	 * @since 2.5
+	 */
+	@Target(ElementType.TYPE)
+	@Retention(RetentionPolicy.RUNTIME)
+	@Repeatable(StyleableFields.class)
+	public @interface StyleableField {
+		Class<?> cls();
+		String key();
+		String fieldName() default "";
+	}
+
+	/**
+	 * Container annotation for {@link StyleableField}.
+	 *
+	 * @since 2.5
+	 */
+	@Target(ElementType.TYPE)
+	@Retention(RetentionPolicy.RUNTIME)
+	public @interface StyleableFields {
+		StyleableField[] value();
+	}
+
+
 	/** @since 2 */
 	public interface StyleableUI {
 		Map<String, Class<?>> getStyleableInfos( JComponent c );
+		/** @since 2.5 */ Object getStyleableValue( JComponent c, String key );
 	}
 
 	/** @since 2 */
 	public interface StyleableBorder {
 		Object applyStyleProperty( String key, Object value );
 		Map<String, Class<?>> getStyleableInfos();
+		/** @since 2.5 */ Object getStyleableValue( String key );
+	}
+
+	/** @since 2.5 */
+	public interface StyleableLookupProvider {
+		MethodHandles.Lookup getLookupForStyling();
 	}
 
 
@@ -365,21 +407,25 @@ public class FlatStylingSupport
 	public static Object applyToAnnotatedObject( Object obj, String key, Object value )
 		throws UnknownStyleException, IllegalArgumentException
 	{
-		String fieldName = key;
-		int dotIndex = key.indexOf( '.' );
-		if( dotIndex >= 0 ) {
-			// remove first dot in key and change subsequent character to uppercase
-			fieldName = key.substring( 0, dotIndex )
-				+ Character.toUpperCase( key.charAt( dotIndex + 1 ) )
-				+ key.substring( dotIndex + 2 );
-		}
+		String fieldName = keyToFieldName( key );
 
 		return applyToField( obj, fieldName, key, value, field -> {
 			Styleable styleable = field.getAnnotation( Styleable.class );
-			return styleable != null && styleable.dot() == (dotIndex >= 0);
+			return styleable != null && styleable.dot() == (fieldName != key);
 		} );
 	}
 
+	private static String keyToFieldName( String key ) {
+		int dotIndex = key.indexOf( '.' );
+		if( dotIndex < 0 )
+			return key;
+
+		// remove first dot in key and change subsequent character to uppercase
+		return key.substring( 0, dotIndex )
+			+ Character.toUpperCase( key.charAt( dotIndex + 1 ) )
+			+ key.substring( dotIndex + 2 );
+	}
+
 	/**
 	 * Applies the given value to a field of the given object.
 	 *
@@ -405,26 +451,17 @@ public class FlatStylingSupport
 		for(;;) {
 			try {
 				Field f = cls.getDeclaredField( fieldName );
-				if( predicate == null || predicate.test( f ) ) {
-					if( !isValidField( f ) )
-						throw new IllegalArgumentException( "field '" + cls.getName() + "." + fieldName + "' is final or static" );
-
-					try {
-						// necessary to access protected fields in other packages
-						f.setAccessible( true );
-
-						// get old value and set new value
-						Object oldValue = f.get( obj );
-						f.set( obj, convertToEnum( value, f.getType() ) );
-						return oldValue;
-					} catch( IllegalAccessException ex ) {
-						throw new IllegalArgumentException( "failed to access field '" + cls.getName() + "." + fieldName + "'", ex );
-					}
-				}
+				if( predicate == null || predicate.test( f ) )
+					return applyToField( f, obj, value, false );
 			} catch( NoSuchFieldException ex ) {
 				// field not found in class --> try superclass
 			}
 
+			for( StyleableField styleableField : cls.getAnnotationsByType( StyleableField.class ) ) {
+				if( key.equals( styleableField.key() ) )
+					return applyToField( getStyleableField( styleableField ), obj, value, true );
+			}
+
 			cls = cls.getSuperclass();
 			if( cls == null )
 				throw new UnknownStyleException( key );
@@ -437,11 +474,83 @@ public class FlatStylingSupport
 		}
 	}
 
+	private static Object applyToField( Field f, Object obj, Object value, boolean useMethodHandles ) {
+		checkValidField( f );
+
+		if( useMethodHandles && obj instanceof StyleableLookupProvider ) {
+			try {
+				// use method handles to access protected fields in JRE in modular applications
+				MethodHandles.Lookup lookup = ((StyleableLookupProvider)obj).getLookupForStyling();
+
+				// get old value and set new value
+				Object oldValue = lookup.unreflectGetter( f ).invoke( obj );
+				lookup.unreflectSetter( f ).invoke( obj, convertToEnum( value, f.getType() ) );
+				return oldValue;
+			} catch( Throwable ex ) {
+				throw newFieldAccessFailed( f, ex );
+			}
+		}
+
+		try {
+			// necessary to access protected fields in other packages
+			f.setAccessible( true );
+
+			// get old value and set new value
+			Object oldValue = f.get( obj );
+			f.set( obj, convertToEnum( value, f.getType() ) );
+			return oldValue;
+		} catch( IllegalAccessException ex ) {
+			throw newFieldAccessFailed( f, ex );
+		}
+	}
+
+	private static Object getFieldValue( Field f, Object obj, boolean useMethodHandles ) {
+		checkValidField( f );
+
+		if( useMethodHandles && obj instanceof StyleableLookupProvider ) {
+			// use method handles to access protected fields in JRE in modular applications
+			try {
+				MethodHandles.Lookup lookup = ((StyleableLookupProvider)obj).getLookupForStyling();
+				return lookup.unreflectGetter( f ).invoke( obj );
+			} catch( Throwable ex ) {
+				throw newFieldAccessFailed( f, ex );
+			}
+		}
+
+		try {
+			f.setAccessible( true );
+			return f.get( obj );
+		} catch( IllegalAccessException ex ) {
+			throw newFieldAccessFailed( f, ex );
+		}
+	}
+
+	private static IllegalArgumentException newFieldAccessFailed( Field f, Throwable ex ) {
+		return new IllegalArgumentException( "failed to access field '" + f.getDeclaringClass().getName() + "." + f.getName() + "'", ex );
+	}
+
+	private static void checkValidField( Field f ) {
+		if( !isValidField( f ) )
+			throw new IllegalArgumentException( "field '" + f.getDeclaringClass().getName() + "." + f.getName() + "' is final or static" );
+	}
+
 	private static boolean isValidField( Field f ) {
 		int modifiers = f.getModifiers();
 		return (modifiers & (Modifier.FINAL|Modifier.STATIC)) == 0 && !f.isSynthetic();
 	}
 
+	private static Field getStyleableField( StyleableField styleableField ) {
+		String fieldName = styleableField.fieldName();
+		if( fieldName.isEmpty() )
+			fieldName = styleableField.key();
+
+		try {
+			return styleableField.cls().getDeclaredField( fieldName );
+		} catch( NoSuchFieldException ex ) {
+			throw new IllegalArgumentException( "field '" + styleableField.cls().getName() + "." + fieldName + "' not found", ex );
+		}
+	}
+
 	/**
 	 * Applies the given value to a property of the given object.
 	 * Works only for properties that have public getter and setter methods.
@@ -628,6 +737,7 @@ public class FlatStylingSupport
 		Class<?> cls = obj.getClass();
 
 		for(;;) {
+			// find fields annotated with 'Styleable'
 			for( Field f : cls.getDeclaredFields() ) {
 				if( !isValidField( f ) )
 					continue;
@@ -666,6 +776,20 @@ public class FlatStylingSupport
 				infos.put( name, type );
 			}
 
+			// get fields specified in 'StyleableField' annotation
+			for( StyleableField styleableField : cls.getAnnotationsByType( StyleableField.class ) ) {
+				String name = styleableField.key();
+
+				// for the case that the same field name is used in a class and in
+				// one of its superclasses, do not process field in superclass
+				if( processedFields.contains( name ) )
+					continue;
+				processedFields.add( name );
+
+				Field f = getStyleableField( styleableField );
+				infos.put( name, f.getType() );
+			}
+
 			cls = cls.getSuperclass();
 			if( cls == null )
 				return;
@@ -686,6 +810,52 @@ public class FlatStylingSupport
 			infos.put( keyPrefix.concat( e.getKey() ), e.getValue() );
 	}
 
+	public static Object getAnnotatedStyleableValue( Object obj, String key ) {
+		String fieldName = keyToFieldName( key );
+		Class<?> cls = obj.getClass();
+
+		for(;;) {
+			try {
+				// find field annotated with 'Styleable'
+				Field f = cls.getDeclaredField( fieldName );
+				Styleable styleable = f.getAnnotation( Styleable.class );
+				if( styleable != null ) {
+					if( styleable.dot() != (fieldName != key) )
+						throw new IllegalArgumentException( "'Styleable.dot' on field '" + fieldName + "' does not match key '" + key + "'" );
+					if( styleable.type() != Void.class )
+						throw new IllegalArgumentException( "'Styleable.type' on field '" + fieldName + "' not supported" );
+
+					return getFieldValue( f, obj, false );
+				}
+			} catch( NoSuchFieldException ex ) {
+				// field not found in class --> try superclass
+			}
+
+			// find field specified in 'StyleableField' annotation
+			for( StyleableField styleableField : cls.getAnnotationsByType( StyleableField.class ) ) {
+				if( key.equals( styleableField.key() ) )
+					return getFieldValue( getStyleableField( styleableField ), obj, true );
+			}
+
+			cls = cls.getSuperclass();
+			if( cls == null )
+				return null;
+
+			String superclassName = cls.getName();
+			if( superclassName.startsWith( "java." ) || superclassName.startsWith( "javax." ) )
+				return null;
+		}
+	}
+
+	public static Object getAnnotatedStyleableValue( Object obj, Border border, String key ) {
+		if( border instanceof StyleableBorder ) {
+			Object value = ((StyleableBorder)border).getStyleableValue( key );
+			if( value != null )
+				return value;
+		}
+		return getAnnotatedStyleableValue( obj, key );
+	}
+
 	//---- class UnknownStyleException ----------------------------------------
 
 	public static class UnknownStyleException

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

@@ -59,6 +59,7 @@ import java.util.Map;
 import java.util.Set;
 import java.util.function.BiConsumer;
 import java.util.function.IntConsumer;
+import java.util.function.Predicate;
 import javax.accessibility.Accessible;
 import javax.accessibility.AccessibleContext;
 import javax.swing.Action;
@@ -82,10 +83,12 @@ import javax.swing.event.ChangeListener;
 import javax.swing.event.PopupMenuEvent;
 import javax.swing.event.PopupMenuListener;
 import javax.swing.plaf.ComponentUI;
+import javax.swing.plaf.TabbedPaneUI;
 import javax.swing.plaf.UIResource;
 import javax.swing.plaf.basic.BasicTabbedPaneUI;
 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;
@@ -127,6 +130,7 @@ import com.formdev.flatlaf.util.UIScale;
  * @uiDefault TabbedPane.selectedBackground				Color	optional
  * @uiDefault TabbedPane.selectedForeground				Color
  * @uiDefault TabbedPane.underlineColor					Color
+ * @uiDefault TabbedPane.inactiveUnderlineColor			Color
  * @uiDefault TabbedPane.disabledUnderlineColor			Color
  * @uiDefault TabbedPane.hoverColor						Color
  * @uiDefault TabbedPane.focusColor						Color
@@ -141,7 +145,7 @@ import com.formdev.flatlaf.util.UIScale;
  * @uiDefault TabbedPane.showTabSeparators				boolean
  * @uiDefault TabbedPane.tabSeparatorsFullHeight		boolean
  * @uiDefault TabbedPane.hasFullBorder					boolean
- * @uiDefault TabbedPane.activeTabBorder				boolean
+ * @uiDefault TabbedPane.rotateTabRuns					boolean
  *
  * @uiDefault TabbedPane.tabLayoutPolicy				String	wrap (default) or scroll
  * @uiDefault TabbedPane.tabType						String	underlined (default) or card
@@ -198,6 +202,7 @@ public class FlatTabbedPaneUI
 	@Styleable protected Color selectedBackground;
 	@Styleable protected Color selectedForeground;
 	@Styleable protected Color underlineColor;
+	/** @since 2.2 */ @Styleable protected Color inactiveUnderlineColor;
 	@Styleable protected Color disabledUnderlineColor;
 	@Styleable protected Color hoverColor;
 	@Styleable protected Color focusColor;
@@ -215,6 +220,7 @@ public class FlatTabbedPaneUI
 	@Styleable protected boolean tabSeparatorsFullHeight;
 	@Styleable protected boolean hasFullBorder;
 	@Styleable protected boolean tabsOpaque = true;
+	/** @since 2.5 */ @Styleable protected boolean rotateTabRuns = true;
 
 	@Styleable(type=String.class) private int tabType;
 	@Styleable(type=String.class) private int tabsPopupPolicy;
@@ -288,6 +294,7 @@ public class FlatTabbedPaneUI
 
 		super.installUI( c );
 
