Styling: Extras: add style getters and setters to component classes

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

@@ -127,12 +127,21 @@ public interface FlatClientProperties
 	//---- JComponent ---------------------------------------------------------
 
 	/**
-	 * Specifies the style of a component in CSS syntax ("key1: value1; key2: value2; ...").
+	 * Specifies the style of a component as String in CSS syntax ("key1: value1; key2: value2; ...")
+	 * or as {@link java.util.Map}<String, Object> with binary values.
+	 * <p>
+	 * The keys are the same as used in UI defaults, but without component type prefix.
+	 * E.g. for UI default {@code Slider.thumbSize} use key {@code thumbSize}.
+	 * <p>
+	 * The syntax of the CSS values is the same as used in FlatLaf properties files
+	 * (<a href="https://www.formdev.com/flatlaf/properties-files/">https://www.formdev.com/flatlaf/properties-files/</a>),
+	 * but some features are not supported (e.g. variables).
+	 * When using a map, the values are not parsed from a string. They must be binary.
 	 * <p>
 	 * <strong>Components</strong> {@link javax.swing.JComponent}<br>
 	 * <strong>Value type</strong> {@link java.lang.String} or {@link java.util.Map}&lt;String, Object&gt;<br>
 	 *
-	 * @since TODO
+	 * @since 2
 	 */
 	String STYLE = "FlatLaf.style";
 

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatButton.java

@@ -27,7 +27,7 @@ import javax.swing.JButton;
  */
 public class FlatButton
 	extends JButton
-	implements FlatComponentExtension
+	implements FlatComponentExtension, FlatStyleableComponent
 {
 	// NOTE: enum names must be equal to allowed strings
 	public enum ButtonType { none, square, roundRect, tab, help, toolBarButton, borderless }

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatCheckBox.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JCheckBox;
+
+/**
+ * Subclass of {@link JCheckBox} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatCheckBox
+	extends JCheckBox
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatCheckBoxMenuItem.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JCheckBoxMenuItem;
+
+/**
+ * Subclass of {@link JCheckBoxMenuItem} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatCheckBoxMenuItem
+	extends JCheckBoxMenuItem
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatComboBox.java

@@ -27,7 +27,7 @@ import javax.swing.JComboBox;
  */
 public class FlatComboBox<E>
 	extends JComboBox<E>
-	implements FlatComponentExtension
+	implements FlatComponentExtension, FlatStyleableComponent
 {
 	/**
 	 * Returns the placeholder text that is only painted if the editable combo box is empty.

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatEditorPane.java

@@ -26,7 +26,7 @@ import javax.swing.JEditorPane;
  */
 public class FlatEditorPane
 	extends JEditorPane
-	implements FlatComponentExtension
+	implements FlatComponentExtension, FlatStyleableComponent
 {
 	/**
 	 * Returns minimum width of a component.

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatFormattedTextField.java

@@ -29,7 +29,7 @@ import com.formdev.flatlaf.extras.components.FlatTextField.SelectAllOnFocusPolic
  */
 public class FlatFormattedTextField
 	extends JFormattedTextField
-	implements FlatComponentExtension
+	implements FlatComponentExtension, FlatStyleableComponent
 {
 	/**
 	 * Returns the placeholder text that is only painted if the text field is empty.

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatInternalFrame.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JInternalFrame;
+
+/**
+ * Subclass of {@link JInternalFrame} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatInternalFrame
+	extends JInternalFrame
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatLabel.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JLabel;
+
+/**
+ * Subclass of {@link JLabel} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatLabel
+	extends JLabel
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatList.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JList;
+
+/**
+ * Subclass of {@link JList} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatList<E>
+	extends JList<E>
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatMenu.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JMenu;
+
+/**
+ * Subclass of {@link JMenu} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatMenu
+	extends JMenu
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatMenuBar.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JMenuBar;
+
+/**
+ * Subclass of {@link JMenuBar} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatMenuBar
+	extends JMenuBar
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatMenuItem.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JMenuItem;
+
+/**
+ * Subclass of {@link JMenuItem} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatMenuItem
+	extends JMenuItem
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatPasswordField.java

@@ -29,7 +29,7 @@ import com.formdev.flatlaf.extras.components.FlatTextField.SelectAllOnFocusPolic
  */
 public class FlatPasswordField
 	extends JPasswordField
-	implements FlatComponentExtension
+	implements FlatComponentExtension, FlatStyleableComponent
 {
 	/**
 	 * Returns the placeholder text that is only painted if the text field is empty.

