Merge PR #375: Accent colors

# Conflicts:
#	flatlaf-core/src/main/java/com/formdev/flatlaf/FlatLaf.java
#	flatlaf-core/src/main/java/com/formdev/flatlaf/UIDefaultsLoader.java

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

@@ -88,6 +88,8 @@ public abstract class FlatLaf
 	private static final String DESKTOPFONTHINTS = "awt.font.desktophints";
 
 	private static List<Object> customDefaultsSources;
+	private static Map<String, String> globalExtraDefaults;
+	private Map<String, String> extraDefaults;
 
 	private String desktopPropertyName;
 	private String desktopPropertyName2;
@@ -466,7 +468,15 @@ public abstract class FlatLaf
 	}
 
 	protected Properties getAdditionalDefaults() {
+		if( globalExtraDefaults == null && extraDefaults == null )
 			return null;
+
+		Properties properties = new Properties();
+		if( globalExtraDefaults != null )
+			properties.putAll( globalExtraDefaults );
+		if( extraDefaults != null )
+			properties.putAll( extraDefaults );
+		return properties;
 	}
 
 	private void initResourceBundle( UIDefaults defaults, String bundleName ) {
@@ -779,6 +789,71 @@ public abstract class FlatLaf
 		customDefaultsSources.remove( folder );
 	}
 
+	/**
+	 * Gets global extra UI defaults; or {@code null}.
+	 *
+	 * @since 2
+	 */
+	public static Map<String, String> getGlobalExtraDefaults() {
+		return globalExtraDefaults;
+	}
+
+	/**
+	 * Sets global extra UI defaults, which are only used when setting up the application look and feel.
+	 * E.g. using {@link UIManager#setLookAndFeel(LookAndFeel)} or {@link #setup(LookAndFeel)}.
+	 * <p>
+	 * The global extra defaults are useful for smaller additional defaults that may change.
+	 * E.g. accent color. Otherwise FlatLaf properties files should be used.
+	 * See {@link #registerCustomDefaultsSource(String)}.
+	 * <p>
+	 * The keys and values are strings in same format as in FlatLaf properties files.
+	 * <p>
+	 * Sample that setups "FlatLaf Light" theme with red accent color:
+	 * <pre>{@code
+	 * FlatLaf.setGlobalExtraDefaults( Collections.singletonMap( "@accentColor", "#f00" ) );
+	 * FlatLightLaf.setup();
+	 * }</pre>
+	 *
+	 * @see #setExtraDefaults(Map)
+	 * @since 2
+	 */
+	public static void setGlobalExtraDefaults( Map<String, String> globalExtraDefaults ) {
+		FlatLaf.globalExtraDefaults = globalExtraDefaults;
+	}
+
+	/**
+	 * Gets extra UI defaults; or {@code null}.
+	 *
+	 * @since 2
+	 */
+	public Map<String, String> getExtraDefaults() {
+		return extraDefaults;
+	}
+
+	/**
+	 * Sets extra UI defaults, which are only used when setting up the application look and feel.
+	 * E.g. using {@link UIManager#setLookAndFeel(LookAndFeel)} or {@link #setup(LookAndFeel)}.
+	 * <p>
+	 * The extra defaults are useful for smaller additional defaults that may change.
+	 * E.g. accent color. Otherwise FlatLaf properties files should be used.
+	 * See {@link #registerCustomDefaultsSource(String)}.
+	 * <p>
+	 * The keys and values are strings in same format as in FlatLaf properties files.
+	 * <p>
+	 * Sample that setups "FlatLaf Light" theme with red accent color:
+	 * <pre>{@code
+	 * FlatLaf laf = new FlatLightLaf();
+	 * laf.setExtraDefaults( Collections.singletonMap( "@accentColor", "#f00" ) );
+	 * FlatLaf.setup( laf );
+	 * }</pre>
+	 *
+	 * @see #setGlobalExtraDefaults(Map)
+	 * @since 2
+	 */
+	public void setExtraDefaults( Map<String, String> extraDefaults ) {
+		this.extraDefaults = extraDefaults;
+	}
+
 	/**
 	 * Parses a UI defaults value string and converts it into a binary object.
 	 * <p>

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

@@ -333,6 +333,24 @@ class UIDefaultsLoader
 			return null;
 		}
 
+		// check for function "if"
+		//     Syntax: if(condition,trueValue,falseValue)
+		//       - condition: evaluates to true if:
+		//           - is not "null"
+		//           - is not "false"
+		//           - is not an integer with zero value
+		//       - trueValue: used if condition is true
+		//       - falseValue: used if condition is false
+		if( value.startsWith( "if(" ) && value.endsWith( ")" ) ) {
+			List<String> params = splitFunctionParams( value.substring( 3, value.length() - 1 ), ',' );
+			if( params.size() != 3 )
+				throwMissingParametersException( value );
+
+			boolean ifCondition = parseCondition( params.get( 0 ), resolver, addonClassLoaders );
+			String ifValue = params.get( ifCondition ? 1 : 2 );
+			return parseValue( key, resolver.apply( ifValue ), javaValueType, resultValueType, resolver, addonClassLoaders );
+		}
+
 		ValueType valueType = ValueType.UNKNOWN;
 
 		if( javaValueType != null ) {
@@ -479,6 +497,20 @@ class UIDefaultsLoader
 		}
 	}
 
+	private static boolean parseCondition( String condition,
+		Function<String, String> resolver, List<ClassLoader> addonClassLoaders )
+	{
+		try {
+			Object conditionValue = parseValue( "", resolver.apply( condition ), null, null, resolver, addonClassLoaders );
+			return (conditionValue != null &&
+				!conditionValue.equals( false ) &&
+				!conditionValue.equals( 0 ) );
+		} catch( IllegalArgumentException ex ) {
+			// ignore errors (e.g. variable or property not found) and evaluate to false
+			return false;
+		}
+	}
+
 	private static Object parseBorder( String value, Function<String, String> resolver, List<ClassLoader> addonClassLoaders ) {
 		if( value.indexOf( ',' ) >= 0 ) {
 			// top,left,bottom,right[,lineColor[,lineThickness]]
@@ -643,7 +675,7 @@ class UIDefaultsLoader
 		String function = value.substring( 0, paramsStart ).trim();
 		List<String> params = splitFunctionParams( value.substring( paramsStart + 1, value.length() - 1 ), ',' );
 		if( params.isEmpty() )
-			throw new IllegalArgumentException( "missing parameters in function '" + value + "'" );
+			throwMissingParametersException( value );
 
 		if( parseColorDepth > 100 )
 			throw new IllegalArgumentException( "endless recursion in color function '" + value + "'" );
@@ -651,6 +683,7 @@ class UIDefaultsLoader
 		parseColorDepth++;
 		try {
 			switch( function ) {
+				case "if":			return parseColorIf( value, params, resolver, reportError );
 				case "rgb":			return parseColorRgbOrRgba( false, params, resolver, reportError );
 				case "rgba":		return parseColorRgbOrRgba( true, params, resolver, reportError );
 				case "hsl":			return parseColorHslOrHsla( false, params );
@@ -670,6 +703,7 @@ class UIDefaultsLoader
 				case "mix":				return parseColorMix( null, params, resolver, reportError );
 				case "tint":			return parseColorMix( "#fff", params, resolver, reportError );
 				case "shade":			return parseColorMix( "#000", params, resolver, reportError );
+				case "contrast":		return parseColorContrast( params, resolver, reportError );
 			}
 		} finally {
 			parseColorDepth--;
@@ -678,6 +712,21 @@ class UIDefaultsLoader
 		throw new IllegalArgumentException( "unknown color function '" + value + "'" );
 	}
 
+	/**
+	 * Syntax: if(condition,trueValue,falseValue)
+	 * <p>
+	 * This "if" function is only used if the "if" is passed as parameter to another
+	 * color function. Otherwise the general "if" function is used.
+	 */
+	private static Object parseColorIf( String value, List<String> params, Function<String, String> resolver, boolean reportError ) {
+		if( params.size() != 3 )
+			throwMissingParametersException( value );
+
+		boolean ifCondition = parseCondition( params.get( 0 ), resolver, Collections.emptyList() );
+		String ifValue = params.get( ifCondition ? 1 : 2 );
+		return parseColorOrFunction( resolver.apply( ifValue ), resolver, reportError );
+	}
+
 	/**
 	 * Syntax: rgb(red,green,blue) or rgba(red,green,blue,alpha)
 	 *   - red:   an integer 0-255 or a percentage 0-100%
@@ -863,14 +912,10 @@ class UIDefaultsLoader
 		if( color1Str == null )
 			color1Str = params.get( i++ );
 		String color2Str = params.get( i++ );
-		int weight = 50;
+		int weight = (params.size() > i) ? parsePercentage( params.get( i ) ) : 50;
-
-		if( params.size() > i )
-			weight = parsePercentage( params.get( i++ ) );
 