+		FlatSelectedTabRepainter.install();
 		installStyle();
 	}
 
@@ -318,6 +325,7 @@ public class FlatTabbedPaneUI
 		selectedBackground = UIManager.getColor( "TabbedPane.selectedBackground" );
 		selectedForeground = UIManager.getColor( "TabbedPane.selectedForeground" );
 		underlineColor = UIManager.getColor( "TabbedPane.underlineColor" );
+		inactiveUnderlineColor = FlatUIUtils.getUIColor( "TabbedPane.inactiveUnderlineColor", underlineColor );
 		disabledUnderlineColor = UIManager.getColor( "TabbedPane.disabledUnderlineColor" );
 		hoverColor = UIManager.getColor( "TabbedPane.hoverColor" );
 		focusColor = UIManager.getColor( "TabbedPane.focusColor" );
@@ -335,6 +343,7 @@ public class FlatTabbedPaneUI
 		tabSeparatorsFullHeight = UIManager.getBoolean( "TabbedPane.tabSeparatorsFullHeight" );
 		hasFullBorder = UIManager.getBoolean( "TabbedPane.hasFullBorder" );
 		tabsOpaque = UIManager.getBoolean( "TabbedPane.tabsOpaque" );
+		rotateTabRuns = FlatUIUtils.getUIBoolean( "TabbedPane.rotateTabRuns", true );
 
 		tabType = parseTabType( UIManager.getString( "TabbedPane.tabType" ) );
 		tabsPopupPolicy = parseTabsPopupPolicy( UIManager.getString( "TabbedPane.tabsPopupPolicy" ) );
@@ -385,6 +394,7 @@ public class FlatTabbedPaneUI
 		selectedBackground = null;
 		selectedForeground = null;
 		underlineColor = null;
+		inactiveUnderlineColor = null;
 		disabledUnderlineColor = null;
 		hoverColor = null;
 		focusColor = null;
@@ -679,6 +689,76 @@ public class FlatTabbedPaneUI
 		return infos;
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		// close icon
+		if( key.startsWith( "close" ) ) {
+			return (closeIcon instanceof FlatTabbedPaneCloseIcon)
+				? ((FlatTabbedPaneCloseIcon)closeIcon).getStyleableValue( key )
+				: null;
+		}
+
+		switch( key ) {
+			// BasicTabbedPaneUI
+			case "tabInsets":		return tabInsets;
+			case "tabAreaInsets":	return tabAreaInsets;
+			case "textIconGap":		return textIconGapUnscaled;
+
+			// FlatTabbedPaneUI
+			case "tabType":
+				switch( tabType ) {
+					default:
+					case TAB_TYPE_UNDERLINED:	return TABBED_PANE_TAB_TYPE_UNDERLINED;
+					case TAB_TYPE_CARD:			return TABBED_PANE_TAB_TYPE_CARD;
+				}
+
+			case "tabsPopupPolicy":
+				switch( tabsPopupPolicy ) {
+					default:
+					case AS_NEEDED:				return TABBED_PANE_POLICY_AS_NEEDED;
+					case NEVER:					return TABBED_PANE_POLICY_NEVER;
+				}
+
+			case "scrollButtonsPolicy":
+				switch( scrollButtonsPolicy ) {
+					default:
+					case AS_NEEDED_SINGLE:		return TABBED_PANE_POLICY_AS_NEEDED_SINGLE;
+					case AS_NEEDED:				return TABBED_PANE_POLICY_AS_NEEDED;
+					case NEVER:					return TABBED_PANE_POLICY_NEVER;
+				}
+
+			case "scrollButtonsPlacement":
+				switch( scrollButtonsPlacement ) {
+					default:
+					case BOTH:					return TABBED_PANE_PLACEMENT_BOTH;
+					case TRAILING:				return TABBED_PANE_PLACEMENT_TRAILING;
+				}
+
+			case "tabAreaAlignment":	return alignmentToString( tabAreaAlignment, TABBED_PANE_ALIGN_LEADING );
+			case "tabAlignment":			return alignmentToString( tabAlignment, TABBED_PANE_ALIGN_CENTER );
+
+			case "tabWidthMode":
+				switch( tabWidthMode ) {
+					default:
+					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 "tabIconPlacement":
+				switch( tabIconPlacement ) {
+					default:
+					case LEADING:				return "leading";
+					case TRAILING:				return "trailing";
+					case TOP:					return "top";
+					case BOTTOM:				return "bottom";
+				}
+		}
+
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	protected void setRolloverTab( int x, int y ) {
 		setRolloverTab( tabForCoordinate( tabPane, x, y ) );
 	}
@@ -733,7 +813,6 @@ public class FlatTabbedPaneUI
 
 		// increase size of repaint region to include part of content border
 		if( contentSeparatorHeight > 0 &&
-			getTabType() == TAB_TYPE_CARD &&
 			clientPropertyBoolean( tabPane, TABBED_PANE_SHOW_CONTENT_SEPARATOR, true ) )
 		{
 			int sh = scale( contentSeparatorHeight );
@@ -1015,7 +1094,7 @@ public class FlatTabbedPaneUI
 
 		// paint selection indicator
 		if( isSelected )
-			paintTabSelection( g, tabPlacement, x, y, w, h );
+			paintTabSelection( g, tabPlacement, tabIndex, x, y, w, h );
 
 		if( tabPane.getTabComponentAt( tabIndex ) != null )
 			return;
@@ -1204,12 +1283,19 @@ public class FlatTabbedPaneUI
 		}
 	}
 
-	protected void paintTabSelection( Graphics g, int tabPlacement, int x, int y, int w, int h ) {
-		g.setColor( tabPane.isEnabled() ? underlineColor : disabledUnderlineColor );
+	protected void paintTabSelection( Graphics g, int tabPlacement, int tabIndex, int x, int y, int w, int h ) {
+		g.setColor( tabPane.isEnabled()
+			? (isTabbedPaneOrChildFocused() ? underlineColor : inactiveUnderlineColor)
+			: disabledUnderlineColor );
 
 		// paint underline selection
 		boolean atBottom = (getTabType() != TAB_TYPE_CARD);
-		Insets contentInsets = getContentBorderInsets( tabPlacement );
+		Insets contentInsets = atBottom
+			? ((!rotateTabRuns && runCount > 1 && !isScrollTabLayout() && getRunForTab( tabPane.getTabCount(), tabIndex ) > 0)
+				? new Insets( 0, 0, 0, 0 )
+				: getContentBorderInsets( tabPlacement ))
+			: null;
+
 		int tabSelectionHeight = scale( atBottom ? this.tabSelectionHeight : cardTabSelectionHeight );
 		int sx, sy;
 		switch( tabPlacement ) {
@@ -1236,6 +1322,23 @@ public class FlatTabbedPaneUI
 		}
 	}
 
+	/** @since 2.2 */
+	@SuppressWarnings( "unchecked" )
+	protected boolean isTabbedPaneOrChildFocused() {
+		KeyboardFocusManager keyboardFocusManager = KeyboardFocusManager.getCurrentKeyboardFocusManager();
+
+		Object value = tabPane.getClientProperty( FlatClientProperties.COMPONENT_FOCUS_OWNER );
+		if( value instanceof Predicate ) {
+			return ((Predicate<JComponent>)value).test( tabPane ) &&
+				FlatUIUtils.isInActiveWindow( tabPane, keyboardFocusManager.getActiveWindow() );
+		}
+
+		Component focusOwner = keyboardFocusManager.getPermanentFocusOwner();
+		return focusOwner != null &&
+			SwingUtilities.isDescendingFrom( focusOwner, tabPane ) &&
+			FlatUIUtils.isInActiveWindow( focusOwner, keyboardFocusManager.getActiveWindow() );
+	}
+
 	/**
 	 * Actually does nearly the same as super.paintContentBorder() but
 	 *   - not using UIManager.getColor("TabbedPane.contentAreaColor") to be GUI builder friendly
@@ -1351,7 +1454,7 @@ public class FlatTabbedPaneUI
 			else
 				g.clipRect( 0, vr.y, tabPane.getWidth(), vr.height );
 
-			paintTabSelection( g, tabPlacement, tabRect.x, tabRect.y, tabRect.width, tabRect.height );
+			paintTabSelection( g, tabPlacement, selectedIndex, tabRect.x, tabRect.y, tabRect.width, tabRect.height );
 			g.setClip( oldClip );
 		}
 	}
@@ -1504,6 +1607,11 @@ public class FlatTabbedPaneUI
 		super.getTabRunCount( tabPane );
 	}
 
+	@Override
+	protected boolean shouldRotateTabRuns( int tabPlacement ) {
+		return rotateTabRuns;
+	}
+
 	private boolean isLastInRun( int tabIndex ) {
 		int run = getRunForTab( tabPane.getTabCount(), tabIndex );
 		return lastTabInRun( tabPane.getTabCount(), run ) == tabIndex;
@@ -1659,6 +1767,16 @@ public class FlatTabbedPaneUI
 		}
 	}
 
+	private static String alignmentToString( int value, String defaultValue ) {
+		switch( value ) {
+			case LEADING:		return TABBED_PANE_ALIGN_LEADING;
+			case TRAILING:		return TABBED_PANE_ALIGN_TRAILING;
+			case CENTER:		return TABBED_PANE_ALIGN_CENTER;
+			case FILL:			return TABBED_PANE_ALIGN_FILL;
+			default:			return defaultValue;
+		}
+	}
+
 	protected static int parseTabWidthMode( String str ) {
 		if( str == null )
 			return WIDTH_MODE_PREFERRED;
@@ -3341,4 +3459,77 @@ public class FlatTabbedPaneUI
 				delegate.actionPerformed( e );
 		}
 	}
+
+	//---- class FlatSelectedTabRepainter -------------------------------------
+
+	private static class FlatSelectedTabRepainter
+		implements PropertyChangeListener//, Runnable
+	{
+		private static FlatSelectedTabRepainter instance;
+
+		private KeyboardFocusManager keyboardFocusManager;
+
+		static void install() {
+			synchronized( FlatSelectedTabRepainter.class ) {
+				if( instance != null )
+					return;
+
+				instance = new FlatSelectedTabRepainter();
+			}
+		}
+
+		FlatSelectedTabRepainter() {
+			keyboardFocusManager = KeyboardFocusManager.getCurrentKeyboardFocusManager();
+			keyboardFocusManager.addPropertyChangeListener( this );
+		}
+
+		private void uninstall() {
+			synchronized( FlatSelectedTabRepainter.class ) {
+				if( instance == null )
+					return;
+
+				keyboardFocusManager.removePropertyChangeListener( this );
+				keyboardFocusManager = null;
+				instance = null;
+			}
+		}
+
+		@Override
+		public void propertyChange( PropertyChangeEvent e ) {
+			// uninstall if no longer using FlatLaf
+			if( !(UIManager.getLookAndFeel() instanceof FlatLaf) ) {
+				uninstall();
+				return;
+			}
+
+			switch( e.getPropertyName() ) {
+				case "permanentFocusOwner":
+					Object oldValue = e.getOldValue();
+					Object newValue = e.getNewValue();
+					if( oldValue instanceof Component )
+						repaintSelectedTabs( (Component) oldValue );
+					if( newValue instanceof Component )
+						repaintSelectedTabs( (Component) newValue );
+					break;
+
+				case "activeWindow":
+					repaintSelectedTabs( keyboardFocusManager.getPermanentFocusOwner() );
+					break;
+			}
+		}
+
+		private void repaintSelectedTabs( Component c ) {
+			if( c instanceof JTabbedPane )
+				repaintSelectedTab( (JTabbedPane) c );
+
+			while( (c = SwingUtilities.getAncestorOfClass( JTabbedPane.class, c )) != null )
+				repaintSelectedTab( (JTabbedPane) c );
+		}
+
+		private void repaintSelectedTab( JTabbedPane tabbedPane ) {
+			TabbedPaneUI ui = tabbedPane.getUI();
+			if( ui instanceof FlatTabbedPaneUI )
+				((FlatTabbedPaneUI) ui).repaintTab( tabbedPane.getSelectedIndex() );
+		}
+	}
 }

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

@@ -39,7 +39,9 @@ import javax.swing.event.MouseInputListener;
 import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.UIResource;
 import javax.swing.plaf.basic.BasicTableHeaderUI;
+import javax.swing.table.JTableHeader;
 import javax.swing.table.TableCellRenderer;
+import javax.swing.table.TableColumn;
 import javax.swing.table.TableColumnModel;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
 import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableUI;
@@ -169,6 +171,22 @@ public class FlatTableHeaderUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		if( key.equals( "sortIconPosition" ) ) {
+			switch( sortIconPosition ) {
+				default:
+				case SwingConstants.RIGHT:	return "right";
+				case SwingConstants.LEFT:	return "left";
+				case SwingConstants.TOP:	return "top";
+				case SwingConstants.BOTTOM:	return "bottom";
+			}
+		}
+
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	private static int parseSortIconPosition( String str ) {
 		if( str == null )
 			str = "";
@@ -195,6 +213,8 @@ public class FlatTableHeaderUI
 
 	@Override
 	public void paint( Graphics g, JComponent c ) {
+		fixDraggedAndResizingColumns( header );
+
 		TableColumnModel columnModel = header.getColumnModel();
 		if( columnModel.getColumnCount() <= 0 )
 			return;
@@ -269,6 +289,32 @@ public class FlatTableHeaderUI
 		return size;
 	}
 
+	static void fixDraggedAndResizingColumns( JTableHeader header ) {
+		if( header == null )
+			return;
+
+		// Dragged column may be outdated in the case that the table structure
+		// was changed from a table header popup menu action. In this case
+		// the paint methods in BasicTableHeaderUI and BasicTableUI would throw exceptions.
+		TableColumn draggedColumn = header.getDraggedColumn();
+		if( draggedColumn != null && !isValidColumn( header.getColumnModel(), draggedColumn ) )
+			header.setDraggedColumn( null );
+
+		// also clear outdated resizing column (although this seems not cause exceptions)
+		TableColumn resizingColumn = header.getResizingColumn();
+		if( resizingColumn != null && !isValidColumn( header.getColumnModel(), resizingColumn ) )
+			header.setResizingColumn( null );
+	}
+
+	private static boolean isValidColumn( TableColumnModel cm, TableColumn column ) {
+		int count = cm.getColumnCount();
+		for( int i = 0; i < count; i++ ) {
+			if( cm.getColumn( i ) == column )
+				return true;
+		}
+		return false;
+	}
+
 	//---- class FlatTableCellHeaderRenderer ----------------------------------
 
 	/**

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

@@ -80,6 +80,7 @@ import com.formdev.flatlaf.util.UIScale;
  * @uiDefault Table.intercellSpacing					Dimension
  * @uiDefault Table.selectionInactiveBackground			Color
  * @uiDefault Table.selectionInactiveForeground			Color
+ * @uiDefault Table.paintOutsideAlternateRows			boolean
  *
  * <!-- FlatTableCellBorder -->
  *
@@ -95,7 +96,7 @@ import com.formdev.flatlaf.util.UIScale;
  */
 public class FlatTableUI
 	extends BasicTableUI
-	implements StyleableUI
+	implements StyleableUI, FlatViewportUI.ViewportPainter
 {
 	protected boolean showHorizontalLines;
 	protected boolean showVerticalLines;
@@ -285,6 +286,12 @@ public class FlatTableUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	/**
 	 * Toggle selection colors from focused to inactive and vice versa.
 	 *
@@ -313,6 +320,8 @@ public class FlatTableUI
 
 	@Override
 	public void paint( Graphics g, JComponent c ) {
+		FlatTableHeaderUI.fixDraggedAndResizingColumns( table.getTableHeader() );
+
 		boolean horizontalLines = table.getShowHorizontalLines();
 		boolean verticalLines = table.getShowVerticalLines();
 		if( horizontalLines || verticalLines ) {
@@ -421,4 +430,38 @@ public class FlatTableUI
 			? (viewport != rowHeader)
 			: (viewport == rowHeader || rowHeader == null);
 	}
+
+	/** @since 2.3 */
+	@Override
+	public void paintViewport( Graphics g, JComponent c, JViewport viewport ) {
+		int viewportWidth = viewport.getWidth();
+		int viewportHeight = viewport.getHeight();
+
+		// fill viewport background in same color as table background
+		if( viewport.isOpaque() ) {
+			g.setColor( table.getBackground() );
+			g.fillRect( 0, 0, viewportWidth, viewportHeight );
+		}
+
+		// paint alternating empty rows
+		boolean paintOutside = UIManager.getBoolean( "Table.paintOutsideAlternateRows" );
+		Color alternateColor;
+		if( paintOutside && (alternateColor = UIManager.getColor( "Table.alternateRowColor" )) != null ) {
+			g.setColor( alternateColor );
+
+			int rowCount = table.getRowCount();
+
+			// paint alternating empty rows below the table
+			int tableHeight = table.getHeight();
+			if( tableHeight < viewportHeight ) {
+				int tableWidth = table.getWidth();
+				int rowHeight = table.getRowHeight();
+
+				for( int y = tableHeight, row = rowCount; y < viewportHeight; y += rowHeight, row++ ) {
+					if( row % 2 != 0 )
+						g.fillRect( 0, y, tableWidth, rowHeight );
+				}
+			}
+		}
+	}
 }

