TabbedPane:

- use rounded rectangles for buttons in tab area
- "pressed" background for buttons in tab area
- fill background of buttons in tab area
- use derived colors for hover and pressed
- fixed missing arrow in "more tabs" button at larger scaling

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

@@ -68,13 +68,14 @@ public class FlatTabbedPaneCloseIcon
 		// paint background
 		Color bg = FlatButtonUI.buttonStateColor( c, background, null, null, hoverBackground, pressedBackground );
 		if( bg != null ) {
-			g.setColor( bg );
+			g.setColor( FlatUIUtils.deriveColor( bg, c.getBackground() ) );
 			g.fillRoundRect( (width - size.width) / 2, (height - size.height) / 2,
 				size.width, size.height, arc, arc );
 		}
 
 		// set cross color
-		g.setColor( FlatButtonUI.buttonStateColor( c, foreground, null, null, hoverForeground, pressedForeground ) );
+		Color fg = FlatButtonUI.buttonStateColor( c, foreground, null, null, hoverForeground, pressedForeground );
+		g.setColor( FlatUIUtils.deriveColor( fg, c.getForeground() ) );
 
 		float mx = width / 2;
 		float my = height / 2;

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

@@ -42,12 +42,13 @@ public class FlatArrowButton
 {
 	public static final int DEFAULT_ARROW_WIDTH = 8;
 
-	private final boolean chevron;
+	protected final boolean chevron;
-	private final Color foreground;
+	protected final Color foreground;
-	private final Color disabledForeground;
+	protected final Color disabledForeground;
-	private final Color hoverForeground;
+	protected final Color hoverForeground;
-	private final Color hoverBackground;
+	protected final Color hoverBackground;
-	private final Color pressedBackground;
+	protected final Color pressedForeground;
+	protected final Color pressedBackground;
 
 	private int arrowWidth = DEFAULT_ARROW_WIDTH;
 	private int xOffset = 0;
@@ -64,6 +65,12 @@ public class FlatArrowButton
 
 	public FlatArrowButton( int direction, String type, Color foreground, Color disabledForeground,
 		Color hoverForeground, Color hoverBackground, Color pressedBackground )
+	{
+		this( direction, type, foreground, disabledForeground, hoverForeground, hoverBackground, null, pressedBackground );
+	}
+
+	public FlatArrowButton( int direction, String type, Color foreground, Color disabledForeground,
+		Color hoverForeground, Color hoverBackground, Color pressedForeground, Color pressedBackground )
 	{
 		super( direction, Color.WHITE, Color.WHITE, Color.WHITE, Color.WHITE );
 
@@ -72,6 +79,7 @@ public class FlatArrowButton
 		this.disabledForeground = disabledForeground;
 		this.hoverForeground = hoverForeground;
 		this.hoverBackground = hoverBackground;
+		this.pressedForeground = pressedForeground;
 		this.pressedBackground = pressedBackground;
 
 		setOpaque( false );
@@ -142,6 +150,10 @@ public class FlatArrowButton
 		return background;
 	}
 
+	protected Color deriveForeground( Color foreground ) {
+		return foreground;
+	}
+
 	@Override
 	public Dimension getPreferredSize() {
 		return scale( super.getPreferredSize() );
@@ -157,24 +169,36 @@ public class FlatArrowButton
 		Graphics2D g2 = (Graphics2D)g;
 		FlatUIUtils.setRenderingHints( g2 );
 
-		int width = getWidth();
-		int height = getHeight();
-		boolean enabled = isEnabled();
-
 		// paint hover or pressed background
-		if( enabled ) {
+		if( isEnabled() ) {
 			Color background = (pressedBackground != null && isPressed())
-				? deriveBackground( pressedBackground )
+				? pressedBackground
-				: ((hoverBackground != null && isHover())
+				: (hoverBackground != null && isHover()
-					? deriveBackground( hoverBackground )
+					? hoverBackground
 					: null);
 
 			if( background != null ) {
-				g.setColor( background );
+				g.setColor( deriveBackground( background ) );
-				g.fillRect( 0, 0, width, height );
+				paintBackground( g2 );
 			}
 		}
 