 		// parse second color
-		String resolvedColor2Str = resolver.apply( color2Str );
+		ColorUIResource color2 = (ColorUIResource) parseColorOrFunction( resolver.apply( color2Str ), resolver, reportError );
-		ColorUIResource color2 = (ColorUIResource) parseColorOrFunction( resolvedColor2Str, resolver, reportError );
 		if( color2 == null )
 			return null;
 
@@ -881,6 +926,34 @@ class UIDefaultsLoader
 		return parseFunctionBaseColor( color1Str, function, false, resolver, reportError );
 	}
 
+	/**
+	 * Syntax: contrast(color,dark,light[,threshold])
+	 *   - color: a color to compare against
+	 *   - dark: a designated dark color (e.g. #000) or a color function
+	 *   - light: a designated light color (e.g. #fff) or a color function
+	 *   - threshold: the threshold (in range 0-100%) to specify where the transition
+	 *                from "dark" to "light" is (default is 43%)
+	 */
+	private static Object parseColorContrast( List<String> params, Function<String, String> resolver, boolean reportError ) {
+		String colorStr = params.get( 0 );
+		String darkStr = params.get( 1 );
+		String lightStr = params.get( 2 );
+		int threshold = (params.size() > 3) ? parsePercentage( params.get( 3 ) ) : 43;
+
+		// parse color to compare against
+		ColorUIResource color = (ColorUIResource) parseColorOrFunction( resolver.apply( colorStr ), resolver, reportError );
+		if( color == null )
+			return null;
+
+		// check luma and determine whether to use dark or light color
+		String darkOrLightColor = (ColorFunctions.luma( color ) * 100 < threshold)
+			? lightStr
+			: darkStr;
+
+		// parse dark or light color
+		return parseColorOrFunction( resolver.apply( darkOrLightColor ), resolver, reportError );
+	}
+
 	private static Object parseFunctionBaseColor( String colorStr, ColorFunction function,
 		boolean derived, Function<String, String> resolver, boolean reportError )
 	{
@@ -1071,4 +1144,8 @@ class UIDefaultsLoader
 			LoggingFacade.INSTANCE.logSevere( "FlatLaf: '" + uiKey + "' not found in UI defaults.", null );
 		return value;
 	}
+
+	private static void throwMissingParametersException( String value ) {
+		throw new IllegalArgumentException( "missing parameters in function '" + value + "'" );
+	}
 }

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

@@ -49,6 +49,9 @@ public class ColorFunctions
 
 	/**
 	 * Returns a color that is a mixture of two colors.
+	 * <p>
+	 * This can be used to animate a color change from {@code color1} to {@code color2}
+	 * by invoking this method multiple times with growing {@code weight} (from 0 to 1).
 	 *
 	 * @param color1 first color
 	 * @param color2 second color
@@ -79,6 +82,62 @@ public class ColorFunctions
 			Math.round( a2 + ((a1 - a2) * weight) ) );
 	}
 
+	/**
+	 * Mix color with white, which makes the color brighter.
+	 * This is the same as {@link #mix}{@code (Color.white, color, weight)}.
+	 *
+	 * @param color second color
+	 * @param weight the weight (in range 0-1) to mix the two colors.
+	 *               Larger weight uses more of first color, smaller weight more of second color.
+	 * @return mixture of colors
+	 * @since 2
+	 */
+	public static Color tint( Color color, float weight ) {
+		return mix( Color.white, color, weight );
+	}
+
+	/**
+	 * Mix color with black, which makes the color darker.
+	 * This is the same as {@link #mix}{@code (Color.black, color, weight)}.
+	 *
+	 * @param color second color
+	 * @param weight the weight (in range 0-1) to mix the two colors.
+	 *               Larger weight uses more of first color, smaller weight more of second color.
+	 * @return mixture of colors
+	 * @since 2
+	 */
+	public static Color shade( Color color, float weight ) {
+		return mix( Color.black, color, weight );
+	}
+
+	/**
+	 * Calculates the luma (perceptual brightness) of the given color.
+	 * <p>
+	 * Uses SMPTE C / Rec. 709 coefficients, as recommended in
+	 * <a href="https://www.w3.org/TR/2008/REC-WCAG20-20081211/#relativeluminancedef">WCAG 2.0</a>.
+	 *
+	 * @param color a color
+	 * @return the luma (in range 0-1)
+	 *
+	 * @see <a href="https://en.wikipedia.org/wiki/Luma_(video)">https://en.wikipedia.org/wiki/Luma_(video)</a>
+	 * @since 2
+	 */
+	public static float luma( Color color ) {
+		// see https://en.wikipedia.org/wiki/Luma_(video)
+		// see https://www.w3.org/TR/2008/REC-WCAG20-20081211/#relativeluminancedef
+		// see https://github.com/less/less.js/blob/master/packages/less/src/less/tree/color.js
+		float r = gammaCorrection( color.getRed() / 255f );
+		float g = gammaCorrection( color.getGreen() / 255f );
+		float b = gammaCorrection( color.getBlue() / 255f );
+		return (0.2126f * r) + (0.7152f * g) + (0.0722f * b);
+	}
+
+	private static float gammaCorrection( float value ) {
+		return (value <= 0.03928f)
+			? value / 12.92f
+			: (float) Math.pow( (value + 0.055) / 1.055, 2.4 );
+	}
+
 	//---- interface ColorFunction --------------------------------------------
 
 	public interface ColorFunction {

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

@@ -31,6 +31,12 @@
 # which is licensed under the Apache 2.0 license. Copyright 2000-2019 JetBrains s.r.o.
 # See: https://github.com/JetBrains/intellij-community/
 
+#---- variables ----
+
+# accent colors (blueish)
+@accentFocusColor               = if(@accentColor, darken(@accentColor,20%), shade(spin(@accentBaseColor,-8),20%))
+
+
 #---- Button ----
 
 Button.innerFocusWidth = 0

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

@@ -34,9 +34,9 @@
 
 @background = #3c3f41
 @foreground = #bbb
-@selectionBackground = #4B6EAF
+@selectionBackground = @accentSelectionBackground
-@selectionForeground = @foreground
+@selectionForeground = contrast(@selectionBackground,@background,@foreground,25%)
-@selectionInactiveBackground = #0D293E
+@selectionInactiveBackground = spin(saturate(shade(@selectionBackground,70%),20%),-15)
 @selectionInactiveForeground = @foreground
 @disabledText = #888
 @textComponentBackground = #45494A
@@ -48,6 +48,20 @@
 @cellFocusColor = #000
 @icon = #adadad
 
+# accent colors (blueish)
+#   set @accentColor to use single accent color or
+#   modify @accentBaseColor to use variations of accent base color
+@accentColor = null
+@accentBaseColor = #4B6EAF
+@accentBase2Color = lighten(saturate(spin(@accentBaseColor,-8),13%),5%)
+#   accent color variations
+@accentFocusColor               = if(@accentColor, @accentColor, shade(spin(@accentBaseColor,-8),20%))
+@accentLinkColor                = if(@accentColor, @accentColor, lighten(saturate(spin(@accentBaseColor,-5),50%),16%))
+@accentSelectionBackground      = if(@accentColor, @accentColor, @accentBaseColor)
+@accentSliderColor              = if(@accentColor, @accentColor, @accentBase2Color)
+@accentUnderlineColor           = if(@accentColor, @accentColor, @accentBase2Color)
+@accentButtonDefaultBackground  = if(@accentColor, @accentColor, darken(spin(@accentBaseColor,-8),13%))
+
 # for buttons within components (e.g. combobox or spinner)
 @buttonArrowColor = #9A9DA1
 @buttonDisabledArrowColor = darken(@buttonArrowColor,25%)
@@ -79,21 +93,21 @@ Button.selectedBackground = lighten($Button.background,10%,derived)
 Button.selectedForeground = @foreground
 Button.disabledSelectedBackground = lighten($Button.background,3%,derived)
 
-Button.borderColor = #5e6060
+Button.borderColor = tint($Button.background,10%)
 Button.disabledBorderColor = $Button.borderColor
 Button.focusedBorderColor = $Component.focusedBorderColor
 Button.hoverBorderColor = $Button.focusedBorderColor
 