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

@@ -86,6 +86,13 @@ public class FlatTextAreaUI
 
 	@Override
 	public void installUI( JComponent c ) {
+		if( FlatUIUtils.needsLightAWTPeer( c ) )
+			FlatUIUtils.runWithLightAWTPeerUIDefaults( () -> installUIImpl( c ) );
+		else
+			installUIImpl( c );
+	}
+
+	private void installUIImpl( JComponent c ) {
 		super.installUI( c );
 
 		installStyle();
@@ -183,6 +190,12 @@ public class FlatTextAreaUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	private void updateBackground() {
 		FlatTextFieldUI.updateBackground( getComponent(), background,
 			disabledBackground, inactiveBackground,

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

@@ -128,6 +128,13 @@ public class FlatTextFieldUI
 
 	@Override
 	public void installUI( JComponent c ) {
+		if( FlatUIUtils.needsLightAWTPeer( c ) )
+			FlatUIUtils.runWithLightAWTPeerUIDefaults( () -> installUIImpl( c ) );
+		else
+			installUIImpl( c );
+	}
+
+	private void installUIImpl( JComponent c ) {
 		super.installUI( c );
 
 		leadingIcon = clientProperty( c, TEXT_FIELD_LEADING_ICON, null, Icon.class );
@@ -354,6 +361,12 @@ public class FlatTextFieldUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this, getComponent().getBorder() );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, getComponent().getBorder(), key );
+	}
+
 	private void updateBackground() {
 		updateBackground( getComponent(), background,
 			disabledBackground, inactiveBackground,

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

@@ -191,6 +191,12 @@ public class FlatTextPaneUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	private void updateBackground() {
 		FlatTextFieldUI.updateBackground( getComponent(), background,
 			disabledBackground, inactiveBackground,

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

@@ -24,6 +24,8 @@ import java.awt.Container;
 import java.awt.Dialog;
 import java.awt.Dimension;
 import java.awt.EventQueue;
+import java.awt.Font;
+import java.awt.FontMetrics;
 import java.awt.Frame;
 import java.awt.Graphics;
 import java.awt.GraphicsConfiguration;
@@ -31,6 +33,7 @@ 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.ComponentEvent;
@@ -50,13 +53,14 @@ import javax.accessibility.AccessibleContext;
 import javax.swing.BorderFactory;
 import javax.swing.Box;
 import javax.swing.BoxLayout;
+import javax.swing.Icon;
 import javax.swing.JButton;
 import javax.swing.JComponent;
+import javax.swing.JDialog;
 import javax.swing.JLabel;
 import javax.swing.JMenuBar;
 import javax.swing.JPanel;
 import javax.swing.JRootPane;
-import javax.swing.SwingConstants;
 import javax.swing.SwingUtilities;
 import javax.swing.UIManager;
 import javax.swing.border.AbstractBorder;
@@ -70,6 +74,7 @@ import com.formdev.flatlaf.util.UIScale;
 /**
  * Provides the Flat LaF title bar.
  *
+ * @uiDefault TitlePane.font								Font
  * @uiDefault TitlePane.background							Color
  * @uiDefault TitlePane.inactiveBackground					Color
  * @uiDefault TitlePane.foreground							Color
@@ -78,15 +83,20 @@ import com.formdev.flatlaf.util.UIScale;
  * @uiDefault TitlePane.borderColor							Color	optional
  * @uiDefault TitlePane.unifiedBackground					boolean
  * @uiDefault TitlePane.showIcon							boolean
+ * @uiDefault TitlePane.showIconInDialogs					boolean
  * @uiDefault TitlePane.noIconLeftGap						int
  * @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.centerTitle							boolean
  * @uiDefault TitlePane.centerTitleIfMenuBarEmbedded		boolean
+ * @uiDefault TitlePane.showIconBesideTitle					boolean
  * @uiDefault TitlePane.menuBarTitleGap						int
+ * @uiDefault TitlePane.menuBarResizeHeight					int
  * @uiDefault TitlePane.closeIcon							Icon
  * @uiDefault TitlePane.iconifyIcon							Icon
  * @uiDefault TitlePane.maximizeIcon						Icon
@@ -97,6 +107,7 @@ import com.formdev.flatlaf.util.UIScale;
 public class FlatTitlePane
 	extends JComponent
 {
+	/** @since 2.5 */ protected final Font titleFont = UIManager.getFont( "TitlePane.font" );
 	protected final Color activeBackground = UIManager.getColor( "TitlePane.background" );
 	protected final Color inactiveBackground = UIManager.getColor( "TitlePane.inactiveBackground" );
 	protected final Color activeForeground = UIManager.getColor( "TitlePane.foreground" );
@@ -105,12 +116,18 @@ public class FlatTitlePane
 	protected final Color borderColor = UIManager.getColor( "TitlePane.borderColor" );
 
 	/** @since 2 */ protected final boolean showIcon = FlatUIUtils.getUIBoolean( "TitlePane.showIcon", true );
+	/** @since 2.5 */ protected final boolean showIconInDialogs = FlatUIUtils.getUIBoolean( "TitlePane.showIconInDialogs", true );
 	/** @since 2 */ protected final int noIconLeftGap = FlatUIUtils.getUIInt( "TitlePane.noIconLeftGap", 8 );
 	protected final Dimension iconSize = UIManager.getDimension( "TitlePane.iconSize" );
+	/** @since 2.4 */ protected final int titleMinimumWidth = FlatUIUtils.getUIInt( "TitlePane.titleMinimumWidth", 60 );
+	/** @since 2.4 */ protected final int buttonMinimumWidth = FlatUIUtils.getUIInt( "TitlePane.buttonMinimumWidth", 30 );
 	protected final int buttonMaximizedHeight = UIManager.getInt( "TitlePane.buttonMaximizedHeight" );
 	protected final boolean centerTitle = UIManager.getBoolean( "TitlePane.centerTitle" );
 	protected final boolean centerTitleIfMenuBarEmbedded = FlatUIUtils.getUIBoolean( "TitlePane.centerTitleIfMenuBarEmbedded", true );
-	protected final int menuBarTitleGap = FlatUIUtils.getUIInt( "TitlePane.menuBarTitleGap", 20 );
+	/** @since 2.4 */ protected final boolean showIconBesideTitle = UIManager.getBoolean( "TitlePane.showIconBesideTitle" );
+	protected final int menuBarTitleGap = FlatUIUtils.getUIInt( "TitlePane.menuBarTitleGap", 40 );
+	/** @since 2.4 */ protected final int menuBarTitleMinimumGap = FlatUIUtils.getUIInt( "TitlePane.menuBarTitleMinimumGap", 12 );
+	/** @since 2.4 */ protected final int menuBarResizeHeight = FlatUIUtils.getUIInt( "TitlePane.menuBarResizeHeight", 4 );
 
 	protected final JRootPane rootPane;
 
@@ -142,6 +159,8 @@ public class FlatTitlePane
 
 		// necessary for closing window with double-click on icon
 		iconLabel.addMouseListener( handler );
+
+		applyComponentOrientation( rootPane.getComponentOrientation() );
 	}
 
 	protected FlatTitlePaneBorder createTitlePaneBorder() {
@@ -163,7 +182,6 @@ public class FlatTitlePane
 		};
 		iconLabel.setBorder( new FlatEmptyBorder( UIManager.getInsets( "TitlePane.iconMargins" ) ) );
 		titleLabel.setBorder( new FlatEmptyBorder( UIManager.getInsets( "TitlePane.titleMargins" ) ) );
-		titleLabel.setHorizontalAlignment( SwingConstants.CENTER );
 
 		leftPanel.setLayout( new BoxLayout( leftPanel, BoxLayout.LINE_AXIS ) );
 		leftPanel.setOpaque( false );
@@ -183,18 +201,52 @@ public class FlatTitlePane
 		setLayout( new BorderLayout() {
 			@Override
 			public void layoutContainer( Container target ) {
-				super.layoutContainer( target );
-
-				// make left panel (with embedded menu bar) smaller if horizontal space is rare
-				// to avoid that embedded menu bar overlaps button bar
+				// compute available bounds
 				Insets insets = target.getInsets();
-				int width = target.getWidth() - insets.left - insets.right;
-				if( leftPanel.getWidth() + buttonPanel.getWidth() > width ) {
-					int oldWidth = leftPanel.getWidth();
-					int newWidth = Math.max( width - buttonPanel.getWidth(), 0 );
-					leftPanel.setSize( newWidth, leftPanel.getHeight() );
-					if( !getComponentOrientation().isLeftToRight() )
-						leftPanel.setLocation( leftPanel.getX() + (oldWidth - newWidth), leftPanel.getY() );
+				int x = insets.left;
+				int y = insets.top;
+				int w = target.getWidth() - insets.left - insets.right;
+				int h = target.getHeight() - insets.top - insets.bottom;
+
+				// compute widths
+				int leftWidth = leftPanel.getPreferredSize().width;
+				int buttonsWidth = buttonPanel.getPreferredSize().width;
+				int titleWidth = w - leftWidth - buttonsWidth;
+				int minTitleWidth = UIScale.scale( titleMinimumWidth );
+
+				// increase minimum width if icon is show besides the title
+				Icon icon = titleLabel.getIcon();
+				if( icon != null ) {
+					Insets iconInsets = iconLabel.getInsets();
+					int iconTextGap = titleLabel.getComponentOrientation().isLeftToRight() ? iconInsets.right : iconInsets.left;
+					minTitleWidth += icon.getIconWidth() + iconTextGap;
+				}
+
+				// if title is too small, reduce width of buttons
+				if( titleWidth < minTitleWidth ) {
+					buttonsWidth = Math.max( buttonsWidth - (minTitleWidth - titleWidth), buttonPanel.getMinimumSize().width );
+					titleWidth = w - leftWidth - buttonsWidth;
+				}
+
+				// if title is still too small, reduce width of left panel (icon and embedded menu bar)
+				if( titleWidth < minTitleWidth ) {
+					int minLeftWidth = iconLabel.isVisible()
+						? iconLabel.getWidth() - iconLabel.getInsets().right
+						: UIScale.scale( noIconLeftGap );
+					leftWidth = Math.max( leftWidth - (minTitleWidth - titleWidth), minLeftWidth );
+					titleWidth = w - leftWidth - buttonsWidth;
+				}
+
+				if( target.getComponentOrientation().isLeftToRight() ) {
+					// left-to-right
+					leftPanel.setBounds( x, y, leftWidth, h );
+					titleLabel.setBounds( x + leftWidth, y, titleWidth, h );
+					buttonPanel.setBounds( x + leftWidth + titleWidth, y, buttonsWidth, h );
+				} else {
+					// right-to-left
+					buttonPanel.setBounds( x, y, buttonsWidth, h );
+					titleLabel.setBounds( x + buttonsWidth, y, titleWidth, h );
+					leftPanel.setBounds( x + buttonsWidth + titleWidth, y, leftWidth, h );
 				}
 
 				// If menu bar is embedded and contains a horizontal glue component,
@@ -233,10 +285,7 @@ public class FlatTitlePane
 			@Override
 			public Dimension getPreferredSize() {
 				Dimension size = super.getPreferredSize();
-				if( buttonMaximizedHeight > 0 &&
-					window instanceof Frame &&
-					(((Frame)window).getExtendedState() & Frame.MAXIMIZED_BOTH) != 0 )
-				{
+				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 ) ) );
 				}
@@ -259,7 +308,13 @@ public class FlatTitlePane
 	}
 
 	protected JButton createButton( String iconKey, String accessibleName, ActionListener action ) {
-		JButton button = new JButton( UIManager.getIcon( iconKey ) );
+		JButton button = new JButton( UIManager.getIcon( iconKey ) ) {
+			@Override
+			public Dimension getMinimumSize() {
+				// allow the button to shrink if space is rare
+				return new Dimension( UIScale.scale( buttonMinimumWidth ), super.getMinimumSize().height );
+			}
+		};
 		button.setFocusable( false );
 		button.setContentAreaFilled( false );
 		button.setBorder( BorderFactory.createEmptyBorder() );
@@ -309,6 +364,7 @@ public class FlatTitlePane
 			restoreButton.setVisible( resizable && maximized );
 
 			if( maximized &&
+				!(SystemInfo.isLinux && FlatNativeLinuxLibrary.isWMUtilsSupported( window )) &&
 				rootPane.getClientProperty( "_flatlaf.maximizedBoundsUpToDate" ) == null )
 			{
 				rootPane.putClientProperty( "_flatlaf.maximizedBoundsUpToDate", null );
@@ -339,9 +395,13 @@ public class FlatTitlePane
 	}
 
 	protected void updateIcon() {
+		boolean defaultShowIcon = showIcon;
+		if( !showIconInDialogs && rootPane.getParent() instanceof JDialog )
+			defaultShowIcon = false;
+
 		// get window images
 		List<Image> images = null;
-		if( clientPropertyBoolean( rootPane, TITLE_BAR_SHOW_ICON, showIcon ) ) {
+		if( clientPropertyBoolean( rootPane, TITLE_BAR_SHOW_ICON, defaultShowIcon ) ) {
 			images = window.getIconImages();
 			if( images.isEmpty() ) {
 				// search in owners
@@ -356,11 +416,12 @@ public class FlatTitlePane
 		boolean hasIcon = (images != null && !images.isEmpty());
 
 		// set icon
-		iconLabel.setIcon( hasIcon ? new FlatTitlePaneIcon( images, iconSize ) : null );
+		iconLabel.setIcon( hasIcon && !showIconBesideTitle ? new FlatTitlePaneIcon( images, iconSize ) : null );
+		titleLabel.setIcon( hasIcon && showIconBesideTitle ? new FlatTitlePaneIcon( images, iconSize ) : null );
 
 		// show/hide icon
-		iconLabel.setVisible( hasIcon );
-		leftPanel.setBorder( hasIcon ? null : FlatUIUtils.nonUIResource( new FlatEmptyBorder( 0, noIconLeftGap, 0, 0 ) ) );
+		iconLabel.setVisible( hasIcon && !showIconBesideTitle );
+		leftPanel.setBorder( hasIcon && !showIconBesideTitle ? null : FlatUIUtils.nonUIResource( new FlatEmptyBorder( 0, noIconLeftGap, 0, 0 ) ) );
 
 		updateNativeTitleBarHeightAndHitTestSpotsLater();
 	}
@@ -567,6 +628,11 @@ debug*/
 			frame.setExtendedState( frame.getExtendedState() | Frame.ICONIFIED );
 	}
 