+		// paint arrow
+		g.setColor( deriveForeground( isEnabled()
+			? (pressedForeground != null && isPressed()
+				? pressedForeground
+				: (hoverForeground != null && isHover()
+					? hoverForeground
+					: foreground))
+			: disabledForeground ) );
+		paintArrow( g2 );
+	}
+
+	protected void paintBackground( Graphics2D g ) {
+		g.fillRect( 0, 0, getWidth(), getHeight() );
+	}
+
+	protected void paintArrow( Graphics2D g ) {
 		int direction = getDirection();
 		boolean vert = (direction == NORTH || direction == SOUTH);
 
@@ -193,8 +217,8 @@ public class FlatArrowButton
 			rh++;
 		}
 
-		int x = Math.round( (width - rw) / 2f + scale( (float) xOffset ) );
+		int x = Math.round( (getWidth() - rw) / 2f + scale( (float) xOffset ) );
-		int y = Math.round( (height - rh) / 2f + scale( (float) yOffset ) );
+		int y = Math.round( (getHeight() - rh) / 2f + scale( (float) yOffset ) );
 
 		// move arrow for round borders
 		Container parent = getParent();
@@ -202,20 +226,17 @@ public class FlatArrowButton
 			x -= scale( parent.getComponentOrientation().isLeftToRight() ? 1 : -1 );
 
 		// paint arrow
-		g.setColor( enabled
-			? (isHover() && hoverForeground != null ? hoverForeground : foreground)
-			: disabledForeground );
 		g.translate( x, y );
 /*debug
-		debugPaint( g2, vert, rw, rh );
+		debugPaint( g, vert, rw, rh );
 debug*/
 		Shape arrowShape = createArrowShape( direction, chevron, w, h );
 		if( chevron ) {
-			g2.setStroke( new BasicStroke( scale( 1f ) ) );
+			g.setStroke( new BasicStroke( scale( 1f ) ) );
-			g2.draw( arrowShape );
+			g.draw( arrowShape );
 		} else {
 			// triangle
-			g2.fill( arrowShape );
+			g.fill( arrowShape );
 		}
 		g.translate( -x, -y );
 	}

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

@@ -108,7 +108,6 @@ import com.formdev.flatlaf.util.UIScale;
  *
  * <!-- FlatTabbedPaneUI -->
  *
- * @uiDefault TabbedPane.arrowType						String	chevron (default) or triangle
  * @uiDefault TabbedPane.disabledForeground				Color
  * @uiDefault TabbedPane.selectedBackground				Color	optional
  * @uiDefault TabbedPane.selectedForeground				Color
@@ -133,6 +132,12 @@ import com.formdev.flatlaf.util.UIScale;
  * @uiDefault ScrollPane.smoothScrolling				boolean
  * @uiDefault TabbedPane.closeIcon						Icon
  *
+ * @uiDefault TabbedPane.arrowType						String	chevron (default) or triangle
+ * @uiDefault TabbedPane.buttonInsets					Insets
+ * @uiDefault TabbedPane.buttonArc						int
+ * @uiDefault TabbedPane.buttonHoverBackground			Color
+ * @uiDefault TabbedPane.buttonPressedBackground		Color
+ *
  * @uiDefault TabbedPane.moreTabsButtonToolTipText		String
  *
  * @author Karl Tauber
@@ -154,6 +159,7 @@ public class FlatTabbedPaneUI
 	private static Set<KeyStroke> focusForwardTraversalKeys;
 	private static Set<KeyStroke> focusBackwardTraversalKeys;
 
+	protected Color foreground;
 	protected Color disabledForeground;
 	protected Color selectedBackground;
 	protected Color selectedForeground;
@@ -181,6 +187,12 @@ public class FlatTabbedPaneUI
 	private String tabWidthModeStr;
 	protected Icon closeIcon;
 
+	protected String arrowType;
+	protected Insets buttonInsets;
+	protected int buttonArc;
+	protected Color buttonHoverBackground;
+	protected Color buttonPressedBackground;
+
 	protected String moreTabsButtonToolTipText;
 
 	protected JViewport tabViewport;
@@ -200,6 +212,19 @@ public class FlatTabbedPaneUI
 		return new FlatTabbedPaneUI();
 	}
 