 Button.innerFocusWidth = 1
 
-Button.default.background = #365880
+Button.default.background = @accentButtonDefaultBackground
-Button.default.foreground = #bbb
+Button.default.foreground = contrast($Button.default.background,@background,@foreground,25%)
 Button.default.hoverBackground = lighten($Button.default.background,3%,derived)
 Button.default.pressedBackground = lighten($Button.default.background,6%,derived)
-Button.default.borderColor = #4c708c
+Button.default.borderColor = tint($Button.default.background,15%)
-Button.default.hoverBorderColor = #537699
+Button.default.hoverBorderColor = tint($Button.default.background,18%)
-Button.default.focusedBorderColor = #537699
+Button.default.focusedBorderColor = $Button.default.hoverBorderColor
-Button.default.focusColor = #43688c
+Button.default.focusColor = lighten($Component.focusColor,3%)
 Button.default.boldText = true
 
 Button.toolbar.hoverBackground = lighten($Button.background,1%,derived)
@@ -116,7 +130,7 @@ CheckBox.icon.disabledBackground = @background
 CheckBox.icon.disabledCheckmarkColor = #606060
 
 # focused
-CheckBox.icon.focusedBorderColor = #466D94
+CheckBox.icon.focusedBorderColor = $Component.focusedBorderColor
 CheckBox.icon.focusedBackground = fade($CheckBox.icon.focusedBorderColor,30%)
 
 # hover
@@ -146,10 +160,11 @@ ComboBox.buttonEditableBackground = darken($ComboBox.background,2%)
 #---- Component ----
 
 Component.borderColor = #646464
-Component.disabledBorderColor = #646464
+Component.disabledBorderColor = $Component.borderColor
-Component.focusedBorderColor = #466d94
+Component.focusedBorderColor = lighten($Component.focusColor,5%)
-Component.focusColor = #3d6185
+Component.focusColor = @accentFocusColor
-Component.linkColor = #589df6
+Component.linkColor = @accentLinkColor
+Component.accentColor = if(@accentColor, @accentColor, @accentBaseColor)
 Component.grayFilter = -20,-70,100
 
 Component.error.borderColor = desaturate($Component.error.focusedBorderColor,25%)
@@ -226,9 +241,9 @@ PopupMenu.borderColor = #5e5e5e
 #---- ProgressBar ----
 
 ProgressBar.background = #555
-ProgressBar.foreground = #4A88C7
+ProgressBar.foreground = @accentSliderColor
-ProgressBar.selectionForeground = @foreground
 ProgressBar.selectionBackground = @foreground
+ProgressBar.selectionForeground = contrast($ProgressBar.foreground,@background,@foreground,25%)
 
 
 #---- RootPane ----
@@ -255,7 +270,7 @@ Separator.foreground = #515151
 
 #---- Slider ----
 
-Slider.trackValueColor = #4A88C7
+Slider.trackValueColor = @accentSliderColor
 Slider.trackColor = #646464
 Slider.thumbColor = $Slider.trackValueColor
 Slider.tickColor = #888
@@ -273,10 +288,10 @@ SplitPaneDivider.draggingColor = #646464
 
 #---- TabbedPane ----
 
-TabbedPane.underlineColor = #4A88C7
+TabbedPane.underlineColor = @accentUnderlineColor
 TabbedPane.disabledUnderlineColor = #7a7a7a
 TabbedPane.hoverColor = darken($TabbedPane.background,5%,derived noAutoInverse)
-TabbedPane.focusColor = #3d4b5c
+TabbedPane.focusColor = mix(@selectionBackground,$TabbedPane.background,25%)
 TabbedPane.contentAreaColor = #646464
 
 TabbedPane.buttonHoverBackground = darken($TabbedPane.background,5%,derived noAutoInverse)

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

@@ -31,17 +31,22 @@
 # which is licensed under the Apache 2.0 license. Copyright 2000-2019 JetBrains s.r.o.
 # See: https://github.com/JetBrains/intellij-community/
 
+#---- variables ----
+
+# accent colors (blueish)
+@accentFocusColor               = if(@accentColor, lighten(@accentColor,20%), lighten(@accentBaseColor,31%))
+@accentButtonDefaultBackground  = if(@accentColor, @accentColor, tint(@accentBaseColor,15%))
+
 #---- Button ----
 
 Button.focusedBackground = null
 
-Button.default.background = #4D8AC9
+Button.default.background = @accentButtonDefaultBackground
-Button.default.foreground = #fff
+Button.default.foreground = contrast($Button.default.background,lighten(@foreground,50%),#fff,50%)
 Button.default.focusedBackground = null
-Button.default.borderColor = #3D75B2
+Button.default.borderColor = shade($Button.default.background,15%)
-Button.default.hoverBorderColor = #A9C9F5
+Button.default.hoverBorderColor = tint($Button.default.background,50%)
-Button.default.focusedBorderColor = #A9C9F5
+Button.default.focusedBorderColor = $Button.default.hoverBorderColor
-Button.default.focusColor = #97c3f3
 Button.default.boldText = true
 Button.default.borderWidth = 1
 

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

@@ -34,8 +34,8 @@
 
 @background = #f2f2f2
 @foreground = #000
-@selectionBackground = #2675BF
+@selectionBackground = @accentSelectionBackground
-@selectionForeground = #fff
+@selectionForeground = contrast(@selectionBackground,@foreground,#fff)
 @selectionInactiveBackground = #d4d4d4
 @selectionInactiveForeground = @foreground
 @disabledText = #8C8C8C
@@ -48,6 +48,21 @@
 @cellFocusColor = #000
 @icon = #afafaf
 
+# accent colors (blueish)
+#   set @accentColor to use single accent color or
+#   modify @accentBaseColor to use variations of accent base color
+@accentColor = null
+@accentBaseColor = #2675BF
+@accentBase2Color = lighten(saturate(@accentBaseColor,10%),6%)
+#   accent color variations
+@accentCheckmarkColor           = if(@accentColor, @accentColor, tint(@accentBase2Color,20%))
+@accentFocusColor               = if(@accentColor, @accentColor, lighten(@accentBaseColor,31%))
+@accentLinkColor                = if(@accentColor, @accentColor, darken(@accentBaseColor,3%))
+@accentSelectionBackground      = if(@accentColor, @accentColor, @accentBaseColor)
+@accentSliderColor              = if(@accentColor, @accentColor, @accentBase2Color)
+@accentUnderlineColor           = if(@accentColor, @accentColor, tint(@accentBaseColor,10%))
+@accentButtonDefaultBorderColor = if(@accentColor, @accentColor, tint(@accentBase2Color,20%))
+
 # for buttons within components (e.g. combobox or spinner)
 @buttonArrowColor = #666
 @buttonDisabledArrowColor = lighten(@buttonArrowColor,25%)
@@ -73,7 +88,7 @@ controlDkShadow = darken($controlShadow,15%)
 #---- Button ----
 
 Button.background = #fff
-Button.focusedBackground = #e3f1fa
+Button.focusedBackground = changeLightness(@selectionBackground,95%)
 Button.hoverBackground = darken($Button.background,3%,derived)
 Button.pressedBackground = darken($Button.background,10%,derived)
 Button.selectedBackground = darken($Button.background,20%,derived)
@@ -92,7 +107,7 @@ Button.default.foreground = @foreground
 Button.default.focusedBackground = $Button.focusedBackground
 Button.default.hoverBackground = darken($Button.default.background,3%,derived)
 Button.default.pressedBackground = darken($Button.default.background,10%,derived)
-Button.default.borderColor = #4F9EE3
+Button.default.borderColor = @accentButtonDefaultBorderColor
 Button.default.hoverBorderColor = $Button.hoverBorderColor
 Button.default.focusedBorderColor = $Button.focusedBorderColor
 Button.default.focusColor = $Component.focusColor
@@ -110,7 +125,7 @@ CheckBox.icon.borderColor = #b0b0b0
 CheckBox.icon.background = #fff
 CheckBox.icon.selectedBorderColor = $CheckBox.icon.borderColor
 CheckBox.icon.selectedBackground = $CheckBox.icon.background
-CheckBox.icon.checkmarkColor = #4F9EE3
+CheckBox.icon.checkmarkColor = @accentCheckmarkColor
 
 # disabled
 CheckBox.icon.disabledBorderColor = #BDBDBD
@@ -118,7 +133,7 @@ CheckBox.icon.disabledBackground = @background
 CheckBox.icon.disabledCheckmarkColor = #ABABAB
 
 # focused
-CheckBox.icon.focusedBorderColor = #7B9FC7
+CheckBox.icon.focusedBorderColor = shade($Component.focusedBorderColor,10%)
 CheckBox.icon.focusedBackground = $Button.focusedBackground
 