+	/** @since 2.4 */
+	protected boolean isWindowMaximized() {
+		return window instanceof Frame && (((Frame)window).getExtendedState() & Frame.MAXIMIZED_BOTH) != 0;
+	}
+
 	/**
 	 * Maximizes the window.
 	 */
@@ -683,6 +749,17 @@ debug*/
 		}
 	}
 
+	private void maximizeOrRestore() {
+		if( !(window instanceof Frame) || !((Frame)window).isResizable() )
+			return;
+
+		Frame frame = (Frame) window;
+		if( (frame.getExtendedState() & Frame.MAXIMIZED_BOTH) != 0 )
+			restore();
+		else
+			maximize();
+	}
+
 	/**
 	 * Closes the window.
 	 */
@@ -729,7 +806,7 @@ debug*/
 		List<Rectangle> hitTestSpots = new ArrayList<>();
 		Rectangle appIconBounds = null;
 
-		if( iconLabel.isVisible() ) {
+		if( !showIconBesideTitle && iconLabel.isVisible() ) {
 			// compute real icon size (without insets; 1px larger for easier hitting)
 			Point location = SwingUtilities.convertPoint( iconLabel, 0, 0, window );
 			Insets iconInsets = iconLabel.getInsets();
@@ -741,9 +818,7 @@ debug*/
 
 			// if frame is maximized, increase icon bounds to upper-left corner
 			// of window to allow closing window via double-click in upper-left corner
-			if( window instanceof Frame &&
-				(((Frame)window).getExtendedState() & Frame.MAXIMIZED_BOTH) != 0 )
-			{
+			if( isWindowMaximized() ) {
 				iconBounds.height += iconBounds.y;
 				iconBounds.y = 0;
 
@@ -758,6 +833,38 @@ debug*/
 				hitTestSpots.add( iconBounds );
 			else
 				appIconBounds = iconBounds;
+		} else if( showIconBesideTitle && titleLabel.getIcon() != null && titleLabel.getUI() instanceof FlatTitleLabelUI ) {
+			FlatTitleLabelUI ui = (FlatTitleLabelUI) titleLabel.getUI();
+
+			// compute real icon bounds
+			Insets insets = titleLabel.getInsets();
+			Rectangle viewR = new Rectangle( insets.left, insets.top,
+				titleLabel.getWidth() - insets.left - insets.right,
+				titleLabel.getHeight() - insets.top - insets.bottom );
+			Rectangle iconR = new Rectangle();
+			Rectangle textR = new Rectangle();
+			ui.layoutCL( titleLabel, titleLabel.getFontMetrics( titleLabel.getFont() ),
+				titleLabel.getText(), titleLabel.getIcon(),
+				viewR, iconR, textR );
+
+			// Windows shows the window system menu only in the upper-left corner
+			if( iconR.x == 0 ) {
+				// convert icon location to window coordinates
+				Point location = SwingUtilities.convertPoint( titleLabel, 0, 0, window );
+				iconR.x += location.x;
+				iconR.y += location.y;
+
+				// make icon bounds 1px larger for easier hitting
+				iconR.x -= 1;
+				iconR.y -= 1;
+				iconR.width += 2;
+				iconR.height += 2;
+
+				if( hasJBRCustomDecoration() )
+					hitTestSpots.add( iconR );
+				else
+					appIconBounds = iconR;
+			}
 		}
 
 		Rectangle r = getNativeHitTestSpot( buttonPanel );
@@ -768,26 +875,41 @@ debug*/
 		if( hasVisibleEmbeddedMenuBar( menuBar ) ) {
 			r = getNativeHitTestSpot( menuBar );
 			if( r != null ) {
-				Component horizontalGlue = findHorizontalGlue( menuBar );
-				if( horizontalGlue != null ) {
-					// If menu bar is embedded and contains a horizontal glue component,
-					// then split the hit test spot into two spots so that
-					// the glue component area can be used to move the window.
+				// if frame is resizable and not maximized, make menu bar hit test spot smaller at top
+				// to have a small area above the menu bar to resize the window
+				if( window instanceof Frame && ((Frame)window).isResizable() && !isWindowMaximized() ) {
+					// limit to 8, because Windows does not use a larger height
+					int resizeHeight = UIScale.scale( Math.min( menuBarResizeHeight, 8 ) );
+					r.y += resizeHeight;
+					r.height -= resizeHeight;
+				}
 
-					Point glueLocation = SwingUtilities.convertPoint( horizontalGlue, 0, 0, window );
-					int x2 = glueLocation.x + horizontalGlue.getWidth();
-					Rectangle r2;
-					if( getComponentOrientation().isLeftToRight() ) {
-						r2 = new Rectangle( x2, r.y, (r.x + r.width) - x2, r.height );
+				int count = menuBar.getComponentCount();
+				for( int i = count - 1; i >= 0; i-- ) {
+					Component c = menuBar.getComponent( i );
+					if( c instanceof Box.Filler ||
+						(c instanceof JComponent && clientPropertyBoolean( (JComponent) c, COMPONENT_TITLE_BAR_CAPTION, false ) ) )
+					{
+						// If menu bar is embedded and contains a horizontal glue or caption component,
+						// then split the hit test spot so that
+						// the glue/caption component area can be used to move the window.
 
-						r.width = glueLocation.x - r.x;
-					} else {
-						r2 = new Rectangle( r.x, r.y, glueLocation.x - r.x, r.height );
+						Point glueLocation = SwingUtilities.convertPoint( c, 0, 0, window );
+						int x2 = glueLocation.x + c.getWidth();
+						Rectangle r2;
+						if( getComponentOrientation().isLeftToRight() ) {
+							r2 = new Rectangle( x2, r.y, (r.x + r.width) - x2, r.height );
 
-						r.width = (r.x + r.width) - x2;
-						r.x = x2;
+							r.width = glueLocation.x - r.x;
+						} else {
+							r2 = new Rectangle( r.x, r.y, glueLocation.x - r.x, r.height );
+
+							r.width = (r.x + r.width) - x2;
+							r.x = x2;
+						}
+						if( r2.width > 0 )
+							hitTestSpots.add( r2 );
 					}
-					hitTestSpots.add( r2 );
 				}
 
 				hitTestSpots.add( r );
@@ -854,7 +976,7 @@ debug*/
 			} else if( borderColor != null && (rootPane.getJMenuBar() == null || !rootPane.getJMenuBar().isVisible()) )
 				insets.bottom += UIScale.scale( 1 );
 
-			if( !SystemInfo.isWindows_11_orLater && hasNativeCustomDecoration() && !isWindowMaximized( c ) )
+			if( !SystemInfo.isWindows_11_orLater && hasNativeCustomDecoration() && !isWindowMaximized() )
 				insets = FlatUIUtils.addInsets( insets, WindowTopBorder.getInstance().getBorderInsets() );
 
 			return insets;
@@ -873,7 +995,7 @@ debug*/
 				FlatUIUtils.paintFilledRectangle( g, borderColor, x, y + height - lineHeight, width, lineHeight );
 			}
 
-			if( !SystemInfo.isWindows_11_orLater && hasNativeCustomDecoration() && !isWindowMaximized( c ) )
+			if( !SystemInfo.isWindows_11_orLater && hasNativeCustomDecoration() && !isWindowMaximized() )
 				WindowTopBorder.getInstance().paintBorder( c, g, x, y, width, height );
 		}
 
@@ -881,10 +1003,6 @@ debug*/
 			JMenuBar menuBar = rootPane.getJMenuBar();
 			return hasVisibleEmbeddedMenuBar( menuBar ) ? menuBar.getBorder() : null;
 		}
-
-		protected boolean isWindowMaximized( Component c ) {
-			return window instanceof Frame && (((Frame) window).getExtendedState() & Frame.MAXIMIZED_BOTH) != 0;
-		}
 	}
 
 	//---- class FlatTitleLabelUI ---------------------------------------------
@@ -898,32 +1016,109 @@ debug*/
 		}
 
 		@Override
-		protected void paintEnabledText( JLabel l, Graphics g, String s, int textX, int textY ) {
-			boolean hasEmbeddedMenuBar = hasVisibleEmbeddedMenuBar( rootPane.getJMenuBar() );
-			int labelWidth = l.getWidth();
-			int textWidth = labelWidth - (textX * 2);
-			int gap = UIScale.scale( menuBarTitleGap );
+		protected void installDefaults( JLabel c ) {
+			super.installDefaults( c );
 
-			// The passed in textX coordinate is always to horizontally center the text within the label bounds.
-			// Modify textX so that the text is painted either centered within the window bounds or leading aligned.
-			boolean center = hasEmbeddedMenuBar ? centerTitleIfMenuBarEmbedded : centerTitle;
-			if( center ) {
-				// If window is wide enough, center title within window bounds.
-				// Otherwise, leave it centered within free space (label bounds).
-				int centeredTextX = ((l.getParent().getWidth() - textWidth) / 2) - l.getX();
-				if( centeredTextX >= gap && centeredTextX + textWidth <= labelWidth - gap )
-					textX = centeredTextX;
-			} else {
-				// leading aligned
-				boolean leftToRight = getComponentOrientation().isLeftToRight();
-				Insets insets = l.getInsets();
-				int leadingInset = hasEmbeddedMenuBar ? gap : (leftToRight ? insets.left : insets.right);
-				int leadingTextX = leftToRight ? leadingInset : labelWidth - leadingInset - textWidth;
-				if( leftToRight ? leadingTextX < textX : leadingTextX > textX )
-					textX = leadingTextX;
+			if( titleFont != null )
+				c.setFont( titleFont );
+		}
+
+		@Override
+		protected String layoutCL( JLabel label, FontMetrics fontMetrics, String text, Icon icon,
+			Rectangle viewR, Rectangle iconR, Rectangle textR )
+		{
+			JMenuBar menuBar = rootPane.getJMenuBar();
+			boolean hasEmbeddedMenuBar = hasVisibleEmbeddedMenuBar( menuBar );
+			boolean hasEmbeddedLeadingMenus = hasEmbeddedMenuBar && hasLeadingMenus( menuBar );
+			boolean leftToRight = getComponentOrientation().isLeftToRight();
+
+			if( hasEmbeddedMenuBar ) {
+				int minGap = UIScale.scale( menuBarTitleMinimumGap );
+
+				// apply minimum leading gap (between embedded menu bar and title)
+				if( hasEmbeddedLeadingMenus ) {
+					if( leftToRight )
+						viewR.x += minGap;
+					viewR.width -= minGap;
+				}
+
+				// apply minimum trailing gap (between title and right aligned components of embedded menu bar)
+				Component horizontalGlue = findHorizontalGlue( menuBar );
+				if( horizontalGlue != null && menuBar.getComponent( menuBar.getComponentCount() - 1 ) != horizontalGlue ) {
+					if( !leftToRight )
+						viewR.x += minGap;
+					viewR.width -= minGap;
+				}
 			}
 
-			super.paintEnabledText( l, g, s, textX, textY );
+			// compute icon width and gap (if icon is show besides the title)
+			int iconTextGap = 0;
+			int iconWidthAndGap = 0;
+			if( icon != null ) {
+				Insets iconInsets = iconLabel.getInsets();
+				iconTextGap = leftToRight ? iconInsets.right : iconInsets.left;
+				iconWidthAndGap = icon.getIconWidth() + iconTextGap;
+			}
+
+			// layout title and icon (if show besides the title)
+			String clippedText = SwingUtilities.layoutCompoundLabel( label, fontMetrics, text, icon,
+				label.getVerticalAlignment(), label.getHorizontalAlignment(),
+				label.getVerticalTextPosition(), label.getHorizontalTextPosition(),
+				viewR, iconR, textR,
+				iconTextGap );
+
+			// compute text X location
+			if( !clippedText.equals( text ) ) {
+				// if text is clipped, align to left (or right)
+				textR.x = leftToRight
+					? viewR.x + iconWidthAndGap
+					: viewR.x + viewR.width - iconWidthAndGap - textR.width;
+			} else {
+				int leadingGap = hasEmbeddedLeadingMenus ? UIScale.scale( menuBarTitleGap - menuBarTitleMinimumGap ) : 0;
+
+				boolean center = hasEmbeddedLeadingMenus ? centerTitleIfMenuBarEmbedded : centerTitle;
+				if( center ) {
+					// If window is wide enough, center title within window bounds.
+					// Otherwise, center within free space (label bounds).
+					Container parent = label.getParent();
+					int centeredTextX = (parent != null) ? ((parent.getWidth() - textR.width - iconWidthAndGap) / 2) + iconWidthAndGap - label.getX() : -1;
+					textR.x = (centeredTextX >= viewR.x + leadingGap && centeredTextX + textR.width <= viewR.x + viewR.width - leadingGap)
+						? centeredTextX
+						: viewR.x + ((viewR.width - textR.width - iconWidthAndGap) / 2) + iconWidthAndGap;
+				} else {
+					// leading aligned with leading gap, which is reduced if space is rare
+					textR.x = leftToRight
+						? Math.min( viewR.x + leadingGap + iconWidthAndGap, viewR.x + viewR.width - textR.width )
+						: Math.max( viewR.x + viewR.width - leadingGap - iconWidthAndGap - textR.width, viewR.x );
+				}
+			}
+
+			// compute icon X location (relative to text X location)
+			if( icon != null ) {
+				iconR.x = leftToRight
+					? textR.x - iconWidthAndGap
+					: textR.x + textR.width + iconTextGap;
+			}
+
+			return clippedText;
+		}
+
+		private boolean hasLeadingMenus( JMenuBar menuBar ) {
+			// check whether menu bar is empty
+			if( menuBar.getComponentCount() == 0 || menuBar.getWidth() == 0 )
+				return false;
+
+			// check whether menu bar has a leading glue component
+			// (no menus/components at left side)
+			Component horizontalGlue = findHorizontalGlue( menuBar );
+			if( horizontalGlue != null ) {
+				boolean leftToRight = getComponentOrientation().isLeftToRight();
+				if( (leftToRight && horizontalGlue.getX() == 0) ||
+					(!leftToRight && horizontalGlue.getX() + horizontalGlue.getWidth() == menuBar.getWidth()) )
+				  return false;
+			}
+
+			return true;
 		}
 	}
 
@@ -990,23 +1185,30 @@ debug*/
 		//---- interface MouseListener ----
 
 		private Point dragOffset;
+		private boolean nativeMove;
+		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 thru for some reason
+			if( 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( e.getSource() == iconLabel ) {
 					// double-click on icon closes window
 					close();
-				} else if( !hasNativeCustomDecoration() &&
-					window instanceof Frame &&
-					((Frame)window).isResizable() )
-				{
+				} else if( !hasNativeCustomDecoration() ) {
 					// maximize/restore on double-click
-					Frame frame = (Frame) window;
-					if( (frame.getExtendedState() & Frame.MAXIMIZED_BOTH) != 0 )
-						restore();
-					else
-						maximize();
+					maximizeOrRestore();
 				}
 			}
 		}
@@ -1016,7 +1218,56 @@ debug*/
 			if( window == null )
 				return; // should newer occur
 