+	@Override
+	public void installUI( JComponent c ) {
+		// initialize this defaults here because they are used in constructor
+		// of FlatTabAreaButton, which is invoked before installDefaults()
+		arrowType = UIManager.getString( "TabbedPane.arrowType" );
+		foreground = UIManager.getColor( "TabbedPane.foreground" );
+		disabledForeground = UIManager.getColor( "TabbedPane.disabledForeground" );
+		buttonHoverBackground = UIManager.getColor( "TabbedPane.buttonHoverBackground" );
+		buttonPressedBackground = UIManager.getColor( "TabbedPane.buttonPressedBackground" );
+
+		super.installUI( c );
+	}
+
 	@Override
 	protected void installDefaults() {
 		if( UIManager.getBoolean( "TabbedPane.tabsOverlapBorder" ) ) {
@@ -224,7 +249,6 @@ public class FlatTabbedPaneUI
 		} else
 			super.installDefaults();
 
-		disabledForeground = UIManager.getColor( "TabbedPane.disabledForeground" );
 		selectedBackground = UIManager.getColor( "TabbedPane.selectedBackground" );
 		selectedForeground = UIManager.getColor( "TabbedPane.selectedForeground" );
 		underlineColor = UIManager.getColor( "TabbedPane.underlineColor" );
@@ -250,6 +274,9 @@ public class FlatTabbedPaneUI
 		tabWidthModeStr = UIManager.getString( "TabbedPane.tabWidthMode" );
 		closeIcon = UIManager.getIcon( "TabbedPane.closeIcon" );
 
+		buttonInsets = UIManager.getInsets( "TabbedPane.buttonInsets" );
+		buttonArc = UIManager.getInt( "TabbedPane.buttonArc" );
+
 		Locale l = tabPane.getLocale();
 		moreTabsButtonToolTipText = UIManager.getString( "TabbedPane.moreTabsButtonToolTipText", l );
 
@@ -279,6 +306,7 @@ public class FlatTabbedPaneUI
 
 		super.uninstallDefaults();
 
+		foreground = null;
 		disabledForeground = null;
 		selectedBackground = null;
 		selectedForeground = null;
@@ -288,9 +316,11 @@ public class FlatTabbedPaneUI
 		focusColor = null;
 		tabSeparatorColor = null;
 		contentAreaColor = null;
-
 		closeIcon = null;
 
+		buttonHoverBackground = null;
+		buttonPressedBackground = null;
+
 		MigLayoutVisualPadding.uninstall( tabPane );
 	}
 
@@ -825,13 +855,14 @@ public class FlatTabbedPaneUI
 	{
 		// paint tab background
 		boolean enabled = tabPane.isEnabled();
-		g.setColor( enabled && tabPane.isEnabledAt( tabIndex ) && getRolloverTab() == tabIndex
+		Color background = enabled && tabPane.isEnabledAt( tabIndex ) && getRolloverTab() == tabIndex
 			? hoverColor
 			: (enabled && isSelected && FlatUIUtils.isPermanentFocusOwner( tabPane )
 				? focusColor
 				: (selectedBackground != null && enabled && isSelected
 					? selectedBackground
-					: tabPane.getBackgroundAt( tabIndex ))) );
+					: tabPane.getBackgroundAt( tabIndex )));
+		g.setColor( FlatUIUtils.deriveColor( background, tabPane.getBackground() ) );
 		g.fillRect( x, y, w, h );
 	}
 
@@ -852,6 +883,10 @@ public class FlatTabbedPaneUI
 		bm.setRollover( rollover && isRolloverTabClose() );
 		bm.setPressed( rollover && isPressedTabClose() );
 
+		// copy colors from tabbed pane because close icon uses derives colors
+		tabCloseButton.setBackground( tabPane.getBackground() );
+		tabCloseButton.setForeground( tabPane.getForeground() );
+
 		// paint tab close icon
 		Rectangle tabCloseRect = getTabCloseBounds( tabIndex, x, y, w, h, calcRect );
 		closeIcon.paintIcon( tabCloseButton, g, tabCloseRect.x, tabCloseRect.y );
@@ -1370,20 +1405,62 @@ public class FlatTabbedPaneUI
 		}
 	}
 