 # hover
@@ -131,11 +146,11 @@ CheckBox.icon.pressedBackground = $Button.pressedBackground
 
 # used if CheckBox.icon.style = filled
 # enabled
-CheckBox.icon[filled].selectedBorderColor = #4B97D9
+CheckBox.icon[filled].selectedBorderColor = shade($CheckBox.icon[filled].selectedBackground,5%)
-CheckBox.icon[filled].selectedBackground = #4F9EE3
+CheckBox.icon[filled].selectedBackground = @accentCheckmarkColor
 CheckBox.icon[filled].checkmarkColor = #fff
 # focused
-CheckBox.icon[filled].selectedFocusedBorderColor = #ACCFF7
+CheckBox.icon[filled].selectedFocusedBorderColor = tint($CheckBox.icon[filled].selectedBackground,50%)
 CheckBox.icon[filled].selectedFocusedBackground = $CheckBox.icon[filled].selectedBackground
 CheckBox.icon[filled].selectedFocusedCheckmarkColor = $CheckBox.icon.focusedBackground
 # hover
@@ -152,10 +167,11 @@ ComboBox.buttonEditableBackground = darken($ComboBox.background,2%)
 #---- Component ----
 
 Component.borderColor = #c4c4c4
-Component.disabledBorderColor = #cfcfcf
+Component.disabledBorderColor = lighten($Component.borderColor,4%)
-Component.focusedBorderColor = #87afda
+Component.focusedBorderColor = shade($Component.focusColor,10%)
-Component.focusColor = #97c3f3
+Component.focusColor = @accentFocusColor
-Component.linkColor = #2470B3
+Component.linkColor = @accentLinkColor
+Component.accentColor = if(@accentColor, @accentColor, @accentBaseColor)
 Component.grayFilter = 25,-25,100
 
 Component.error.borderColor = lighten(desaturate($Component.error.focusedBorderColor,20%),25%)
@@ -177,7 +193,7 @@ DesktopIcon.background = darken($Desktop.background,10%,derived)
 
 #---- HelpButton ----
 
-HelpButton.questionMarkColor = #4F9EE3
+HelpButton.questionMarkColor = @accentCheckmarkColor
 
 
 #---- InternalFrame ----
@@ -214,7 +230,7 @@ MenuBar.borderColor = #cdcdcd
 
 #---- MenuItemCheckBox ----
 
-MenuItemCheckBox.icon.checkmarkColor = #4F9EE3
+MenuItemCheckBox.icon.checkmarkColor = @accentCheckmarkColor
 MenuItemCheckBox.icon.disabledCheckmarkColor = #ABABAB
 
 
@@ -237,9 +253,9 @@ PopupMenu.borderColor = #adadad
 #---- ProgressBar ----
 
 ProgressBar.background = #D1D1D1
-ProgressBar.foreground = #1E82E6
+ProgressBar.foreground = @accentSliderColor
-ProgressBar.selectionForeground = @textComponentBackground
 ProgressBar.selectionBackground = @foreground
+ProgressBar.selectionForeground = contrast($ProgressBar.foreground,@foreground,@textComponentBackground)
 
 
 #---- RootPane ----
@@ -266,7 +282,7 @@ Separator.foreground = #d1d1d1
 
 #---- Slider ----
 
-Slider.trackValueColor = #1E82E6
+Slider.trackValueColor = @accentSliderColor
 Slider.trackColor = #c4c4c4
 Slider.thumbColor = $Slider.trackValueColor
 Slider.tickColor = #888
@@ -284,10 +300,10 @@ SplitPaneDivider.draggingColor = #c4c4c4
 
 #---- TabbedPane ----
 
-TabbedPane.underlineColor = #4083C9
+TabbedPane.underlineColor = @accentUnderlineColor
 TabbedPane.disabledUnderlineColor = #ababab
 TabbedPane.hoverColor = darken($TabbedPane.background,7%,derived)
-TabbedPane.focusColor = #dae4ed
+TabbedPane.focusColor = mix(@selectionBackground,$TabbedPane.background,10%)
 TabbedPane.contentAreaColor = #bfbfbf
 
 TabbedPane.buttonHoverBackground = darken($TabbedPane.background,7%,derived)

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

@@ -0,0 +1,44 @@
+/*
+ * 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.util;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import java.awt.Color;
+import org.junit.jupiter.api.Test;
+
+/**
+ * @author Karl Tauber
+ */
+public class TestColorFunctions
+{
+	@Test
+	void luma() {
+		assertEquals( 0, ColorFunctions.luma( Color.black ) );
+		assertEquals( 1, ColorFunctions.luma( Color.white ) );
+
+		assertEquals( 0.2126f, ColorFunctions.luma( Color.red ) );
+		assertEquals( 0.7152f, ColorFunctions.luma( Color.green ) );
+		assertEquals( 0.0722f, ColorFunctions.luma( Color.blue ) );
+
+		assertEquals( 0.9278f, ColorFunctions.luma( Color.yellow ) );
+		assertEquals( 0.7874f, ColorFunctions.luma( Color.cyan ) );
+
+		assertEquals( 0.051269464f, ColorFunctions.luma( Color.darkGray ) );
+		assertEquals( 0.21586052f, ColorFunctions.luma( Color.gray ) );
+		assertEquals( 0.52711517f, ColorFunctions.luma( Color.lightGray ) );
+	}
+}

flatlaf-demo/src/main/java/com/formdev/flatlaf/demo/DemoFrame.java

@@ -24,11 +24,16 @@ import java.net.URISyntaxException;
 import java.time.Year;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.prefs.Preferences;
 import javax.swing.*;
 import javax.swing.text.DefaultEditorKit;
 import javax.swing.text.StyleContext;
+import com.formdev.flatlaf.FlatDarculaLaf;
+import com.formdev.flatlaf.FlatDarkLaf;
+import com.formdev.flatlaf.FlatIntelliJLaf;
 import com.formdev.flatlaf.FlatLaf;
+import com.formdev.flatlaf.FlatLightLaf;
 import com.formdev.flatlaf.demo.HintManager.Hint;
 import com.formdev.flatlaf.demo.extras.*;
 import com.formdev.flatlaf.demo.intellijthemes.*;
@@ -37,9 +42,12 @@ import com.formdev.flatlaf.extras.FlatSVGIcon;
 import com.formdev.flatlaf.extras.FlatUIDefaultsInspector;
 import com.formdev.flatlaf.extras.components.FlatButton;
 import com.formdev.flatlaf.extras.components.FlatButton.ButtonType;
+import com.formdev.flatlaf.icons.FlatAbstractIcon;
 import com.formdev.flatlaf.extras.FlatSVGUtils;
 import com.formdev.flatlaf.ui.FlatUIUtils;
 import com.formdev.flatlaf.ui.JBRCustomDecorations;
+import com.formdev.flatlaf.util.ColorFunctions;
+import com.formdev.flatlaf.util.LoggingFacade;
 import com.formdev.flatlaf.util.SystemInfo;
 import com.formdev.flatlaf.util.UIScale;
 import net.miginfocom.layout.ConstraintParser;
@@ -65,6 +73,7 @@ class DemoFrame
 
 		initComponents();
 		updateFontMenuItems();
+		initAccentColors();
 		controlBar.initialize( this, tabbedPane );
 
 		setIconImages( FlatSVGUtils.createWindowIconImages( "/com/formdev/flatlaf/demo/FlatLaf.svg" ) );
@@ -323,6 +332,78 @@ class DemoFrame
 			item.setEnabled( enabled );
 	}
 