+			// on Linux, show window menu
+			if( SwingUtilities.isRightMouseButton( e ) &&
+				SystemInfo.isLinux && FlatNativeLinuxLibrary.isWMUtilsSupported( window ) )
+			{
+				e.consume();
+				FlatNativeLinuxLibrary.showWindowMenu( window, e );
+				return;
+			}
+
+			if( !SwingUtilities.isLeftMouseButton( e ) )
+				return;
+
 			dragOffset = SwingUtilities.convertPoint( FlatTitlePane.this, e.getPoint(), window );
+			nativeMove = 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();
+						nativeMove = 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 ) {}
@@ -1027,9 +1278,15 @@ debug*/
 
 		@Override
 		public void mouseDragged( MouseEvent e ) {
-			if( window == null )
+			if( window == null || dragOffset == null )
 				return; // should newer occur
 
+			if( nativeMove )
+				return;
+
+			if( !SwingUtilities.isLeftMouseButton( e ) )
+				return;
+
 			if( hasNativeCustomDecoration() )
 				return; // do nothing if having native window border
 

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

@@ -22,10 +22,7 @@ import java.awt.Component;
 import java.awt.Graphics;
 import java.beans.PropertyChangeEvent;
 import java.util.Map;
-import javax.swing.AbstractButton;
-import javax.swing.JComponent;
-import javax.swing.JToggleButton;
-import javax.swing.UIManager;
+import javax.swing.*;
 import javax.swing.plaf.ComponentUI;
 import com.formdev.flatlaf.ui.FlatStylingSupport.Styleable;
 import com.formdev.flatlaf.ui.FlatStylingSupport.UnknownStyleException;
@@ -51,15 +48,29 @@ import com.formdev.flatlaf.util.UIScale;
  * @uiDefault ToggleButton.iconTextGap					int
  * @uiDefault ToggleButton.startBackground				Color	optional; if set, a gradient paint is used and ToggleButton.background is ignored
  * @uiDefault ToggleButton.endBackground				Color	optional; if set, a gradient paint is used
- * @uiDefault ToggleButton.pressedBackground			Color
+ * @uiDefault ToggleButton.focusedBackground			Color	optional
+ * @uiDefault ToggleButton.focusedForeground			Color	optional
+ * @uiDefault ToggleButton.hoverBackground				Color	optional
+ * @uiDefault ToggleButton.hoverForeground				Color	optional
+ * @uiDefault ToggleButton.pressedBackground			Color	optional
+ * @uiDefault ToggleButton.pressedForeground			Color	optional
  * @uiDefault ToggleButton.selectedBackground			Color
  * @uiDefault ToggleButton.selectedForeground			Color
  * @uiDefault ToggleButton.disabledBackground			Color	optional
  * @uiDefault ToggleButton.disabledText					Color
  * @uiDefault ToggleButton.disabledSelectedBackground	Color
+ * @uiDefault ToggleButton.disabledSelectedForeground	Color	optional
+ * @uiDefault Button.paintShadow						boolean	default is false
+ * @uiDefault Button.shadowWidth						int		default is 2
+ * @uiDefault Button.shadowColor						Color	optional
  * @uiDefault ToggleButton.toolbar.hoverBackground		Color
+ * @uiDefault ToggleButton.toolbar.hoverForeground		Color	optional
  * @uiDefault ToggleButton.toolbar.pressedBackground	Color
+ * @uiDefault ToggleButton.toolbar.pressedForeground	Color	optional
  * @uiDefault ToggleButton.toolbar.selectedBackground	Color
+ * @uiDefault ToggleButton.toolbar.selectedForeground	Color	optional
+ * @uiDefault ToggleButton.toolbar.disabledSelectedBackground	Color	optional
+ * @uiDefault ToggleButton.toolbar.disabledSelectedForeground	Color	optional
  *
  * <!-- FlatToggleButtonUI -->
  *
@@ -67,8 +78,11 @@ import com.formdev.flatlaf.util.UIScale;
  * @uiDefault ToggleButton.tab.underlineColor			Color
  * @uiDefault ToggleButton.tab.disabledUnderlineColor	Color
  * @uiDefault ToggleButton.tab.selectedBackground		Color	optional
+ * @uiDefault ToggleButton.tab.selectedForeground		Color	optional
  * @uiDefault ToggleButton.tab.hoverBackground			Color
+ * @uiDefault ToggleButton.tab.hoverForeground			Color	optional
  * @uiDefault ToggleButton.tab.focusBackground			Color
+ * @uiDefault ToggleButton.tab.focusForeground			Color	optional
  *
  *
  * @author Karl Tauber
@@ -80,8 +94,11 @@ public class FlatToggleButtonUI
 	@Styleable(dot=true) protected Color tabUnderlineColor;
 	@Styleable(dot=true) protected Color tabDisabledUnderlineColor;
 	@Styleable(dot=true) protected Color tabSelectedBackground;
+	/** @since 2.3 */ @Styleable(dot=true) protected Color tabSelectedForeground;
 	@Styleable(dot=true) protected Color tabHoverBackground;
+	/** @since 2.3 */ @Styleable(dot=true) protected Color tabHoverForeground;
 	@Styleable(dot=true) protected Color tabFocusBackground;
+	/** @since 2.3 */ @Styleable(dot=true) protected Color tabFocusForeground;
 
 	private boolean defaults_initialized = false;
 
@@ -114,8 +131,11 @@ public class FlatToggleButtonUI
 			tabUnderlineColor = UIManager.getColor( "ToggleButton.tab.underlineColor" );
 			tabDisabledUnderlineColor = UIManager.getColor( "ToggleButton.tab.disabledUnderlineColor" );
 			tabSelectedBackground = UIManager.getColor( "ToggleButton.tab.selectedBackground" );
+			tabSelectedForeground = UIManager.getColor( "ToggleButton.tab.selectedForeground" );
 			tabHoverBackground = UIManager.getColor( "ToggleButton.tab.hoverBackground" );
+			tabHoverForeground = UIManager.getColor( "ToggleButton.tab.hoverForeground" );
 			tabFocusBackground = UIManager.getColor( "ToggleButton.tab.focusBackground" );
+			tabFocusForeground = UIManager.getColor( "ToggleButton.tab.focusForeground" );
 
 			defaults_initialized = true;
 		}
@@ -142,6 +162,7 @@ public class FlatToggleButtonUI
 				b.repaint();
 				break;
 
+			case TAB_BUTTON_UNDERLINE_PLACEMENT:
 			case TAB_BUTTON_UNDERLINE_HEIGHT:
 			case TAB_BUTTON_UNDERLINE_COLOR:
 			case TAB_BUTTON_SELECTED_BACKGROUND:
@@ -196,13 +217,42 @@ public class FlatToggleButtonUI
 
 			// paint underline if selected
 			if( selected ) {
-				int underlineHeight = UIScale.scale( clientPropertyInt( c, TAB_BUTTON_UNDERLINE_HEIGHT, tabUnderlineHeight ) );
+				int underlineThickness = UIScale.scale( clientPropertyInt( c, TAB_BUTTON_UNDERLINE_HEIGHT, tabUnderlineHeight ) );
 				g.setColor( c.isEnabled()
 					? clientPropertyColor( c, TAB_BUTTON_UNDERLINE_COLOR, tabUnderlineColor )
 					: tabDisabledUnderlineColor );
-				g.fillRect( 0, height - underlineHeight, width, underlineHeight );
+				int placement = clientPropertyInt( c, TAB_BUTTON_UNDERLINE_PLACEMENT, SwingConstants.BOTTOM );
+				switch (placement) {
+					case SwingConstants.TOP:
+						g.fillRect( 0, 0, width, underlineThickness );
+						break;
+					case SwingConstants.LEFT:
+						g.fillRect( 0, 0, underlineThickness, height );
+						break;
+					case SwingConstants.RIGHT:
+						g.fillRect( width - underlineThickness, 0, underlineThickness, height );
+						break;
+					case SwingConstants.BOTTOM:
+					default:
+						g.fillRect( 0, height - underlineThickness, width, underlineThickness );
+				}
 			}
 		} else
 			super.paintBackground( g, c );
 	}
+
+	@Override
+	protected Color getForeground( JComponent c ) {
+		if( isTabButton( c ) ) {
+			if( !c.isEnabled() )
+				return disabledText;
+
+			if( tabSelectedForeground != null && ((AbstractButton)c).isSelected() )
+				return tabSelectedForeground;
+
+			return buttonStateColor( c, c.getForeground(), disabledText,
+				tabFocusForeground, tabHoverForeground, null );
+		} else
+			return super.getForeground( c );
+	}
 }

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

@@ -160,6 +160,12 @@ public class FlatToolBarSeparatorUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	@Override
 	public Dimension getPreferredSize( JComponent c ) {
 		Dimension size = ((JToolBar.Separator)c).getSeparatorSize();

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

@@ -201,6 +201,12 @@ public class FlatToolBarUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	/** @since 1.4 */
 	protected void setButtonsFocusable( boolean focusable ) {
 		for( Component c : toolBar.getComponents() )
@@ -256,11 +262,15 @@ public class FlatToolBarUI
 			default: return;
 		}
 
-		for( int i = focusedCompIndex + add; i != focusedCompIndex; i += add ) {
+		int i = focusedCompIndex;
+		for(;;) {
+			i += add;
 			if( i < 0 )
 				i = count - 1;
 			else if( i >= count )
 				i = 0;
+			if( i == focusedCompIndex )
+				break;
 
 			Component c = toolBar.getComponentAtIndex( i );
 			if( canBeFocusOwner( c ) ) {

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

@@ -340,6 +340,12 @@ public class FlatTreeUI
 		return FlatStylingSupport.getAnnotatedStyleableInfos( this );
 	}
 
+	/** @since 2.5 */
+	@Override
+	public Object getStyleableValue( JComponent c, String key ) {
+		return FlatStylingSupport.getAnnotatedStyleableValue( this, key );
+	}
+
 	/**
 	 * Same as super.paintRow(), but supports wide selection and uses
 	 * inactive selection background/foreground if tree is not focused.

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

@@ -33,6 +33,7 @@ import java.awt.Rectangle;
 import java.awt.RenderingHints;
 import java.awt.Shape;
 import java.awt.Stroke;
+import java.awt.SystemColor;
 import java.awt.Window;
 import java.awt.event.FocusEvent;
 import java.awt.event.FocusListener;
@@ -45,20 +46,27 @@ import java.util.WeakHashMap;
 import java.util.function.Predicate;
 import java.util.function.Supplier;
 import javax.swing.JComponent;
+import javax.swing.JScrollPane;
 import javax.swing.JTable;
+import javax.swing.JTextField;
 import javax.swing.LookAndFeel;
 import javax.swing.SwingConstants;
 import javax.swing.SwingUtilities;
+import javax.swing.UIDefaults;
 import javax.swing.UIManager;
 import javax.swing.border.Border;
 import javax.swing.border.CompoundBorder;
 import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.UIResource;
 import com.formdev.flatlaf.FlatClientProperties;
+import com.formdev.flatlaf.FlatIntelliJLaf;
+import com.formdev.flatlaf.FlatLaf;
+import com.formdev.flatlaf.FlatLightLaf;
 import com.formdev.flatlaf.FlatSystemProperties;
 import com.formdev.flatlaf.util.DerivedColor;
 import com.formdev.flatlaf.util.Graphics2DProxy;
 import com.formdev.flatlaf.util.HiDPIUtils;
+import com.formdev.flatlaf.util.SystemInfo;
 import com.formdev.flatlaf.util.UIScale;
 
 /**
@@ -241,16 +249,53 @@ public class FlatUIUtils
 			}
 		}
 
+		// invoke hasFocus() here because components may have overridden this method
+		// (e.g. Swing delegate components used for AWT components on macOS)
+		if( c.hasFocus() )
+			return true;
+
 		return keyboardFocusManager.getPermanentFocusOwner() == c &&
 			isInActiveWindow( c, keyboardFocusManager.getActiveWindow() );
 	}
 
-	private static boolean isInActiveWindow( Component c, Window activeWindow ) {
+	static boolean isInActiveWindow( Component c, Window activeWindow ) {
 		Window window = SwingUtilities.windowForComponent( c );
 		return window == activeWindow ||
 			(window != null && window.getType() == Window.Type.POPUP && window.getOwner() == activeWindow);
 	}
 
+	static boolean isAWTPeer( Component c ) {
+		// on macOS, Swing components are used for AWT components
+		if( SystemInfo.isMacOS )
+			return c.getClass().getName().startsWith( "sun.lwawt.LW" );
+		return false;
+	}
+
+	/**
+	 * Checks whether component is used as peer for AWT (on macOS) and
+	 * whether a dark FlatLaf theme is active, which requires special handling
+	 * because AWT always uses light colors.
+	 */
+	static boolean needsLightAWTPeer( JComponent c ) {
+		return FlatUIUtils.isAWTPeer( c ) && FlatLaf.isLafDark();
+	}
+
+	private static UIDefaults lightAWTPeerDefaults;
+
+	static void runWithLightAWTPeerUIDefaults( Runnable runnable ) {
+		if( lightAWTPeerDefaults == null ) {
+			FlatLaf lightLaf = UIManager.getInt( "Component.focusWidth" ) >= 2
+				? new FlatIntelliJLaf()
+				: new FlatLightLaf();
+			lightAWTPeerDefaults = lightLaf.getDefaults();
+		}
+
+		FlatLaf.runWithUIDefaultsGetter( key -> {
+			Object value = lightAWTPeerDefaults.get( key );
+			return (value != null) ? value : FlatLaf.NULL_VALUE;
+		}, runnable );
+	}
+
 	/**
 	 * Returns whether the given component is in a window that is in full-screen mode.
 	 */
@@ -335,7 +380,7 @@ public class FlatUIUtils
 	 */
 	public static Object[] setRenderingHints( Graphics g ) {
 		Graphics2D g2 = (Graphics2D) g;
-		Object[] oldRenderingHints = new Object[] {
+		Object[] oldRenderingHints = {
 			g2.getRenderingHint( RenderingHints.KEY_ANTIALIASING ),
 			g2.getRenderingHint( RenderingHints.KEY_STROKE_CONTROL ),
 		};
@@ -352,8 +397,10 @@ public class FlatUIUtils
 	 */
 	public static void resetRenderingHints( Graphics g, Object[] oldRenderingHints ) {
 		Graphics2D g2 = (Graphics2D) g;
-		g2.setRenderingHint( RenderingHints.KEY_ANTIALIASING, oldRenderingHints[0] );
-		g2.setRenderingHint( RenderingHints.KEY_STROKE_CONTROL, oldRenderingHints[1] );
+		if( oldRenderingHints[0] != null )
+			g2.setRenderingHint( RenderingHints.KEY_ANTIALIASING, oldRenderingHints[0] );
+		if( oldRenderingHints[1] != null )
+			g2.setRenderingHint( RenderingHints.KEY_STROKE_CONTROL, oldRenderingHints[1] );
 	}
 