+	//---- class FlatTabAreaButton --------------------------------------------
+
+	protected class FlatTabAreaButton
+		extends FlatArrowButton
+	{
+		public FlatTabAreaButton( int direction ) {
+			super( direction, arrowType,
+				FlatTabbedPaneUI.this.foreground, FlatTabbedPaneUI.this.disabledForeground,
+				null, buttonHoverBackground, null, buttonPressedBackground );
+		}
+
+		@Override
+		protected Color deriveBackground( Color background ) {
+			return FlatUIUtils.deriveColor( background, tabPane.getBackground() );
+		}
+
+		@Override
+		public void paint( Graphics g ) {
+			// fill button background
+			if( tabsOpaque || tabPane.isOpaque() ) {
+				g.setColor( tabPane.getBackground() );
+				g.fillRect( 0, 0, getWidth(), getHeight() );
+			}
+
+			super.paint( g );
+		}
+
+		@Override
+		protected void paintBackground( Graphics2D g ) {
+			// rotate button insets
+			Insets insets = new Insets( 0, 0, 0, 0 );
+			rotateInsets( buttonInsets, insets, tabPane.getTabPlacement() );
+
+			// use UIScale.scale2() here because this gives smaller insets at 150% and 175%
+			int top = UIScale.scale2( insets.top );
+			int left = UIScale.scale2( insets.left );
+			int bottom = UIScale.scale2( insets.bottom );
+			int right = UIScale.scale2( insets.right );
+
+			FlatUIUtils.paintComponentBackground( g, left, top,
+				getWidth() - left - right,
+				getHeight() - top - bottom,
+				0, scale( buttonArc ) );
+		}
+	}
+
 	//---- class FlatMoreTabsButton -------------------------------------------
 
 	protected class FlatMoreTabsButton
-		extends FlatArrowButton
+		extends FlatTabAreaButton
 		implements ActionListener, PopupMenuListener
 	{
 		private boolean popupVisible;
 
 		public FlatMoreTabsButton() {
-			// this method is invoked before installDefaults(), so we can not use color fields here
+			super( SOUTH );
-			super( SOUTH, UIManager.getString( "TabbedPane.arrowType" ),
-				UIManager.getColor( "TabbedPane.foreground" ),
-				UIManager.getColor( "TabbedPane.disabledForeground" ), null,
-				UIManager.getColor( "TabbedPane.hoverColor" ) );
 
 			updateDirection();
 			setToolTipText( moreTabsButtonToolTipText );
@@ -1417,7 +1494,7 @@ public class FlatTabbedPaneUI
 		public void paint( Graphics g ) {
 			// paint arrow button near separator line
 			if( direction == EAST || direction == WEST ) {
-				int xoffset = (getWidth() / 2) - getHeight();
+				int xoffset = Math.max( UIScale.unscale( (getWidth() - getHeight()) / 2 ) - 4, 0 );
 				setXOffset( (direction == EAST) ? xoffset : -xoffset );
 			} else
 				setXOffset( 0 );
@@ -1520,17 +1597,13 @@ public class FlatTabbedPaneUI
 	//---- class FlatScrollableTabButton --------------------------------------
 
 	protected class FlatScrollableTabButton
-		extends FlatArrowButton
+		extends FlatTabAreaButton
 		implements MouseListener
 	{
 		private Timer autoRepeatTimer;
 
 		protected FlatScrollableTabButton( int direction ) {
-			// this method is invoked before installDefaults(), so we can not use color fields here
+			super( direction );
-			super( direction, UIManager.getString( "TabbedPane.arrowType" ),
-				UIManager.getColor( "TabbedPane.foreground" ),
-				UIManager.getColor( "TabbedPane.disabledForeground" ), null,
-				UIManager.getColor( "TabbedPane.hoverColor" ) );
 
 			addMouseListener( this );
 		}

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

@@ -254,15 +254,18 @@ SplitPaneDivider.oneTouchHoverArrowColor=#7A7D81
 
 TabbedPane.underlineColor=#4A88C7
 TabbedPane.disabledUnderlineColor=#7a7a7a
-TabbedPane.hoverColor=#2e3133
+TabbedPane.hoverColor=darken($TabbedPane.background,5%,derived noAutoInverse)
 TabbedPane.focusColor=#3d4b5c
 TabbedPane.contentAreaColor=#646464
 