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatPopupMenu.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JPopupMenu;
+
+/**
+ * Subclass of {@link JPopupMenu} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatPopupMenu
+	extends JPopupMenu
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatPopupMenuSeparator.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JPopupMenu;
+
+/**
+ * Subclass of {@link JPopupMenu.Separator} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatPopupMenuSeparator
+	extends JPopupMenu.Separator
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatProgressBar.java

@@ -26,7 +26,7 @@ import javax.swing.JProgressBar;
  */
 public class FlatProgressBar
 	extends JProgressBar
-	implements FlatComponentExtension
+	implements FlatComponentExtension, FlatStyleableComponent
 {
 	/**
 	 * Returns whether the progress bar has always the larger height even if no string is painted.

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatRadioButton.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JRadioButton;
+
+/**
+ * Subclass of {@link JRadioButton} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatRadioButton
+	extends JRadioButton
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatRadioButtonMenuItem.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JRadioButtonMenuItem;
+
+/**
+ * Subclass of {@link JRadioButtonMenuItem} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatRadioButtonMenuItem
+	extends JRadioButtonMenuItem
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatScrollBar.java

@@ -26,7 +26,7 @@ import javax.swing.JScrollBar;
  */
 public class FlatScrollBar
 	extends JScrollBar
-	implements FlatComponentExtension
+	implements FlatComponentExtension, FlatStyleableComponent
 {
 	/**
 	 * Returns whether the decrease/increase arrow buttons of a scrollbar are shown.

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatScrollPane.java

@@ -27,7 +27,7 @@ import javax.swing.JScrollPane;
  */
 public class FlatScrollPane
 	extends JScrollPane
-	implements FlatComponentExtension
+	implements FlatComponentExtension, FlatStyleableComponent
 {
 	/**
 	 * Returns whether the decrease/increase arrow buttons of a scrollbar are shown.

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatSeparator.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JSeparator;
+
+/**
+ * Subclass of {@link JSeparator} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatSeparator
+	extends JSeparator
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatSlider.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JSlider;
+
+/**
+ * Subclass of {@link JSlider} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatSlider
+	extends JSlider
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatSpinner.java

@@ -27,7 +27,7 @@ import javax.swing.JSpinner;
  */
 public class FlatSpinner
 	extends JSpinner
-	implements FlatComponentExtension
+	implements FlatComponentExtension, FlatStyleableComponent
 {
 	/**
 	 * Returns minimum width of a component.

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatSplitPane.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JSplitPane;
+
+/**
+ * Subclass of {@link JSplitPane} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatSplitPane
+	extends JSplitPane
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatStyleableComponent.java

@@ -0,0 +1,88 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import java.util.Map;
+import javax.swing.JComponent;
+import com.formdev.flatlaf.FlatClientProperties;
+
+/**
+ * Interface for all styleable FlatLaf components.
+ * <p>
+ * If you already have custom subclasses of Swing components, you can add this interface
+ * to your components to add styling getter and setter methods to them.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public interface FlatStyleableComponent
+{
+	/**
+	 * Returns the style of a component as String in CSS syntax ("key1: value1; key2: value2; ...")
+	 * or {@code null} if no style has been assigned.
+	 */
+	default String getStyle() {
+		return (String) getClientProperty( FlatClientProperties.STYLE );
+	}
+
+	/**
+	 * Specifies the style of a component as String in CSS syntax ("key1: value1; key2: value2; ...").
+	 * <p>
+	 * The keys are the same as used in UI defaults, but without component type prefix.
+	 * E.g. for UI default {@code Slider.thumbSize} use key {@code thumbSize}.
+	 * <p>
+	 * The syntax of the CSS values is the same as used in FlatLaf properties files
+	 * (<a href="https://www.formdev.com/flatlaf/properties-files/">https://www.formdev.com/flatlaf/properties-files/</a>),
+	 * but some features are not supported (e.g. variables).
+	 */
+	default void setStyle( String style ) {
+		putClientProperty( FlatClientProperties.STYLE, style );
+	}
+
+
+	/**
+	 * Returns the style of a component as {@link java.util.Map}&lt;String, Object&gt;
+	 * or {@code null} if no style has been assigned.
+	 */
+	@SuppressWarnings( "unchecked" )
+	default Map<String, Object> getStyleMap() {
+		return (Map<String, Object>) getClientProperty( FlatClientProperties.STYLE );
+	}
+
+	/**
+	 * Specifies the style of a component as {@link java.util.Map}&lt;String, Object&gt; with binary values.
+	 * <p>
+	 * The keys are the same as used in UI defaults, but without component type prefix.
+	 * E.g. for UI default {@code Slider.thumbSize} use key {@code thumbSize}.
+	 * <p>
+	 * The values are not parsed from a string. They must be binary.
+	 */
+	default void setStyleMap( Map<String, Object> styleMap ) {
+		putClientProperty( FlatClientProperties.STYLE, styleMap );
+	}
+
+
+	/**
+	 * Overrides {@link JComponent#getClientProperty(Object)}.
+	 */
+	Object getClientProperty( Object key );
+
+	/**
+	 * Overrides {@link JComponent#putClientProperty(Object, Object)}.
+	 */
+	void putClientProperty( Object key, Object value );
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatTabbedPane.java