 	/**
@@ -376,7 +423,7 @@ public class FlatUIUtils
 		}
 
 		Graphics2D g2 = (Graphics2D) g;
-		Object[] oldRenderingHints2 = new Object[] {
+		Object[] oldRenderingHints2 = {
 			g2.getRenderingHint( RenderingHints.KEY_ANTIALIASING ),
 			g2.getRenderingHint( RenderingHints.KEY_STROKE_CONTROL ),
 		};
@@ -664,9 +711,9 @@ public class FlatUIUtils
 	 * is smaller than its bounds (for the focus decoration).
 	 */
 	public static void paintParentBackground( Graphics g, JComponent c ) {
-		Container parent = findOpaqueParent( c );
-		if( parent != null ) {
-			g.setColor( parent.getBackground() );
+		Color background = getParentBackground( c );
+		if( background != null ) {
+			g.setColor( background );
 			g.fillRect( 0, 0, c.getWidth(), c.getHeight() );
 		}
 	}
@@ -676,9 +723,20 @@ public class FlatUIUtils
 	 */
 	public static Color getParentBackground( JComponent c ) {
 		Container parent = findOpaqueParent( c );
-		return (parent != null)
-			? parent.getBackground()
-			: UIManager.getColor( "Panel.background" ); // fallback, probably never used
+		// parent.getBackground() may return null
+		// (e.g. for Swing delegate components used for AWT components on macOS)
+		Color background = (parent != null) ? parent.getBackground() : null;
+		if( background != null )
+			return background;
+
+		if( isAWTPeer( c ) ) {
+			// AWT peers usually use component background, except for TextField and ScrollPane
+			return c instanceof JTextField || c instanceof JScrollPane || c.getBackground() == null
+				? SystemColor.window
+				: c.getBackground();
+		}
+
+		return UIManager.getColor( "Panel.background" );
 	}
 
 	/**

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

@@ -18,8 +18,8 @@ package com.formdev.flatlaf.ui;
 
 import java.awt.Component;
 import java.awt.Graphics;
+import java.lang.reflect.Method;
 import javax.swing.JComponent;
-import javax.swing.JTable;
 import javax.swing.JViewport;
 import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.basic.BasicViewportUI;
@@ -43,15 +43,28 @@ public class FlatViewportUI
 	}
 
 	@Override
-	public void update( Graphics g, JComponent c ) {
-		Component view = ((JViewport)c).getView();
-		if( c.isOpaque() && view instanceof JTable ) {
-			// paint viewport background in same color as table background
-			g.setColor( view.getBackground() );
-			g.fillRect( 0, 0, c.getWidth(), c.getHeight() );
+	public void paint( Graphics g, JComponent c ) {
+		super.paint( g, c );
 
-			paint( g, c );
-		} else
-			super.update( g, c );
+		Component view = ((JViewport)c).getView();
+		if( view instanceof JComponent ) {
+			try {
+				Method m = view.getClass().getMethod( "getUI" );
+				Object ui = m.invoke( view );
+				if( ui instanceof ViewportPainter )
+					((ViewportPainter)ui).paintViewport( g, (JComponent) view, (JViewport) c );
+			} catch( Exception ex ) {
+				// ignore
+			}
+		}
+	}
+
+	//---- interface ViewportPainter ------------------------------------------
+
+	/**
+	 * @since 2.3
+	 */
+	public interface ViewportPainter {
+		void paintViewport( Graphics g, JComponent c, JViewport viewport );
 	}
 }

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

@@ -43,6 +43,7 @@ import javax.swing.JComponent;
 import javax.swing.JInternalFrame;
 import javax.swing.JLayeredPane;
 import javax.swing.JRootPane;
+import javax.swing.SwingUtilities;
 import javax.swing.UIManager;
 import com.formdev.flatlaf.util.SystemInfo;
 import com.formdev.flatlaf.util.UIScale;
@@ -521,7 +522,7 @@ debug*/
 
 		@Override
 		public void mousePressed( MouseEvent e ) {
-			if( !isWindowResizable() )
+			if( !SwingUtilities.isLeftMouseButton( e ) || !isWindowResizable() )
 				return;
 
 			int xOnScreen = e.getXOnScreen();
@@ -550,7 +551,7 @@ debug*/
 
 		@Override
 		public void mouseReleased( MouseEvent e ) {
-			if( !isWindowResizable() )
+			if( !SwingUtilities.isLeftMouseButton( e ) || !isWindowResizable() )
 				return;
 
 			dragLeftOffset = dragRightOffset = dragTopOffset = dragBottomOffset = 0;
@@ -576,7 +577,7 @@ debug*/
 
 		@Override
 		public void mouseDragged( MouseEvent e ) {
-			if( !isWindowResizable() )
+			if( !SwingUtilities.isLeftMouseButton( e ) || !isWindowResizable() )
 				return;
 
 			int xOnScreen = e.getXOnScreen();

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

@@ -27,7 +27,6 @@ import java.awt.Window;
 import java.awt.geom.AffineTransform;
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
-import java.io.File;
 import java.util.Collections;
 import java.util.IdentityHashMap;
 import java.util.List;
@@ -38,9 +37,7 @@ import javax.swing.Timer;
 import javax.swing.event.ChangeEvent;
 import javax.swing.event.ChangeListener;
 import javax.swing.event.EventListenerList;
-import com.formdev.flatlaf.FlatSystemProperties;
 import com.formdev.flatlaf.util.LoggingFacade;
-import com.formdev.flatlaf.util.NativeLibrary;
 import com.formdev.flatlaf.util.SystemInfo;
 
 //
@@ -84,7 +81,6 @@ class FlatWindowsNativeWindowBorder
 	private Color colorizationColor;
 	private int colorizationColorBalance;
 
-	private static NativeLibrary nativeLibrary;
 	private static FlatWindowsNativeWindowBorder instance;
 
 	static FlatNativeWindowBorder.Provider getInstance() {
@@ -96,31 +92,8 @@ class FlatWindowsNativeWindowBorder
 		if( !SystemInfo.isX86 && !SystemInfo.isX86_64 )
 			return null;
 
-		// load native library
-		if( nativeLibrary == null ) {
-			if( !SystemInfo.isJava_9_orLater ) {
-				// In Java 8, load jawt.dll (part of JRE) explicitly because it
-				// is not found when running application with <jdk>/bin/java.exe.
-				// When using <jdk>/jre/bin/java.exe, it is found.
-				// jawt.dll is located in <jdk>/jre/bin/.
-				// Java 9 and later does not have this problem.
-				try {
-					System.loadLibrary( "jawt" );
-				} catch( UnsatisfiedLinkError ex ) {
-					// log error only if native library jawt.dll not already loaded
-					String message = ex.getMessage();
-					if( message == null || !message.contains( "already loaded in another classloader" ) )
-						LoggingFacade.INSTANCE.logSevere( null, ex );
-				} catch( Exception ex ) {
-					LoggingFacade.INSTANCE.logSevere( null, ex );
-				}
-			}
-
-			nativeLibrary = createNativeLibrary();
-		}
-
 		// check whether native library was successfully loaded
-		if( !nativeLibrary.isLoaded() )
+		if( !FlatNativeLibrary.isLoaded() )
 			return null;
 
 		// create new instance
@@ -129,23 +102,6 @@ class FlatWindowsNativeWindowBorder
 		return instance;
 	}
 
-	private static NativeLibrary createNativeLibrary() {
-		String libraryName = "flatlaf-windows-x86";
-		if( SystemInfo.isX86_64 )
-			libraryName += "_64";
-
-		String libraryPath = System.getProperty( FlatSystemProperties.NATIVE_LIBRARY_PATH );
-		if( libraryPath != null ) {
-			File libraryFile = new File( libraryPath, libraryName + ".dll" );
-			if( libraryFile.exists() )
-				return new NativeLibrary( libraryFile, true );
-			else
-				LoggingFacade.INSTANCE.logSevere( "Did not find external library " + libraryFile + ", using extracted library instead", null );
-		}
-
-		return new NativeLibrary( "com/formdev/flatlaf/natives/" + libraryName, null, true );
-	}
-
 	private FlatWindowsNativeWindowBorder() {
 	}
 

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

@@ -195,11 +195,13 @@ public class JBRCustomDecorations
 	{
 		private static JBRWindowTopBorder instance;
 
-		private final Color defaultActiveBorder = new Color( 0x707070 );
+		private final Color activeLightColor = new Color( 0x707070 );
+		private final Color activeDarkColor = new Color( 0x2D2E2F );
 		private final Color inactiveLightColor = new Color( 0xaaaaaa );
+		private final Color inactiveDarkColor = new Color( 0x494A4B );
 
 		private boolean colorizationAffectsBorders;
-		private Color activeColor = defaultActiveBorder;
+		private Color activeColor;
 
 		static JBRWindowTopBorder getInstance() {
 			if( instance == null )
@@ -250,7 +252,7 @@ public class JBRCustomDecorations
 
 		private Color calculateActiveBorderColor() {
 			if( !colorizationAffectsBorders )
-				return defaultActiveBorder;
+				return null;
 
 			Color colorizationColor = getColorizationColor();
 			if( colorizationColor != null ) {
@@ -285,15 +287,11 @@ public class JBRCustomDecorations
 		public void paintBorder( Component c, Graphics g, int x, int y, int width, int height ) {
 			Window window = SwingUtilities.windowForComponent( c );
 			boolean active = window != null && window.isActive();
+			boolean dark = FlatLaf.isLafDark();
 
-			// paint top border
-			//  - in light themes
-			//  - in dark themes only for active windows if colorization affects borders
-			boolean paintTopBorder = !FlatLaf.isLafDark() || (active && colorizationAffectsBorders);
-			if( !paintTopBorder )
-				return;
-
-			g.setColor( active ? activeColor : inactiveLightColor );
+			g.setColor( active
+				? (activeColor != null ? activeColor : (dark ? activeDarkColor : activeLightColor))
+				: (dark ? inactiveDarkColor : inactiveLightColor) );
 			HiDPIUtils.paintAtScale1x( (Graphics2D) g, x, y, width, height, this::paintImpl );
 		}
 

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

@@ -143,8 +143,8 @@ public class MigLayoutVisualPadding
 	//---- class FlatMigInsets ------------------------------------------------
 
 	/**
-	 * Marker class to identify our visual paddings and leaf paddings,
-	 * which were set from outside, untouched.
+	 * Marker class to identify our visual paddings and leave paddings
+	 * set from outside untouched.
 	 */
 	private static class FlatMigInsets
 		extends Insets

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

@@ -48,30 +48,55 @@ public class HiDPIUtils
 	 */
 	public static void paintAtScale1x( Graphics2D g, int x, int y, int width, int height, Painter painter ) {
 		// save original transform
-		AffineTransform transform = g.getTransform();
+		AffineTransform t = g.getTransform();
+
+		// get scale X/Y and shear X/Y
+		double scaleX = t.getScaleX();
+		double scaleY = t.getScaleY();
+		double shearX = t.getShearX();
+		double shearY = t.getShearY();
+
+		// check whether rotated
+		// (also check for negative scale X/Y because shear X/Y are zero for 180 degrees rotation)
+		boolean rotated = (shearX != 0 || shearY != 0 || scaleX <= 0 || scaleY <= 0);
+		if( rotated ) {
+			// resulting scale X/Y values are always positive
+			scaleX = Math.hypot( scaleX, shearX );
+			scaleY = Math.hypot( scaleY, shearY );
+		} else {
+			// make scale X/Y positive
+			scaleX = Math.abs( scaleX );
+			scaleY = Math.abs( scaleY );
+		}
 
 		// check whether scaled
-		if( transform.getScaleX() == 1 && transform.getScaleY() == 1 ) {
+		if( scaleX == 1 && scaleY == 1 ) {
 			painter.paint( g, x, y, width, height, 1 );
 			return;
 		}
 
 		// scale rectangle
-		Rectangle2D.Double scaledRect = scale( transform, x, y, width, height );
+		Rectangle2D.Double scaledRect = scale( scaleX, scaleY, t, x, y, width, height );
 
 		try {
-			// unscale to factor 1.0 and move origin (to whole numbers)
-			g.setTransform( new AffineTransform( 1, 0, 0, 1,
-				Math.floor( scaledRect.x ), Math.floor( scaledRect.y ) ) );
+			// unscale to factor 1.0, keep rotation and move origin (to whole numbers)
+			AffineTransform t1x;
+			if( rotated ) {
+				t1x = new AffineTransform( t.getScaleX(), t.getShearY(), t.getShearX(), t.getScaleY(),
+					Math.floor( scaledRect.x ), Math.floor( scaledRect.y ) );
+				t1x.scale( 1. / scaleX, 1. / scaleY );
+			} else
+				t1x = new AffineTransform( 1, 0, 0, 1, Math.floor( scaledRect.x ), Math.floor( scaledRect.y ) );
+			g.setTransform( t1x );
 
 			int swidth = (int) scaledRect.width;
 			int sheight = (int) scaledRect.height;
 
 			// paint
-			painter.paint( g, 0, 0, swidth, sheight, transform.getScaleX() );
+			painter.paint( g, 0, 0, swidth, sheight, scaleX );
 		} finally {
 			// restore original transform
-			g.setTransform( transform );
+			g.setTransform( t );
 		}
 	}
 
@@ -80,20 +105,16 @@ public class HiDPIUtils
 	 * sun.java2d.pipe.PixelToParallelogramConverter.fillRectangle(),
 	 * which is used by Graphics.fillRect().
 	 */
-	private static Rectangle2D.Double scale( AffineTransform transform, int x, int y, int width, int height ) {
-		double dx1 = transform.getScaleX();
-		double dy2 = transform.getScaleY();
-		double px = x * dx1 + transform.getTranslateX();
-		double py = y * dy2 + transform.getTranslateY();
-		dx1 *= width;
-		dy2 *= height;
+	private static Rectangle2D.Double scale( double scaleX, double scaleY, AffineTransform t, int x, int y, int width, int height ) {
+		double px = (x * scaleX) + t.getTranslateX();
+		double py = (y * scaleY) + t.getTranslateY();
 
-		double newx = normalize( px );
-		double newy = normalize( py );
-		dx1 = normalize( px + dx1 ) - newx;
-		dy2 = normalize( py + dy2 ) - newy;
+		double newX = normalize( px );
+		double newY = normalize( py );
+		double newWidth  = normalize( px + (width  * scaleX) ) - newX;
+		double newHeight = normalize( py + (height * scaleY) ) - newY;
 