+	// the real colors are defined in
+	// flatlaf-demo/src/main/resources/com/formdev/flatlaf/demo/FlatLightLaf.properties and
+	// flatlaf-demo/src/main/resources/com/formdev/flatlaf/demo/FlatDarkLaf.properties
+	private static String[] accentColorKeys = {
+		"Demo.accent.default", "Demo.accent.blue", "Demo.accent.purple", "Demo.accent.red",
+		"Demo.accent.orange", "Demo.accent.yellow", "Demo.accent.green",
+	};
+	private static String[] accentColorNames = {
+		"Default", "Blue", "Purple", "Red", "Orange", "Yellow", "Green",
+	};
+	private final JToggleButton[] accentColorButtons = new JToggleButton[accentColorKeys.length];
+	private JLabel accentColorLabel;
+
+	private void initAccentColors() {
+		accentColorLabel = new JLabel( "Accent color:" );
+
+		toolBar.add( Box.createHorizontalGlue() );
+		toolBar.add( accentColorLabel );
+
+		ButtonGroup group = new ButtonGroup();
+		for( int i = 0; i < accentColorButtons.length; i++ ) {
+			accentColorButtons[i] = new JToggleButton( new AccentColorIcon( accentColorKeys[i] ) );
+			accentColorButtons[i].setToolTipText( accentColorNames[i] );
+			accentColorButtons[i].addActionListener( this::accentColorChanged );
+			toolBar.add( accentColorButtons[i] );
+			group.add( accentColorButtons[i] );
+		}
+
+		accentColorButtons[0].setSelected( true );
+
+		UIManager.addPropertyChangeListener( e -> {
+			if( "lookAndFeel".equals( e.getPropertyName() ) )
+				updateAccentColorButtons();
+		} );
+		updateAccentColorButtons();
+	}
+
+	private void accentColorChanged( ActionEvent e ) {
+		String accentColor = accentColorKeys[0];
+		for( int i = 0; i < accentColorButtons.length; i++ ) {
+			if( accentColorButtons[i].isSelected() ) {
+				accentColor = accentColorKeys[i];
+				break;
+			}
+		}
+
+		FlatLaf.setGlobalExtraDefaults( (accentColor != accentColorKeys[0])
+			? Collections.singletonMap( "@accentColor", "$" + accentColor )
+			: null );
+
+		Class<? extends LookAndFeel> lafClass = UIManager.getLookAndFeel().getClass();
+		try {
+			FlatLaf.setup( lafClass.newInstance() );
+			FlatLaf.updateUI();
+		} catch( InstantiationException | IllegalAccessException ex ) {
+			LoggingFacade.INSTANCE.logSevere( null, ex );
+		}
+	}
+
+	private void updateAccentColorButtons() {
+		Class<? extends LookAndFeel> lafClass = UIManager.getLookAndFeel().getClass();
+		boolean isAccentColorSupported =
+			lafClass == FlatLightLaf.class ||
+			lafClass == FlatDarkLaf.class ||
+			lafClass == FlatIntelliJLaf.class ||
+			lafClass == FlatDarculaLaf.class;
+
+		accentColorLabel.setEnabled( isAccentColorSupported );
+		for( int i = 0; i < accentColorButtons.length; i++ )
+			accentColorButtons[i].setEnabled( isAccentColorSupported );
+	}
+
 	private void initComponents() {
 		// JFormDesigner - Component initialization - DO NOT MODIFY  //GEN-BEGIN:initComponents
 		JMenuBar menuBar1 = new JMenuBar();
@@ -369,7 +450,7 @@ class DemoFrame
 		JMenuItem showUIDefaultsInspectorMenuItem = new JMenuItem();
 		JMenu helpMenu = new JMenu();
 		JMenuItem aboutMenuItem = new JMenuItem();
-		JToolBar toolBar1 = new JToolBar();
+		toolBar = new JToolBar();
 		JButton backButton = new JButton();
 		JButton forwardButton = new JButton();
 		JButton cutButton = new JButton();
@@ -671,43 +752,43 @@ class DemoFrame
 		}
 		setJMenuBar(menuBar1);
 
-		//======== toolBar1 ========
+		//======== toolBar ========
 		{
-			toolBar1.setMargin(new Insets(3, 3, 3, 3));
+			toolBar.setMargin(new Insets(3, 3, 3, 3));
 
 			//---- backButton ----
 			backButton.setToolTipText("Back");
-			toolBar1.add(backButton);
+			toolBar.add(backButton);
 
 			//---- forwardButton ----
 			forwardButton.setToolTipText("Forward");
-			toolBar1.add(forwardButton);
+			toolBar.add(forwardButton);
-			toolBar1.addSeparator();
+			toolBar.addSeparator();
 
 			//---- cutButton ----
 			cutButton.setToolTipText("Cut");
-			toolBar1.add(cutButton);
+			toolBar.add(cutButton);
 
 			//---- copyButton ----
 			copyButton.setToolTipText("Copy");
-			toolBar1.add(copyButton);
+			toolBar.add(copyButton);
 
 			//---- pasteButton ----
 			pasteButton.setToolTipText("Paste");
-			toolBar1.add(pasteButton);
+			toolBar.add(pasteButton);
-			toolBar1.addSeparator();
+			toolBar.addSeparator();
 
 			//---- refreshButton ----
 			refreshButton.setToolTipText("Refresh");
-			toolBar1.add(refreshButton);
+			toolBar.add(refreshButton);
-			toolBar1.addSeparator();
+			toolBar.addSeparator();
 
 			//---- showToggleButton ----
 			showToggleButton.setSelected(true);
 			showToggleButton.setToolTipText("Show Details");
-			toolBar1.add(showToggleButton);
+			toolBar.add(showToggleButton);
 		}
-		contentPane.add(toolBar1, BorderLayout.NORTH);
+		contentPane.add(toolBar, BorderLayout.NORTH);
 
 		//======== contentPanel ========
 		{
@@ -813,8 +894,37 @@ class DemoFrame
 	private JCheckBoxMenuItem underlineMenuSelectionMenuItem;
 	private JCheckBoxMenuItem alwaysShowMnemonicsMenuItem;
 	private JCheckBoxMenuItem animatedLafChangeMenuItem;
+	private JToolBar toolBar;
 	private JTabbedPane tabbedPane;
 	private ControlBar controlBar;
 	IJThemesPanel themesPanel;
 	// JFormDesigner - End of variables declaration  //GEN-END:variables
+
+	//---- class AccentColorIcon ----------------------------------------------
+
+	private static class AccentColorIcon
+		extends FlatAbstractIcon
+	{
+		private final String colorKey;
+
+		AccentColorIcon( String colorKey ) {
+			super( 16, 16, null );
+			this.colorKey = colorKey;
+		}
+
+		@Override
+		protected void paintIcon( Component c, Graphics2D g ) {
+			Color color = UIManager.getColor( colorKey );
+			if( color == null )
+				color = Color.lightGray;
+			else if( !c.isEnabled() ) {
+				color = FlatLaf.isLafDark()
+					? ColorFunctions.shade( color, 0.5f )
+					: ColorFunctions.tint( color, 0.6f );
+			}
+
+			g.setColor( color );
+			g.fillRoundRect( 1, 1, width - 2, height - 2, 5, 5 );
+		}
+	}
 }

flatlaf-demo/src/main/java/com/formdev/flatlaf/demo/DemoFrame.jfd

@@ -1,4 +1,4 @@
-JFDML JFormDesigner: "7.0.3.1.342" Java: "16" encoding: "UTF-8"
+JFDML JFormDesigner: "7.0.4.0.360" Java: "11.0.11" encoding: "UTF-8"
 
 new FormModel {
 	contentType: "form/swing"
@@ -13,8 +13,11 @@ new FormModel {
 			"$locationPolicy": 2
 			"$sizePolicy": 2
 			add( new FormContainer( "javax.swing.JToolBar", new FormLayoutManager( class javax.swing.JToolBar ) ) {
-				name: "toolBar1"
+				name: "toolBar"
 				"margin": new java.awt.Insets( 3, 3, 3, 3 )
+				auxiliary() {
+					"JavaCodeGenerator.variableLocal": false
+				}
 				add( new FormComponent( "javax.swing.JButton" ) {
 					name: "backButton"
 					"toolTipText": "Back"

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

@@ -14,4 +14,18 @@
 # limitations under the License.
 #
 
+#---- Demo.accent ----
+
+# accent colors from https://github.com/89netraM/SystemColors/blob/master/src/net/asberg/macos/AccentColor.java
+Demo.accent.default = #4B6EAF
+Demo.accent.blue = #0A84FF
+Demo.accent.purple = #BF5AF2
+Demo.accent.red = #FF453A
+Demo.accent.orange = #FF9F0A
+Demo.accent.yellow = #FFCC00
+Demo.accent.green = #32D74B
+
+
+#---- HintPanel ----
+
 HintPanel.backgroundColor = darken(#ffffe1,80%)

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

@@ -14,4 +14,18 @@
 # limitations under the License.
 #
 
+#---- Demo.accent ----
+
+# accent colors from https://github.com/89netraM/SystemColors/blob/master/src/net/asberg/macos/AccentColor.java
+Demo.accent.default = #2675BF
+Demo.accent.blue = #007AFF
+Demo.accent.purple = #BF5AF2
+Demo.accent.red = #FF3B30
+Demo.accent.orange = #FF9500
+Demo.accent.yellow = #FFCC00
+Demo.accent.green = #28CD41
+
+
+#---- HintPanel ----
+
 HintPanel.backgroundColor = #ffffe1

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

@@ -33,7 +33,7 @@ UIColorHighlighter.stripingBackground = lighten(@textComponentBackground,5%)
 
 #---- Hyperlink ----
 
-Hyperlink.linkColor = #589df6
+Hyperlink.linkColor = $Component.linkColor
 Hyperlink.visitedColor = $Hyperlink.linkColor
 Hyperlink.disabledText = @disabledText
 