+TabbedPane.buttonHoverBackground=darken($TabbedPane.background,5%,derived noAutoInverse)
+TabbedPane.buttonPressedBackground=darken($TabbedPane.background,8%,derived noAutoInverse)
+
 TabbedPane.closeBackground=null
 TabbedPane.closeForeground=@disabledText
-TabbedPane.closeHoverBackground=lighten($TabbedPane.hoverColor,10%)
+TabbedPane.closeHoverBackground=lighten($TabbedPane.background,5%,derived)
 TabbedPane.closeHoverForeground=@foreground
-TabbedPane.closePressedBackground=lighten($TabbedPane.hoverColor,15%)
+TabbedPane.closePressedBackground=lighten($TabbedPane.background,10%,derived)
 TabbedPane.closePressedForeground=$TabbedPane.closeHoverForeground
 
 

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

@@ -567,8 +567,11 @@ TabbedPane.tabAreaAlignment=leading
 TabbedPane.tabAlignment=center
 # allowed values: preferred, equal or compact
 TabbedPane.tabWidthMode=preferred
+
 # allowed values: chevron or triangle
 TabbedPane.arrowType=chevron
+TabbedPane.buttonInsets=2,1,2,1
+TabbedPane.buttonArc=$Button.arc
 
 TabbedPane.closeIcon=com.formdev.flatlaf.icons.FlatTabbedPaneCloseIcon
 TabbedPane.closeSize=16,16

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

@@ -266,15 +266,18 @@ SplitPaneDivider.oneTouchHoverArrowColor=#333
 
 TabbedPane.underlineColor=#4083C9
 TabbedPane.disabledUnderlineColor=#ababab
-TabbedPane.hoverColor=#d9d9d9
+TabbedPane.hoverColor=darken($TabbedPane.background,7%,derived)
 TabbedPane.focusColor=#dae4ed
 TabbedPane.contentAreaColor=#bfbfbf
 
+TabbedPane.buttonHoverBackground=darken($TabbedPane.background,7%,derived)
+TabbedPane.buttonPressedBackground=darken($TabbedPane.background,10%,derived)
+
 TabbedPane.closeBackground=null
 TabbedPane.closeForeground=@disabledText
-TabbedPane.closeHoverBackground=darken($TabbedPane.hoverColor,10%)
+TabbedPane.closeHoverBackground=darken($TabbedPane.background,20%,derived)
 TabbedPane.closeHoverForeground=@foreground
-TabbedPane.closePressedBackground=darken($TabbedPane.hoverColor,15%)
+TabbedPane.closePressedBackground=darken($TabbedPane.background,25%,derived)
 TabbedPane.closePressedForeground=$TabbedPane.closeHoverForeground
 
 

flatlaf-testing/dumps/uidefaults/FlatDarkLaf_1.8.0_202.txt

@@ -911,15 +911,19 @@ SplitPaneUI                    com.formdev.flatlaf.ui.FlatSplitPaneUI
 