-		return new Rectangle2D.Double( newx, newy, dx1, dy2 );
+		return new Rectangle2D.Double( newX, newY, newWidth, newHeight );
 	}
 
 	private static double normalize( double value ) {

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

@@ -19,8 +19,9 @@ package com.formdev.flatlaf.util;
 import java.awt.FontMetrics;
 import java.awt.Graphics;
 import java.awt.Graphics2D;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodType;
 import javax.swing.JComponent;
 
 /**
@@ -32,8 +33,8 @@ import javax.swing.JComponent;
  */
 public class JavaCompatibility
 {
-	private static Method drawStringUnderlineCharAtMethod;
-	private static Method getClippedStringMethod;
+	private static MethodHandle drawStringUnderlineCharAtMethod;
+	private static MethodHandle getClippedStringMethod;
 
 	/**
 	 * Java 8: sun.swing.SwingUtilities2.drawStringUnderlineCharAt( JComponent c,
@@ -51,9 +52,10 @@ public class JavaCompatibility
 					Class<?> cls = Class.forName( SystemInfo.isJava_9_orLater
 						? "javax.swing.plaf.basic.BasicGraphicsUtils"
 						: "sun.swing.SwingUtilities2" );
-					drawStringUnderlineCharAtMethod = cls.getMethod( "drawStringUnderlineCharAt", SystemInfo.isJava_9_orLater
+					MethodType mt = MethodType.methodType( void.class, SystemInfo.isJava_9_orLater
 						? new Class[] { JComponent.class, Graphics2D.class, String.class, int.class, float.class, float.class }
 						: new Class[] { JComponent.class, Graphics.class, String.class, int.class, int.class, int.class } );
+					drawStringUnderlineCharAtMethod = MethodHandles.publicLookup().findStatic( cls, "drawStringUnderlineCharAt", mt );
 				} catch( Exception ex ) {
 					LoggingFacade.INSTANCE.logSevere( null, ex );
 					throw new RuntimeException( ex );
@@ -63,10 +65,10 @@ public class JavaCompatibility
 
 		try {
 			if( SystemInfo.isJava_9_orLater )
-				drawStringUnderlineCharAtMethod.invoke( null, c, g, text, underlinedIndex, (float) x, (float) y );
+				drawStringUnderlineCharAtMethod.invoke( c, (Graphics2D) g, text, underlinedIndex, (float) x, (float) y );
 			else
-				drawStringUnderlineCharAtMethod.invoke( null, c, g, text, underlinedIndex, x, y );
-		} catch( IllegalAccessException | IllegalArgumentException | InvocationTargetException ex ) {
+				drawStringUnderlineCharAtMethod.invoke( c, g, text, underlinedIndex, x, y );
+		} catch( Throwable ex ) {
 			LoggingFacade.INSTANCE.logSevere( null, ex );
 			throw new RuntimeException( ex );
 		}
@@ -86,10 +88,11 @@ public class JavaCompatibility
 					Class<?> cls = Class.forName( SystemInfo.isJava_9_orLater
 						? "javax.swing.plaf.basic.BasicGraphicsUtils"
 						: "sun.swing.SwingUtilities2" );
-					getClippedStringMethod = cls.getMethod( SystemInfo.isJava_9_orLater
+					MethodType mt = MethodType.methodType( String.class, JComponent.class, FontMetrics.class, String.class, int.class );
+					getClippedStringMethod = MethodHandles.publicLookup().findStatic( cls, SystemInfo.isJava_9_orLater
 							? "getClippedString"
 							: "clipStringIfNecessary",
-						JComponent.class, FontMetrics.class, String.class, int.class );
+						mt );
 				} catch( Exception ex ) {
 					LoggingFacade.INSTANCE.logSevere( null, ex );
 					throw new RuntimeException( ex );
@@ -98,8 +101,8 @@ public class JavaCompatibility
 		}
 
 		try {
-			return (String) getClippedStringMethod.invoke( null, c, fm, string, availTextWidth );
-		} catch( IllegalAccessException | IllegalArgumentException | InvocationTargetException ex ) {
+			return (String) getClippedStringMethod.invoke( c, fm, string, availTextWidth );
+		} catch( Throwable ex ) {
 			LoggingFacade.INSTANCE.logSevere( null, ex );
 			throw new RuntimeException( ex );
 		}

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

@@ -138,21 +138,24 @@ public class NativeLibrary
 			System.load( libraryFile.getAbsolutePath() );
 			return true;
 		} catch( Throwable ex ) {
-			log( null, ex );
+			log( ex.getMessage(), ex );
 			return false;
 		}
 	}
 
+	/**
+	 * Add prefix and suffix to library name.
+	 * <ul>
+	 * <li>Windows: libraryName + ".dll"
+	 * <li>macOS: "lib" + libraryName + ".dylib"
+	 * <li>Linux: "lib" + libraryName + ".so"
+	 * </ul>
+	 */
 	private static String decorateLibraryName( String libraryName ) {
-		if( SystemInfo.isWindows )
-			return libraryName.concat( ".dll" );
-
-		String suffix = SystemInfo.isMacOS ? ".dylib" : ".so";
-
 		int sep = libraryName.lastIndexOf( '/' );
 		return (sep >= 0)
-			? libraryName.substring( 0, sep + 1 ) + "lib" + libraryName.substring( sep + 1 ) + suffix
-			: "lib" + libraryName + suffix;
+			? libraryName.substring( 0, sep + 1 ) + System.mapLibraryName( libraryName.substring( sep + 1 ) )
+			: System.mapLibraryName( libraryName );
 	}
 
 	private static void log( String msg, Throwable thrown ) {

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

@@ -50,6 +50,7 @@ public class SystemInfo
 	public static final long javaVersion;
 	public static final boolean isJava_9_orLater;
 	public static final boolean isJava_11_orLater;
+	/** @since 2.3 */ public static final boolean isJava_12_orLater;
 	public static final boolean isJava_15_orLater;
 	/** @since 2 */ public static final boolean isJava_17_orLater;
 	/** @since 2 */ public static final boolean isJava_18_orLater;
@@ -66,6 +67,9 @@ public class SystemInfo
 	/** @since 1.1.2 */ public static final boolean isWebswing;
 	/** @since 1.1.1 */ public static final boolean isWinPE;
 
+	// features
+	/** @since 2.3 */ public static final boolean isMacFullWindowContentSupported;
+
 	static {
 		// platforms
 		String osName = System.getProperty( "os.name" ).toLowerCase( Locale.ENGLISH );
@@ -92,6 +96,7 @@ public class SystemInfo
 		javaVersion = scanVersion( System.getProperty( "java.version" ) );
 		isJava_9_orLater = (javaVersion >= toVersion( 9, 0, 0, 0 ));
 		isJava_11_orLater = (javaVersion >= toVersion( 11, 0, 0, 0 ));
+		isJava_12_orLater = (javaVersion >= toVersion( 12, 0, 0, 0 ));
 		isJava_15_orLater = (javaVersion >= toVersion( 15, 0, 0, 0 ));
 		isJava_17_orLater = (javaVersion >= toVersion( 17, 0, 0, 0 ));
 		isJava_18_orLater = (javaVersion >= toVersion( 18, 0, 0, 0 ));
@@ -108,6 +113,12 @@ public class SystemInfo
 		isProjector = Boolean.getBoolean( "org.jetbrains.projector.server.enable" );
 		isWebswing = (System.getProperty( "webswing.rootDir" ) != null);
 		isWinPE = isWindows && "X:\\Windows\\System32".equalsIgnoreCase( System.getProperty( "user.dir" ) );
+
+		// features
+		// available since Java 12; backported to Java 11.0.8 and 8u292
+		isMacFullWindowContentSupported =
+			javaVersion >= toVersion( 11, 0, 8, 0 ) ||
+			(javaVersion >= toVersion( 1, 8, 0, 292 ) && !isJava_9_orLater);
 	}
 
 	public static long scanVersion( String version ) {

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

@@ -306,6 +306,7 @@ SplitPaneDivider.draggingColor = $Component.borderColor
 #---- TabbedPane ----
 
 TabbedPane.underlineColor = @accentUnderlineColor
+TabbedPane.inactiveUnderlineColor = mix(@accentUnderlineColor,$TabbedPane.background,60%)
 TabbedPane.disabledUnderlineColor = lighten(@background,23%)
 TabbedPane.hoverColor = darken($TabbedPane.background,5%,derived noAutoInverse)
 TabbedPane.focusColor = mix(@selectionBackground,$TabbedPane.background,25%)
@@ -324,7 +325,7 @@ TabbedPane.closePressedForeground = $TabbedPane.closeHoverForeground
 
 #---- Table ----
 
-Table.gridColor = lighten($Table.background,5%)
+Table.gridColor = lighten($Table.background,8%)
 
 
 #---- TableHeader ----

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

@@ -64,7 +64,7 @@ light.font = +0
 semibold.font = +0
 
 # monospaced
-[win]monospaced.font = Consolas, "Courier New", Monospaced
+[win]monospaced.font = Monospaced
 [mac]monospaced.font = Menlo, Monospaced
 [linux]monospaced.font = "Liberation Mono", "Ubuntu Mono", Monospaced
 monospaced.font = Monospaced
@@ -332,6 +332,7 @@ FileView.fileIcon = com.formdev.flatlaf.icons.FlatFileViewFileIcon
 FileView.computerIcon = com.formdev.flatlaf.icons.FlatFileViewComputerIcon
 FileView.hardDriveIcon = com.formdev.flatlaf.icons.FlatFileViewHardDriveIcon
 FileView.floppyDriveIcon = com.formdev.flatlaf.icons.FlatFileViewFloppyDriveIcon
+FileView.fullRowSelection = true
 
 
 #---- FormattedTextField ----
@@ -441,8 +442,8 @@ MenuItem.iconTextGap = 6
 MenuItem.textAcceleratorGap = 24
 MenuItem.textNoAcceleratorGap = 6
 MenuItem.acceleratorArrowGap = 2
-MenuItem.acceleratorDelimiter = +
-[mac]MenuItem.acceleratorDelimiter = 
+MenuItem.acceleratorDelimiter = "+"
+[mac]MenuItem.acceleratorDelimiter = ""
 
 # for MenuItem.selectionType = underline
 MenuItem.underlineSelectionBackground = @menuHoverBackground
@@ -784,15 +785,21 @@ TitlePane.useWindowDecorations = true
 TitlePane.menuBarEmbedded = true
 TitlePane.unifiedBackground = true
 TitlePane.showIcon = true
+TitlePane.showIconInDialogs = true
 TitlePane.noIconLeftGap = 8
 TitlePane.iconSize = 16,16
 TitlePane.iconMargins = 3,8,3,8
 TitlePane.titleMargins = 3,0,3,0
+TitlePane.titleMinimumWidth = 60
 TitlePane.buttonSize = 44,30
+TitlePane.buttonMinimumWidth = 30
 TitlePane.buttonMaximizedHeight = 22
 TitlePane.centerTitle = false
 TitlePane.centerTitleIfMenuBarEmbedded = true
-TitlePane.menuBarTitleGap = 20
+TitlePane.showIconBesideTitle = false
+TitlePane.menuBarTitleGap = 40
+TitlePane.menuBarTitleMinimumGap = 12
+TitlePane.menuBarResizeHeight = 4
 TitlePane.closeIcon = com.formdev.flatlaf.icons.FlatWindowCloseIcon
 TitlePane.iconifyIcon = com.formdev.flatlaf.icons.FlatWindowIconifyIcon
 TitlePane.maximizeIcon = com.formdev.flatlaf.icons.FlatWindowMaximizeIcon
@@ -828,6 +835,7 @@ ToggleButton.tab.underlineHeight = 2
 ToggleButton.tab.underlineColor = $TabbedPane.underlineColor
 ToggleButton.tab.disabledUnderlineColor = $TabbedPane.disabledUnderlineColor
 ToggleButton.tab.selectedBackground = $?TabbedPane.selectedBackground
+ToggleButton.tab.selectedForeground = $?TabbedPane.selectedForeground
 ToggleButton.tab.hoverBackground = $TabbedPane.hoverColor
 ToggleButton.tab.focusBackground = $TabbedPane.focusColor
 

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

@@ -313,6 +313,7 @@ SplitPaneDivider.draggingColor = $Component.borderColor
 #---- TabbedPane ----
 
 TabbedPane.underlineColor = @accentUnderlineColor
+TabbedPane.inactiveUnderlineColor = mix(@accentUnderlineColor,$TabbedPane.background,50%)
 TabbedPane.disabledUnderlineColor = darken(@background,28%)
 TabbedPane.hoverColor = darken($TabbedPane.background,7%,derived)
 TabbedPane.focusColor = mix(@selectionBackground,$TabbedPane.background,10%)
@@ -331,7 +332,7 @@ TabbedPane.closePressedForeground = $TabbedPane.closeHoverForeground
 
 #---- Table ----
 
-Table.gridColor = darken($Table.background,5%)
+Table.gridColor = darken($Table.background,8%)
 
 
 #---- TableHeader ----

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

@@ -67,6 +67,11 @@ Button.default.hoverBorderColor = null
 [dark]CheckBoxMenuItem.icon.checkmarkColor=#fff9
 
 
+#---- Component ----
+
+Component.accentColor = lazy(ProgressBar.foreground)
+
+
 #---- HelpButton ----
 
 HelpButton.hoverBorderColor = null
@@ -77,6 +82,13 @@ HelpButton.hoverBorderColor = null
 Slider.focusedColor = fade($Component.focusColor,40%,derived)
 
 
+#---- TabbedPane ----
+
+# colors from JBUI.CurrentTheme.DefaultTabs.inactiveUnderlineColor()
+[light]TabbedPane.inactiveUnderlineColor = #9ca7b8
+[dark]TabbedPane.inactiveUnderlineColor = #747a80
+
+
 #---- ToggleButton ----
 
 ToggleButton.startBackground = $ToggleButton.background
@@ -121,6 +133,7 @@ ToggleButton.endBackground = $ToggleButton.background
 [Arc_Theme_Dark_-_Orange]ProgressBar.selectionBackground = #ddd
 [Arc_Theme_Dark_-_Orange]ProgressBar.selectionForeground = #fff
 
+[Cobalt_2]Component.accentColor = lazy(Component.focusColor)
 [Cobalt_2]CheckBox.icon.background = #002946
 [Cobalt_2]CheckBox.icon.checkmarkColor = #002946
 [Cobalt_2]MenuItem.checkBackground = @ijMenuCheckBackgroundL10
@@ -129,31 +142,39 @@ ToggleButton.endBackground = $ToggleButton.background
 [Cyan_light]MenuItem.checkBackground = @ijMenuCheckBackgroundL20
 [Cyan_light]MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL20
 
+[Dark_Flat_Theme]Component.accentColor = lazy(List.selectionBackground)
 [Dark_Flat_Theme]TableHeader.background = #3B3B3B
 