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

@@ -46,7 +46,7 @@ JXMonthView.monthStringForeground = @foreground
 JXMonthView.daysOfTheWeekForeground = #444
 JXMonthView.weekOfTheYearForeground = #666
 JXMonthView.unselectableDayForeground = #E02222
-JXMonthView.selectedBackground = #B9CEF8
+JXMonthView.selectedBackground = changeLightness(@selectionBackground,85%)
 JXMonthView.flaggedDayForeground = #E02222
 JXMonthView.leadingDayForeground = @disabledText
 JXMonthView.trailingDayForeground = @disabledText

flatlaf-testing/dumps/uidefaults/FlatDarculaLaf_1.8.0_202.txt

@@ -18,7 +18,7 @@
 
 #---- CheckBox ----
 
-- CheckBox.icon.focusedBackground #466d944d  30%  HSLA 210  36  43 30    javax.swing.plaf.ColorUIResource [UI]
+- CheckBox.icon.focusedBackground #446e9e4d  30%  HSLA 212  40  44 30    javax.swing.plaf.ColorUIResource [UI]
 
 
 #---- ComboBox ----
@@ -71,7 +71,7 @@
 
 #---- ProgressBar ----
 
-- ProgressBar.foreground         #4a88c7  HSL 210  53  54    javax.swing.plaf.ColorUIResource [UI]
+- ProgressBar.foreground         #4c87c8  HSL 211  53  54    javax.swing.plaf.ColorUIResource [UI]
 + ProgressBar.foreground         #a0a0a0  HSL   0   0  63    javax.swing.plaf.ColorUIResource [UI]
 
 - ProgressBar.selectionForeground #bbbbbb  HSL   0   0  73    javax.swing.plaf.ColorUIResource [UI]

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

@@ -64,31 +64,31 @@ BusyLabelUI                    com.formdev.flatlaf.swingx.ui.FlatBusyLabelUI
 Button.arc                     6
 Button.background              #4c5052  HSL 200   4  31    javax.swing.plaf.ColorUIResource [UI]
 Button.border                  [lazy] 1,1,1,1  false    com.formdev.flatlaf.ui.FlatButtonBorder [UI]
-Button.borderColor             #5e6060  HSL 180   1  37    javax.swing.plaf.ColorUIResource [UI]
+Button.borderColor             #5e6263  HSL 192   3  38    javax.swing.plaf.ColorUIResource [UI]
 Button.borderWidth             1
 Button.darkShadow              #7e7e7e  HSL   0   0  49    javax.swing.plaf.ColorUIResource [UI]
-Button.default.background      #365880  HSL 212  41  36    javax.swing.plaf.ColorUIResource [UI]
+Button.default.background      #375a81  HSL 212  40  36    javax.swing.plaf.ColorUIResource [UI]
 Button.default.boldText        true
-Button.default.borderColor     #4c708c  HSL 206  30  42    javax.swing.plaf.ColorUIResource [UI]
+Button.default.borderColor     #557394  HSL 211  27  46    javax.swing.plaf.ColorUIResource [UI]
 Button.default.borderWidth     1
-Button.default.focusColor      #43688c  HSL 210  35  41    javax.swing.plaf.ColorUIResource [UI]
+Button.default.focusColor      #416997  HSL 212  40  42    javax.swing.plaf.ColorUIResource [UI]
-Button.default.focusedBorderColor #537699  HSL 210  30  46    javax.swing.plaf.ColorUIResource [UI]
+Button.default.focusedBorderColor #5b7898  HSL 211  25  48    javax.swing.plaf.ColorUIResource [UI]
 Button.default.foreground      #bbbbbb  HSL   0   0  73    javax.swing.plaf.ColorUIResource [UI]
-Button.default.hoverBackground #3b5f8b  HSL 213  40  39    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(3% autoInverse)
+Button.default.hoverBackground #3c618c  HSL 212  40  39    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(3% autoInverse)
-Button.default.hoverBorderColor #537699  HSL 210  30  46    javax.swing.plaf.ColorUIResource [UI]
+Button.default.hoverBorderColor #5b7898  HSL 211  25  48    javax.swing.plaf.ColorUIResource [UI]
-Button.default.pressedBackground #3f6796  HSL 212  41  42    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(6% autoInverse)
+Button.default.pressedBackground #406996  HSL 211  40  42    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(6% autoInverse)
 Button.defaultButtonFollowsFocus false
 Button.disabledBackground      #3c3f41  HSL 204   4  25    javax.swing.plaf.ColorUIResource [UI]
-Button.disabledBorderColor     #5e6060  HSL 180   1  37    javax.swing.plaf.ColorUIResource [UI]
+Button.disabledBorderColor     #5e6263  HSL 192   3  38    javax.swing.plaf.ColorUIResource [UI]
 Button.disabledForeground      #888888  HSL   0   0  53    javax.swing.plaf.ColorUIResource [UI]
 Button.disabledSelectedBackground #53585a  HSL 197   4  34    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(3% autoInverse)
 Button.disabledText            #888888  HSL   0   0  53    javax.swing.plaf.ColorUIResource [UI]
-Button.focusedBorderColor      #466d94  HSL 210  36  43    javax.swing.plaf.ColorUIResource [UI]
+Button.focusedBorderColor      #446e9e  HSL 212  40  44    javax.swing.plaf.ColorUIResource [UI]
 Button.font                    [active] $defaultFont [UI]
 Button.foreground              #bbbbbb  HSL   0   0  73    javax.swing.plaf.ColorUIResource [UI]
 Button.highlight               #242424  HSL   0   0  14    javax.swing.plaf.ColorUIResource [UI]
 Button.hoverBackground         #53585a  HSL 197   4  34    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(3% autoInverse)
-Button.hoverBorderColor        #466d94  HSL 210  36  43    javax.swing.plaf.ColorUIResource [UI]
+Button.hoverBorderColor        #446e9e  HSL 212  40  44    javax.swing.plaf.ColorUIResource [UI]
 Button.iconTextGap             4
 Button.innerFocusWidth         1
 Button.light                   #313131  HSL   0   0  19    javax.swing.plaf.ColorUIResource [UI]
@@ -128,10 +128,10 @@ CheckBox.icon.checkmarkColor   #a7a7a7  HSL   0   0  65    javax.swing.plaf.Colo
 CheckBox.icon.disabledBackground #3c3f41  HSL 204   4  25    javax.swing.plaf.ColorUIResource [UI]
 CheckBox.icon.disabledBorderColor #545556  HSL 210   1  33    javax.swing.plaf.ColorUIResource [UI]
 CheckBox.icon.disabledCheckmarkColor #606060  HSL   0   0  38    javax.swing.plaf.ColorUIResource [UI]
-CheckBox.icon.focusedBackground #466d944d  30%  HSLA 210  36  43 30    javax.swing.plaf.ColorUIResource [UI]
+CheckBox.icon.focusedBackground #446e9e4d  30%  HSLA 212  40  44 30    javax.swing.plaf.ColorUIResource [UI]
-CheckBox.icon.focusedBorderColor #466d94  HSL 210  36  43    javax.swing.plaf.ColorUIResource [UI]
+CheckBox.icon.focusedBorderColor #446e9e  HSL 212  40  44    javax.swing.plaf.ColorUIResource [UI]
 CheckBox.icon.hoverBackground  #4a5152  HSL 188   5  31    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(3% autoInverse)
-CheckBox.icon.hoverBorderColor #466d94  HSL 210  36  43    javax.swing.plaf.ColorUIResource [UI]
+CheckBox.icon.hoverBorderColor #446e9e  HSL 212  40  44    javax.swing.plaf.ColorUIResource [UI]
 CheckBox.icon.pressedBackground #52595a  HSL 188   5  34    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(6% autoInverse)
 CheckBox.icon.selectedBackground #43494a  HSL 189   5  28    javax.swing.plaf.ColorUIResource [UI]
 CheckBox.icon.selectedBorderColor #6b6b6b  HSL   0   0  42    javax.swing.plaf.ColorUIResource [UI]
@@ -216,6 +216,7 @@ ComboBoxUI                     com.formdev.flatlaf.ui.FlatComboBoxUI
 