 TabbedPane.arrowType           chevron
 TabbedPane.background          #3c3f41    javax.swing.plaf.ColorUIResource [UI]
+TabbedPane.buttonArc           6
+TabbedPane.buttonHoverBackground #303234    com.formdev.flatlaf.util.DerivedColor [UI]    darken(5%)
+TabbedPane.buttonInsets        2,1,2,1    javax.swing.plaf.InsetsUIResource [UI]
+TabbedPane.buttonPressedBackground #282a2c    com.formdev.flatlaf.util.DerivedColor [UI]    darken(8%)
 TabbedPane.closeArc            4
 TabbedPane.closeCrossFilledSize 7.5
 TabbedPane.closeCrossLineWidth 1.0
 TabbedPane.closeCrossPlainSize 7.5
 TabbedPane.closeForeground     #888888    javax.swing.plaf.ColorUIResource [UI]
-TabbedPane.closeHoverBackground #464b4e    javax.swing.plaf.ColorUIResource [UI]
+TabbedPane.closeHoverBackground #484c4e    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(5% autoInverse)
 TabbedPane.closeHoverForeground #bbbbbb    javax.swing.plaf.ColorUIResource [UI]
 TabbedPane.closeIcon           [lazy] 16,16    com.formdev.flatlaf.icons.FlatTabbedPaneCloseIcon [UI]
-TabbedPane.closePressedBackground #52585b    javax.swing.plaf.ColorUIResource [UI]
+TabbedPane.closePressedBackground #54595c    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(10% autoInverse)
 TabbedPane.closePressedForeground #bbbbbb    javax.swing.plaf.ColorUIResource [UI]
 TabbedPane.closeSize           16,16    javax.swing.plaf.DimensionUIResource [UI]
 TabbedPane.contentAreaColor    #646464    javax.swing.plaf.ColorUIResource [UI]
@@ -935,7 +939,7 @@ TabbedPane.foreground          #bbbbbb    javax.swing.plaf.ColorUIResource [UI]
 TabbedPane.hasFullBorder       false
 TabbedPane.hiddenTabsNavigation moreTabsButton
 TabbedPane.highlight           #242424    javax.swing.plaf.ColorUIResource [UI]
-TabbedPane.hoverColor          #2e3133    javax.swing.plaf.ColorUIResource [UI]
+TabbedPane.hoverColor          #303234    com.formdev.flatlaf.util.DerivedColor [UI]    darken(5%)
 TabbedPane.labelShift          1
 TabbedPane.light               #313131    javax.swing.plaf.ColorUIResource [UI]
 TabbedPane.selectedLabelShift  -1
@@ -1150,7 +1154,7 @@ ToggleButton.selectedForeground #bbbbbb    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.shadow            #646464    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.tab.disabledUnderlineColor #7a7a7a    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.tab.focusBackground #3d4b5c    javax.swing.plaf.ColorUIResource [UI]
-ToggleButton.tab.hoverBackground #2e3133    javax.swing.plaf.ColorUIResource [UI]
+ToggleButton.tab.hoverBackground #303234    com.formdev.flatlaf.util.DerivedColor [UI]    darken(5%)
 ToggleButton.tab.underlineColor #4a88c7    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.tab.underlineHeight 2
 ToggleButton.textIconGap       4

flatlaf-testing/dumps/uidefaults/FlatLightLaf_1.8.0_202.txt

@@ -916,15 +916,19 @@ SplitPaneUI                    com.formdev.flatlaf.ui.FlatSplitPaneUI
 