 [Dark_purple]Slider.focusedColor = fade($Component.focusColor,70%,derived)
 
+[Dracula---Zihan_Ma]Component.accentColor = lazy(Component.focusColor)
 [Dracula---Zihan_Ma]ProgressBar.selectionBackground = #fff
 [Dracula---Zihan_Ma]ProgressBar.selectionForeground = #fff
 
 [Gradianto_Dark_Fuchsia]MenuItem.checkBackground = @ijMenuCheckBackgroundL10
 [Gradianto_Dark_Fuchsia]MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL10
 
+[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_Medium]Component.accentColor = lazy(TabbedPane.underlineColor)
 [Gruvbox_Dark_Medium]ToggleButton.selectedBackground = $ToggleButton.selectedBackground
 [Gruvbox_Dark_Medium]ToggleButton.toolbar.selectedBackground = $ToggleButton.toolbar.selectedBackground
 
+[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
 
 [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
 
+[High_contrast]Component.accentColor = lazy(Component.focusColor)
 [High_contrast]ToggleButton.selectedBackground = #fff
 [High_contrast]ToggleButton.selectedForeground = #000
 [High_contrast]ToggleButton.disabledSelectedBackground = #444
@@ -164,6 +185,7 @@ ToggleButton.endBackground = $ToggleButton.background
 	toolbar.selectedBackground: #fff
 [High_contrast][style]ToggleButton.inTextField = $[High_contrast][style]Button.inTextField
 
+[Light_Flat]Component.accentColor = lazy(TabbedPane.underlineColor)
 [Light_Flat]TableHeader.background = #E5E5E9
 
 [Monocai]MenuItem.checkBackground = @ijMenuCheckBackgroundL10
@@ -179,6 +201,8 @@ ToggleButton.endBackground = $ToggleButton.background
 [Monocai]RadioButtonMenuItem.acceleratorForeground = @Monocai.acceleratorForeground
 [Monocai]RadioButtonMenuItem.acceleratorSelectionForeground = @Monocai.acceleratorSelectionForeground
 
+[Monokai_Pro]TitledBorder.titleColor = @foreground
+
 [Nord]MenuItem.checkBackground = @ijMenuCheckBackgroundL10
 [Nord]MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL10
 
@@ -186,8 +210,12 @@ ToggleButton.endBackground = $ToggleButton.background
 [One_Dark]MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL10
 [One_Dark]Slider.focusedColor = fade(#568af2,40%)
 
+[Solarized_Dark---4lex4]Component.accentColor = lazy(TabbedPane.underlineColor)
 [Solarized_Dark---4lex4]Slider.focusedColor = fade($Component.focusColor,80%,derived)
 
+[Solarized_Light---4lex4]Component.accentColor = lazy(TabbedPane.underlineColor)
+
+[vuesion-theme]Component.accentColor = lazy(Button.default.endBackground)
 [vuesion-theme]MenuItem.checkBackground = @ijMenuCheckBackgroundL10
 [vuesion-theme]MenuItem.underlineSelectionCheckBackground = @ijMenuCheckBackgroundL10
 [vuesion-theme]Slider.trackValueColor = #ececee

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

@@ -0,0 +1,65 @@
+#
+# 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.
+#
+
+#---- FileChooser ----
+
+#fields
+FileChooser.lookInLabel.textAndMnemonic = Buscar &en:
+FileChooser.saveInLabelText = Guardar en:
+FileChooser.fileNameLabel.textAndMnemonic = &Nombre de fichero:
+FileChooser.folderNameLabel.textAndMnemonic = &Nombre de carpeta:
+FileChooser.filesOfTypeLabel.textAndMnemonic = Ficheros de &Tipo:
+
+# toolbar
+FileChooser.upFolderToolTipText = Subir un nivel
+FileChooser.upFolderAccessibleName = Subir
+FileChooser.homeFolderToolTipText = Inicio
+FileChooser.homeFolderAccessibleName = Inicio
+FileChooser.newFolderToolTipText = Crear nueva carpeta
+FileChooser.newFolderAccessibleName = Nueva carpeta
+FileChooser.listViewButtonToolTipText = Lista
+FileChooser.listViewButtonAccessibleName = Lista
+FileChooser.detailsViewButtonToolTipText = Detalles
+FileChooser.detailsViewButtonAccessibleName = Detalles
+
+# details table header
+FileChooser.fileNameHeaderText = Nombre
+FileChooser.fileSizeHeaderText = Tama\u00F1o
+FileChooser.fileTypeHeaderText = Tipo
+FileChooser.fileDateHeaderText = Modificado
+FileChooser.fileAttrHeaderText = Atributos
+
+# popup menu
+FileChooser.viewMenuLabelText = Ver
+FileChooser.refreshActionLabelText = Refrescar
+FileChooser.newFolderActionLabelText = Nueva carpeta
+FileChooser.listViewActionLabelText = Lista
+FileChooser.detailsViewActionLabelText = Detalles
+
+
+#---- SplitPaneDivider ----
+
+SplitPaneDivider.collapseLeftToolTipText = Contraer Panel Izquierdo
+SplitPaneDivider.collapseRightToolTipText = Contraer panel Derecho
+SplitPaneDivider.collapseTopToolTipText = Contraer panel Superior
+SplitPaneDivider.collapseBottomToolTipText = Contraer Panel Inferior
+SplitPaneDivider.expandLeftToolTipText = Expandir Panel Izquierdo
+SplitPaneDivider.expandRightToolTipText = Expandir Panel Derecho
+SplitPaneDivider.expandTopToolTipText = Expandir Panel Superior
+SplitPaneDivider.expandBottomToolTipText = Expandir Panel Inferior
+
+
+#---- TabbedPane ----
+
+TabbedPane.moreTabsButtonToolTipText = Mostrar Pesta\u00F1as Ocultas

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

@@ -96,19 +96,26 @@ public class TestFlatStyleableInfo
 			"minimumWidth", int.class,
 
 			"focusedBackground", Color.class,
+			"focusedForeground", Color.class,
 			"hoverBackground", Color.class,
+			"hoverForeground", Color.class,
 			"pressedBackground", Color.class,
+			"pressedForeground", Color.class,
 			"selectedBackground", Color.class,
 			"selectedForeground", Color.class,
 			"disabledBackground", Color.class,
 			"disabledText", Color.class,
 			"disabledSelectedBackground", Color.class,
+			"disabledSelectedForeground", Color.class,
 
 			"default.background", Color.class,
 			"default.foreground", Color.class,
 			"default.focusedBackground", Color.class,
+			"default.focusedForeground", Color.class,
 			"default.hoverBackground", Color.class,
+			"default.hoverForeground", Color.class,
 			"default.pressedBackground", Color.class,
+			"default.pressedForeground", Color.class,
 			"default.boldText", boolean.class,
 
 			"paintShadow", boolean.class,
@@ -118,8 +125,13 @@ public class TestFlatStyleableInfo
 
 			"toolbar.spacingInsets", Insets.class,
 			"toolbar.hoverBackground", Color.class,
+			"toolbar.hoverForeground", Color.class,
 			"toolbar.pressedBackground", Color.class,
+			"toolbar.pressedForeground", Color.class,
 			"toolbar.selectedBackground", Color.class,
+			"toolbar.selectedForeground", Color.class,
+			"toolbar.disabledSelectedBackground", Color.class,
+			"toolbar.disabledSelectedForeground", Color.class,
 
 			"buttonType", String.class,
 			"squareSize", boolean.class,
@@ -272,6 +284,8 @@ public class TestFlatStyleableInfo
 		Map<String, Class<?>> expected = expectedMap(
 			"itemMargins", Insets.class,
 			"hoverBackground", Color.class,
+			"selectionBackground", Color.class,
+			"selectionForeground", Color.class,
 			"underlineSelectionBackground", Color.class,
 			"underlineSelectionColor", Color.class,
 			"underlineSelectionHeight", int.class,
@@ -693,6 +707,7 @@ public class TestFlatStyleableInfo
 			"selectedBackground", Color.class,
 			"selectedForeground", Color.class,
 			"underlineColor", Color.class,
+			"inactiveUnderlineColor", Color.class,
 			"disabledUnderlineColor", Color.class,
 			"hoverColor", Color.class,
 			"focusColor", Color.class,
@@ -709,6 +724,7 @@ public class TestFlatStyleableInfo
 			"tabSeparatorsFullHeight", boolean.class,
 			"hasFullBorder", boolean.class,
 			"tabsOpaque", boolean.class,
+			"rotateTabRuns", boolean.class,
 
 			"tabType", String.class,
 			"tabsPopupPolicy", String.class,
@@ -862,8 +878,11 @@ public class TestFlatStyleableInfo
 			"tab.underlineColor", Color.class,
 			"tab.disabledUnderlineColor", Color.class,
 			"tab.selectedBackground", Color.class,
+			"tab.selectedForeground", Color.class,
 			"tab.hoverBackground", Color.class,
-			"tab.focusBackground", Color.class
+			"tab.hoverForeground", Color.class,
+			"tab.focusBackground", Color.class,
+			"tab.focusForeground", Color.class
 		);
 
 		// FlatToggleButtonUI extends FlatButtonUI

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

@@ -221,19 +221,26 @@ public class TestFlatStyling
 		ui.applyStyle( b, "minimumWidth: 100" );
 
 		ui.applyStyle( b, "focusedBackground: #fff" );
+		ui.applyStyle( b, "focusedForeground: #fff" );
 		ui.applyStyle( b, "hoverBackground: #fff" );
+		ui.applyStyle( b, "hoverForeground: #fff" );
 		ui.applyStyle( b, "pressedBackground: #fff" );
+		ui.applyStyle( b, "pressedForeground: #fff" );
 		ui.applyStyle( b, "selectedBackground: #fff" );
 		ui.applyStyle( b, "selectedForeground: #fff" );
 		ui.applyStyle( b, "disabledBackground: #fff" );
 		ui.applyStyle( b, "disabledText: #fff" );
 		ui.applyStyle( b, "disabledSelectedBackground: #fff" );
+		ui.applyStyle( b, "disabledSelectedForeground: #fff" );
 
 		ui.applyStyle( b, "default.background: #fff" );
 		ui.applyStyle( b, "default.foreground: #fff" );
 		ui.applyStyle( b, "default.focusedBackground: #fff" );
+		ui.applyStyle( b, "default.focusedForeground: #fff" );
 		ui.applyStyle( b, "default.hoverBackground: #fff" );
+		ui.applyStyle( b, "default.hoverForeground: #fff" );
 		ui.applyStyle( b, "default.pressedBackground: #fff" );
+		ui.applyStyle( b, "default.pressedForeground: #fff" );
 		ui.applyStyle( b, "default.boldText: true" );
 
 		ui.applyStyle( b, "paintShadow: true" );
@@ -243,8 +250,13 @@ public class TestFlatStyling
 
 		ui.applyStyle( b, "toolbar.spacingInsets: 1,2,3,4" );
 		ui.applyStyle( b, "toolbar.hoverBackground: #fff" );
+		ui.applyStyle( b, "toolbar.hoverForeground: #fff" );
 		ui.applyStyle( b, "toolbar.pressedBackground: #fff" );
+		ui.applyStyle( b, "toolbar.pressedForeground: #fff" );
 		ui.applyStyle( b, "toolbar.selectedBackground: #fff" );
+		ui.applyStyle( b, "toolbar.selectedForeground: #fff" );
+		ui.applyStyle( b, "toolbar.disabledSelectedBackground: #fff" );
+		ui.applyStyle( b, "toolbar.disabledSelectedForeground: #fff" );
 
 		ui.applyStyle( b, "buttonType: help" );
 		ui.applyStyle( b, "squareSize: true" );
@@ -424,6 +436,8 @@ public class TestFlatStyling
 
 		ui.applyStyle( "itemMargins: 1,2,3,4" );
 		ui.applyStyle( "hoverBackground: #fff" );
+		ui.applyStyle( "selectionBackground: #fff" );
+		ui.applyStyle( "selectionForeground: #fff" );
 		ui.applyStyle( "underlineSelectionBackground: #fff" );
 		ui.applyStyle( "underlineSelectionColor: #fff" );
 		ui.applyStyle( "underlineSelectionHeight: 3" );
@@ -862,6 +876,7 @@ public class TestFlatStyling
 		ui.applyStyle( "selectedBackground: #fff" );
 		ui.applyStyle( "selectedForeground: #fff" );
 		ui.applyStyle( "underlineColor: #fff" );
+		ui.applyStyle( "inactiveUnderlineColor: #fff" );
 		ui.applyStyle( "disabledUnderlineColor: #fff" );
 		ui.applyStyle( "hoverColor: #fff" );
 		ui.applyStyle( "focusColor: #fff" );
@@ -878,6 +893,7 @@ public class TestFlatStyling
 		ui.applyStyle( "tabSeparatorsFullHeight: false" );
 		ui.applyStyle( "hasFullBorder: false" );
 		ui.applyStyle( "tabsOpaque: false" );
+		ui.applyStyle( "rotateTabRuns: false" );
 
 		ui.applyStyle( "tabType: card" );
 		ui.applyStyle( "tabsPopupPolicy: asNeeded" );
@@ -1072,8 +1088,11 @@ public class TestFlatStyling
 		ui.applyStyle( b, "tab.underlineColor: #fff" );
 		ui.applyStyle( b, "tab.disabledUnderlineColor: #fff" );
 		ui.applyStyle( b, "tab.selectedBackground: #fff" );
+		ui.applyStyle( b, "tab.selectedForeground: #fff" );
 		ui.applyStyle( b, "tab.hoverBackground: #fff" );
+		ui.applyStyle( b, "tab.hoverForeground: #fff" );
 		ui.applyStyle( b, "tab.focusBackground: #fff" );
+		ui.applyStyle( b, "tab.focusForeground: #fff" );
 	}
 
 	@Test

flatlaf-core/svg/ArrowButton-chevron.svg

@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="8" height="4" viewBox="0 0 8 4">
+  <polyline fill="none" stroke="#6E6E6E" points="0 4 4 0 8 4"/>
+</svg>

flatlaf-core/svg/ArrowButton-triangle.svg

@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="9" height="5" viewBox="0 0 9 5">
+  <polygon fill="#6E6E6E" fill-rule="evenodd" points="0 5 4.5 0 9 5"/>
+</svg>

flatlaf-core/svg/AscendingSortIcon-chevron.svg

@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="10" height="5" viewBox="0 0 10 5">
+  <polyline fill="none" stroke="#6E6E6E" points="1 4 5 0 9 4"/>
+</svg>

flatlaf-core/svg/AscendingSortIcon-triangle.svg

@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="10" height="5" viewBox="0 0 10 5">
+  <polygon fill="#6E6E6E" fill-rule="evenodd" points=".5 5 5 0 9.5 5"/>
+</svg>