 #---- Component ----
 
+Component.accentColor          #4b6eaf  HSL 219  40  49    javax.swing.plaf.ColorUIResource [UI]
 Component.arc                  5
 Component.arrowType            chevron
 Component.borderColor          #646464  HSL   0   0  39    javax.swing.plaf.ColorUIResource [UI]
@@ -223,14 +224,14 @@ Component.custom.borderColor   #bf4040  HSL   0  50  50    com.formdev.flatlaf.u
 Component.disabledBorderColor  #646464  HSL   0   0  39    javax.swing.plaf.ColorUIResource [UI]
 Component.error.borderColor    #725555  HSL   0  15  39    javax.swing.plaf.ColorUIResource [UI]
 Component.error.focusedBorderColor #8b3c3c  HSL   0  40  39    javax.swing.plaf.ColorUIResource [UI]
-Component.focusColor           #3d6185  HSL 210  37  38    javax.swing.plaf.ColorUIResource [UI]
+Component.focusColor           #3c628c  HSL 212  40  39    javax.swing.plaf.ColorUIResource [UI]
 Component.focusWidth           0
-Component.focusedBorderColor   #466d94  HSL 210  36  43    javax.swing.plaf.ColorUIResource [UI]
+Component.focusedBorderColor   #446e9e  HSL 212  40  44    javax.swing.plaf.ColorUIResource [UI]
 Component.grayFilter           [lazy] [unknown type] com.formdev.flatlaf.util.GrayFilter
 Component.hideMnemonics        true
 Component.innerFocusWidth      0.5
 Component.innerOutlineWidth    1.0
-Component.linkColor            #589df6  HSL 214  90  65    javax.swing.plaf.ColorUIResource [UI]
+Component.linkColor            #579bf6  HSL 214  90  65    javax.swing.plaf.ColorUIResource [UI]
 Component.minimumWidth         64
 Component.warning.borderColor  #725627  HSL  38  49  30    javax.swing.plaf.ColorUIResource [UI]
 Component.warning.focusedBorderColor #ac7920  HSL  38  69  40    javax.swing.plaf.ColorUIResource [UI]
@@ -334,9 +335,9 @@ HelpButton.borderWidth         1
 HelpButton.disabledBackground  #3c3f41  HSL 204   4  25    javax.swing.plaf.ColorUIResource [UI]
 HelpButton.disabledBorderColor #545556  HSL 210   1  33    javax.swing.plaf.ColorUIResource [UI]
 HelpButton.disabledQuestionMarkColor #606060  HSL   0   0  38    javax.swing.plaf.ColorUIResource [UI]
-HelpButton.focusedBorderColor  #466d94  HSL 210  36  43    javax.swing.plaf.ColorUIResource [UI]
+HelpButton.focusedBorderColor  #446e9e  HSL 212  40  44    javax.swing.plaf.ColorUIResource [UI]
 HelpButton.hoverBackground     #4a5152  HSL 188   5  31    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(3% autoInverse)
-HelpButton.hoverBorderColor    #466d94  HSL 210  36  43    javax.swing.plaf.ColorUIResource [UI]
+HelpButton.hoverBorderColor    #446e9e  HSL 212  40  44    javax.swing.plaf.ColorUIResource [UI]
 HelpButton.icon                [lazy] 22,22    com.formdev.flatlaf.icons.FlatHelpButtonIcon [UI]
 HelpButton.innerFocusWidth     1
 HelpButton.pressedBackground   #52595a  HSL 188   5  34    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(6% autoInverse)
@@ -346,8 +347,8 @@ HelpButton.questionMarkColor   #a7a7a7  HSL   0   0  65    javax.swing.plaf.Colo
 #---- Hyperlink ----
 
 Hyperlink.disabledText         #888888  HSL   0   0  53    javax.swing.plaf.ColorUIResource [UI]
-Hyperlink.linkColor            #589df6  HSL 214  90  65    javax.swing.plaf.ColorUIResource [UI]
+Hyperlink.linkColor            #579bf6  HSL 214  90  65    javax.swing.plaf.ColorUIResource [UI]
-Hyperlink.visitedColor         #589df6  HSL 214  90  65    javax.swing.plaf.ColorUIResource [UI]
+Hyperlink.visitedColor         #579bf6  HSL 214  90  65    javax.swing.plaf.ColorUIResource [UI]
 HyperlinkUI                    com.formdev.flatlaf.swingx.ui.FlatHyperlinkUI
 
 
@@ -437,7 +438,7 @@ JXMonthView.weekOfTheYearForeground #888888  HSL   0   0  53    javax.swing.plaf
 
 #---- JXTitledPanel ----
 
-JXTitledPanel.borderColor      #5e6060  HSL 180   1  37    javax.swing.plaf.ColorUIResource [UI]
+JXTitledPanel.borderColor      #5e6263  HSL 192   3  38    javax.swing.plaf.ColorUIResource [UI]
 JXTitledPanel.captionInsets    4,10,4,10    javax.swing.plaf.InsetsUIResource [UI]
 JXTitledPanel.titleBackground  #4c5052  HSL 200   4  31    javax.swing.plaf.ColorUIResource [UI]
 JXTitledPanel.titleForeground  #bbbbbb  HSL   0   0  73    javax.swing.plaf.ColorUIResource [UI]
@@ -447,16 +448,16 @@ JXTitledPanel.titleForeground  #bbbbbb  HSL   0   0  73    javax.swing.plaf.Colo
 
 JideButton.background          #4c5052  HSL 200   4  31    javax.swing.plaf.ColorUIResource [UI]
 JideButton.border              [lazy] 0,0,0,0  false    com.formdev.flatlaf.ui.FlatMarginBorder [UI]
-JideButton.borderColor         #5e6060  HSL 180   1  37    javax.swing.plaf.ColorUIResource [UI]
+JideButton.borderColor         #5e6263  HSL 192   3  38    javax.swing.plaf.ColorUIResource [UI]
-JideButton.darkShadow          #5e6060  HSL 180   1  37    javax.swing.plaf.ColorUIResource [UI]
+JideButton.darkShadow          #5e6263  HSL 192   3  38    javax.swing.plaf.ColorUIResource [UI]
 JideButton.focusedBackground   #4e5355  HSL 197   4  32    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(1% autoInverse)
 JideButton.foreground          #bbbbbb  HSL   0   0  73    javax.swing.plaf.ColorUIResource [UI]
 JideButton.highlight           #656a6c  HSL 197   3  41    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(10% autoInverse)
-JideButton.light               #5e6060  HSL 180   1  37    javax.swing.plaf.ColorUIResource [UI]
+JideButton.light               #5e6263  HSL 192   3  38    javax.swing.plaf.ColorUIResource [UI]
 JideButton.margin              3,3,3,3    javax.swing.plaf.InsetsUIResource [UI]
 JideButton.selectedAndFocusedBackground #565a5d  HSL 206   4  35    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(4% autoInverse)
 JideButton.selectedBackground  #5d6265  HSL 203   4  38    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(7% autoInverse)
-JideButton.shadow              #5e6060  HSL 180   1  37    javax.swing.plaf.ColorUIResource [UI]
+JideButton.shadow              #5e6263  HSL 192   3  38    javax.swing.plaf.ColorUIResource [UI]
 JideButton.textIconGap         [active] 4
 JideButtonUI                   com.formdev.flatlaf.jideoss.ui.FlatJideButtonUI
 
@@ -532,7 +533,7 @@ List.foreground                #bbbbbb  HSL   0   0  73    javax.swing.plaf.Colo
 List.noFocusBorder             1,1,1,1  false    javax.swing.plaf.BorderUIResource$EmptyBorderUIResource [UI]
 List.selectionBackground       #4b6eaf  HSL 219  40  49    javax.swing.plaf.ColorUIResource [UI]
 List.selectionForeground       #bbbbbb  HSL   0   0  73    javax.swing.plaf.ColorUIResource [UI]
-List.selectionInactiveBackground #0d293e  HSL 206  65  15    javax.swing.plaf.ColorUIResource [UI]
+List.selectionInactiveBackground #0f2a3d  HSL 205  61  15    javax.swing.plaf.ColorUIResource [UI]
 List.selectionInactiveForeground #bbbbbb  HSL   0   0  73    javax.swing.plaf.ColorUIResource [UI]
 List.showCellFocusIndicator    false
 List.timeFactor                1000
@@ -612,7 +613,7 @@ MenuItem.textAcceleratorGap    24
 MenuItem.textNoAcceleratorGap  6
 MenuItem.underlineSelectionBackground #484c4f  HSL 206   5  30    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(10% autoInverse)
 MenuItem.underlineSelectionCheckBackground #3c588b  HSL 219  40  39    com.formdev.flatlaf.util.DerivedColor [UI]    darken(10%)
-MenuItem.underlineSelectionColor #4a88c7  HSL 210  53  54    javax.swing.plaf.ColorUIResource [UI]
+MenuItem.underlineSelectionColor #4c87c8  HSL 211  53  54    javax.swing.plaf.ColorUIResource [UI]
 MenuItem.underlineSelectionHeight 3
 