@@ -31,7 +31,7 @@ import javax.swing.SwingConstants;
  */
 public class FlatTabbedPane
 	extends JTabbedPane
-	implements FlatComponentExtension
+	implements FlatComponentExtension, FlatStyleableComponent
 {
 	/**
 	 * Returns whether separators are shown between tabs.

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatTable.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JTable;
+
+/**
+ * Subclass of {@link JTable} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatTable
+	extends JTable
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatTableHeader.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.table.JTableHeader;
+
+/**
+ * Subclass of {@link JTableHeader} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatTableHeader
+	extends JTableHeader
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatTextArea.java

@@ -26,7 +26,7 @@ import javax.swing.JTextArea;
  */
 public class FlatTextArea
 	extends JTextArea
-	implements FlatComponentExtension
+	implements FlatComponentExtension, FlatStyleableComponent
 {
 	/**
 	 * Returns minimum width of a component.

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatTextField.java

@@ -28,7 +28,7 @@ import javax.swing.JTextField;
  */
 public class FlatTextField
 	extends JTextField
-	implements FlatComponentExtension
+	implements FlatComponentExtension, FlatStyleableComponent
 {
 	/**
 	 * Returns the placeholder text that is only painted if the text field is empty.

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatTextPane.java

@@ -26,7 +26,7 @@ import javax.swing.JTextPane;
  */
 public class FlatTextPane
 	extends JTextPane
-	implements FlatComponentExtension
+	implements FlatComponentExtension, FlatStyleableComponent
 {
 	/**
 	 * Returns minimum width of a component.

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatToggleButton.java

@@ -28,7 +28,7 @@ import com.formdev.flatlaf.extras.components.FlatButton.ButtonType;
  */
 public class FlatToggleButton
 	extends JToggleButton
-	implements FlatComponentExtension
+	implements FlatComponentExtension, FlatStyleableComponent
 {
 	/**
 	 * Returns type of a button.

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatToolBar.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JToolBar;
+
+/**
+ * Subclass of {@link JToolBar} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatToolBar
+	extends JToolBar
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatToolBarSeparator.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 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.extras.components;
+
+import javax.swing.JToolBar;
+
+/**
+ * Subclass of {@link JToolBar.Separator} that provides easy access to FlatLaf specific client properties.
+ *
+ * @author Karl Tauber
+ * @since 2
+ */
+public class FlatToolBarSeparator
+	extends JToolBar.Separator
+	implements FlatStyleableComponent
+{
+}

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatTree.java

@@ -22,10 +22,11 @@ import javax.swing.JTree;
 /**
  * Subclass of {@link JTree} that provides easy access to FlatLaf specific client properties.
  *
+ * @author Karl Tauber
  */
 public class FlatTree
 	extends JTree
-	implements FlatComponentExtension
+	implements FlatComponentExtension, FlatStyleableComponent
 {
 	/**
 	 * Returns if the tree shows a wide selection

flatlaf-theme-editor/src/main/java/com/formdev/flatlaf/themeeditor/FlatThemeFileEditor.java

@@ -52,7 +52,6 @@ import java.util.prefs.Preferences;
 import javax.lang.model.SourceVersion;
 import javax.swing.*;
 import net.miginfocom.swing.*;
-import com.formdev.flatlaf.FlatClientProperties;
 import com.formdev.flatlaf.FlatDarculaLaf;
 import com.formdev.flatlaf.FlatDarkLaf;
 import com.formdev.flatlaf.FlatIntelliJLaf;
@@ -132,8 +131,7 @@ class FlatThemeFileEditor
 			darkLafMenuItem.setSelected( true );
 
 		// highlight selected tab
-		tabbedPane.putClientProperty( FlatClientProperties.STYLE,
+		tabbedPane.setStyle( "[light]selectedBackground: #fff; [dark]selectedBackground: #303234" );
-			"[light]selectedBackground: #fff; [dark]selectedBackground: #303234" );
 
 		// add "+" button to tabbed pane
 		newButton = new JButton( new FlatSVGIcon( "com/formdev/flatlaf/themeeditor/icons/add.svg" ) );