 TabbedPane.arrowType           chevron
 TabbedPane.background          #f2f2f2    javax.swing.plaf.ColorUIResource [UI]
+TabbedPane.buttonArc           6
+TabbedPane.buttonHoverBackground #e0e0e0    com.formdev.flatlaf.util.DerivedColor [UI]    darken(7% autoInverse)
+TabbedPane.buttonInsets        2,1,2,1    javax.swing.plaf.InsetsUIResource [UI]
+TabbedPane.buttonPressedBackground #d9d9d9    com.formdev.flatlaf.util.DerivedColor [UI]    darken(10% autoInverse)
 TabbedPane.closeArc            4
 TabbedPane.closeCrossFilledSize 7.5
 TabbedPane.closeCrossLineWidth 1.0
 TabbedPane.closeCrossPlainSize 7.5
 TabbedPane.closeForeground     #8c8c8c    javax.swing.plaf.ColorUIResource [UI]
-TabbedPane.closeHoverBackground #c0c0c0    javax.swing.plaf.ColorUIResource [UI]
+TabbedPane.closeHoverBackground #bfbfbf    com.formdev.flatlaf.util.DerivedColor [UI]    darken(20% autoInverse)
 TabbedPane.closeHoverForeground #000000    javax.swing.plaf.ColorUIResource [UI]
 TabbedPane.closeIcon           [lazy] 16,16    com.formdev.flatlaf.icons.FlatTabbedPaneCloseIcon [UI]
-TabbedPane.closePressedBackground #b3b3b3    javax.swing.plaf.ColorUIResource [UI]
+TabbedPane.closePressedBackground #b2b2b2    com.formdev.flatlaf.util.DerivedColor [UI]    darken(25% autoInverse)
 TabbedPane.closePressedForeground #000000    javax.swing.plaf.ColorUIResource [UI]
 TabbedPane.closeSize           16,16    javax.swing.plaf.DimensionUIResource [UI]
 TabbedPane.contentAreaColor    #bfbfbf    javax.swing.plaf.ColorUIResource [UI]
@@ -940,7 +944,7 @@ TabbedPane.foreground          #000000    javax.swing.plaf.ColorUIResource [UI]
 TabbedPane.hasFullBorder       false
 TabbedPane.hiddenTabsNavigation moreTabsButton
 TabbedPane.highlight           #ffffff    javax.swing.plaf.ColorUIResource [UI]
-TabbedPane.hoverColor          #d9d9d9    javax.swing.plaf.ColorUIResource [UI]
+TabbedPane.hoverColor          #e0e0e0    com.formdev.flatlaf.util.DerivedColor [UI]    darken(7% autoInverse)
 TabbedPane.labelShift          1
 TabbedPane.light               #e3e3e3    javax.swing.plaf.ColorUIResource [UI]
 TabbedPane.selectedLabelShift  -1
@@ -1155,7 +1159,7 @@ ToggleButton.selectedForeground #000000    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.shadow            #c4c4c4    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.tab.disabledUnderlineColor #ababab    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.tab.focusBackground #dae4ed    javax.swing.plaf.ColorUIResource [UI]
-ToggleButton.tab.hoverBackground #d9d9d9    javax.swing.plaf.ColorUIResource [UI]
+ToggleButton.tab.hoverBackground #e0e0e0    com.formdev.flatlaf.util.DerivedColor [UI]    darken(7% autoInverse)
 ToggleButton.tab.underlineColor #4083c9    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.tab.underlineHeight 2
 ToggleButton.textIconGap       4

flatlaf-testing/dumps/uidefaults/FlatTestLaf_1.8.0_202.txt

@@ -904,6 +904,10 @@ SplitPaneUI                    com.formdev.flatlaf.ui.FlatSplitPaneUI
 
 TabbedPane.arrowType           chevron
 TabbedPane.background          #ccffcc    javax.swing.plaf.ColorUIResource [UI]
+TabbedPane.buttonArc           6
+TabbedPane.buttonHoverBackground #ffff00    javax.swing.plaf.ColorUIResource [UI]
+TabbedPane.buttonInsets        2,1,2,1    javax.swing.plaf.InsetsUIResource [UI]
+TabbedPane.buttonPressedBackground #ffc800    javax.swing.plaf.ColorUIResource [UI]
 TabbedPane.closeArc            999
 TabbedPane.closeCrossFilledSize 6.5
 TabbedPane.closeCrossLineWidth 2.0

flatlaf-testing/src/main/resources/com/formdev/flatlaf/testing/FlatTestLaf.properties

@@ -284,6 +284,9 @@ TabbedPane.focusColor=#ddd
 TabbedPane.tabSeparatorColor=#00f
 TabbedPane.contentAreaColor=#f00
 
+TabbedPane.buttonHoverBackground=#ff0
+TabbedPane.buttonPressedBackground=#FFC800
+
 TabbedPane.closeSize=16,16
 TabbedPane.closeArc=999
 TabbedPane.closeCrossPlainSize={float}12

flatlaf-theme-editor/src/main/resources/com/formdev/flatlaf/themeeditor/FlatLafUIKeys.txt

@@ -640,6 +640,10 @@ SplitPaneUI
 TabbedPane.ancestorInputMap
 TabbedPane.arrowType
 TabbedPane.background
+TabbedPane.buttonArc
+TabbedPane.buttonHoverBackground
+TabbedPane.buttonInsets
+TabbedPane.buttonPressedBackground
 TabbedPane.closeArc
 TabbedPane.closeCrossFilledSize
 TabbedPane.closeCrossLineWidth