 
@@ -752,7 +753,7 @@ ProgressBar.cellLength         1
 ProgressBar.cellSpacing        0
 ProgressBar.cycleTime          4000
 ProgressBar.font               [active] Segoe UI plain 10    javax.swing.plaf.FontUIResource [UI]
-ProgressBar.foreground         #4a88c7  HSL 210  53  54    javax.swing.plaf.ColorUIResource [UI]
+ProgressBar.foreground         #4c87c8  HSL 211  53  54    javax.swing.plaf.ColorUIResource [UI]
 ProgressBar.horizontalSize     146,4    javax.swing.plaf.DimensionUIResource [UI]
 ProgressBar.repaintInterval    15
 ProgressBar.selectionBackground #bbbbbb  HSL   0   0  73    javax.swing.plaf.ColorUIResource [UI]
@@ -920,22 +921,22 @@ Slider.disabledTrackColor      #4c5052  HSL 200   4  31    javax.swing.plaf.Colo
 Slider.focus                   #7e7e7e  HSL   0   0  49    javax.swing.plaf.ColorUIResource [UI]
 Slider.focusInsets             0,0,0,0    javax.swing.plaf.InsetsUIResource [UI]
 Slider.focusWidth              4
-Slider.focusedColor            #3d6185b3  70%  HSLA 210  37  38 70    com.formdev.flatlaf.util.DerivedColor [UI]    fade(70%)
+Slider.focusedColor            #3c628cb3  70%  HSLA 212  40  39 70    com.formdev.flatlaf.util.DerivedColor [UI]    fade(70%)
 Slider.font                    [active] $defaultFont [UI]
 Slider.foreground              #bbbbbb  HSL   0   0  73    javax.swing.plaf.ColorUIResource [UI]
 Slider.highlight               #242424  HSL   0   0  14    javax.swing.plaf.ColorUIResource [UI]
 Slider.horizontalSize          200,21    java.awt.Dimension
-Slider.hoverThumbColor         #5d95cd  HSL 210  53  58    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(5% autoInverse)
+Slider.hoverThumbColor         #6094ce  HSL 212  53  59    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(5% autoInverse)
 Slider.minimumHorizontalSize   36,21    java.awt.Dimension
 Slider.minimumVerticalSize     21,36    java.awt.Dimension
 Slider.onlyLeftMouseButtonDrag true
-Slider.pressedThumbColor       #699cd1  HSL 211  53  62    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(8% autoInverse)
+Slider.pressedThumbColor       #6b9cd2  HSL 211  53  62    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(8% autoInverse)
 Slider.shadow                  #646464  HSL   0   0  39    javax.swing.plaf.ColorUIResource [UI]
-Slider.thumbColor              #4a88c7  HSL 210  53  54    javax.swing.plaf.ColorUIResource [UI]
+Slider.thumbColor              #4c87c8  HSL 211  53  54    javax.swing.plaf.ColorUIResource [UI]
 Slider.thumbSize               12,12    javax.swing.plaf.DimensionUIResource [UI]
 Slider.tickColor               #888888  HSL   0   0  53    javax.swing.plaf.ColorUIResource [UI]
 Slider.trackColor              #646464  HSL   0   0  39    javax.swing.plaf.ColorUIResource [UI]
-Slider.trackValueColor         #4a88c7  HSL 210  53  54    javax.swing.plaf.ColorUIResource [UI]
+Slider.trackValueColor         #4c87c8  HSL 211  53  54    javax.swing.plaf.ColorUIResource [UI]
 Slider.trackWidth              2
 Slider.verticalSize            21,200    java.awt.Dimension
 SliderUI                       com.formdev.flatlaf.ui.FlatSliderUI
@@ -1019,7 +1020,7 @@ TabbedPane.darkShadow          #7e7e7e  HSL   0   0  49    javax.swing.plaf.Colo
 TabbedPane.disabledForeground  #888888  HSL   0   0  53    javax.swing.plaf.ColorUIResource [UI]
 TabbedPane.disabledUnderlineColor #7a7a7a  HSL   0   0  48    javax.swing.plaf.ColorUIResource [UI]
 TabbedPane.focus               #bbbbbb  HSL   0   0  73    javax.swing.plaf.ColorUIResource [UI]
-TabbedPane.focusColor          #3d4b5c  HSL 213  20  30    javax.swing.plaf.ColorUIResource [UI]
+TabbedPane.focusColor          #404b5d  HSL 217  18  31    javax.swing.plaf.ColorUIResource [UI]
 TabbedPane.font                [active] $defaultFont [UI]
 TabbedPane.foreground          #bbbbbb  HSL   0   0  73    javax.swing.plaf.ColorUIResource [UI]
 TabbedPane.hasFullBorder       false
@@ -1048,7 +1049,7 @@ TabbedPane.tabsOpaque          true
 TabbedPane.tabsOverlapBorder   false
 TabbedPane.tabsPopupPolicy     asNeeded
 TabbedPane.textIconGap         4
-TabbedPane.underlineColor      #4a88c7  HSL 210  53  54    javax.swing.plaf.ColorUIResource [UI]
+TabbedPane.underlineColor      #4c87c8  HSL 211  53  54    javax.swing.plaf.ColorUIResource [UI]
 TabbedPaneUI                   com.formdev.flatlaf.ui.FlatTabbedPaneUI
 
 
@@ -1077,7 +1078,7 @@ Table.rowHeight                20
 Table.scrollPaneBorder         [lazy] 1,1,1,1  false    com.formdev.flatlaf.ui.FlatBorder [UI]
 Table.selectionBackground      #4b6eaf  HSL 219  40  49    javax.swing.plaf.ColorUIResource [UI]
 Table.selectionForeground      #bbbbbb  HSL   0   0  73    javax.swing.plaf.ColorUIResource [UI]
-Table.selectionInactiveBackground #0d293e  HSL 206  65  15    javax.swing.plaf.ColorUIResource [UI]
+Table.selectionInactiveBackground #0f2a3d  HSL 205  61  15    javax.swing.plaf.ColorUIResource [UI]
 Table.selectionInactiveForeground #bbbbbb  HSL   0   0  73    javax.swing.plaf.ColorUIResource [UI]
 Table.showHorizontalLines      false
 Table.showTrailingVerticalLine false
@@ -1108,7 +1109,7 @@ TableUI                        com.formdev.flatlaf.ui.FlatTableUI
 #---- TaskPane ----
 
 TaskPane.background            #3c3f41  HSL 204   4  25    javax.swing.plaf.ColorUIResource [UI]
-TaskPane.borderColor           #5e6060  HSL 180   1  37    javax.swing.plaf.ColorUIResource [UI]
+TaskPane.borderColor           #5e6263  HSL 192   3  38    javax.swing.plaf.ColorUIResource [UI]
 TaskPane.contentInsets         10,10,10,10    javax.swing.plaf.InsetsUIResource [UI]
 TaskPane.specialTitleBackground #afafaf  HSL   0   0  69    javax.swing.plaf.ColorUIResource [UI]
 TaskPane.specialTitleForeground #222222  HSL   0   0  13    javax.swing.plaf.ColorUIResource [UI]
@@ -1251,9 +1252,9 @@ ToggleButton.selectedBackground #656a6c  HSL 197   3  41    com.formdev.flatlaf.
 ToggleButton.selectedForeground #bbbbbb  HSL   0   0  73    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.shadow            #646464  HSL   0   0  39    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.tab.disabledUnderlineColor #7a7a7a  HSL   0   0  48    javax.swing.plaf.ColorUIResource [UI]
-ToggleButton.tab.focusBackground #3d4b5c  HSL 213  20  30    javax.swing.plaf.ColorUIResource [UI]
+ToggleButton.tab.focusBackground #404b5d  HSL 217  18  31    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.tab.hoverBackground #303234  HSL 210   4  20    com.formdev.flatlaf.util.DerivedColor [UI]    darken(5%)
-ToggleButton.tab.underlineColor #4a88c7  HSL 210  53  54    javax.swing.plaf.ColorUIResource [UI]
+ToggleButton.tab.underlineColor #4c87c8  HSL 211  53  54    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.tab.underlineHeight 2
 ToggleButton.textIconGap       4
 ToggleButton.textShiftOffset   0
@@ -1349,7 +1350,7 @@ Tree.scrollsOnExpand           true
 Tree.selectionBackground       #4b6eaf  HSL 219  40  49    javax.swing.plaf.ColorUIResource [UI]
 Tree.selectionBorderColor      #000000  HSL   0   0   0    javax.swing.plaf.ColorUIResource [UI]
 Tree.selectionForeground       #bbbbbb  HSL   0   0  73    javax.swing.plaf.ColorUIResource [UI]
-Tree.selectionInactiveBackground #0d293e  HSL 206  65  15    javax.swing.plaf.ColorUIResource [UI]
+Tree.selectionInactiveBackground #0f2a3d  HSL 205  61  15    javax.swing.plaf.ColorUIResource [UI]
 Tree.selectionInactiveForeground #bbbbbb  HSL   0   0  73    javax.swing.plaf.ColorUIResource [UI]
 Tree.showCellFocusIndicator    false
 Tree.textBackground            #45494a  HSL 192   3  28    javax.swing.plaf.ColorUIResource [UI]

flatlaf-testing/dumps/uidefaults/FlatIntelliJLaf_1.8.0_202.txt

@@ -13,43 +13,43 @@
 + Button.border                  [lazy] 3,3,3,3  false    com.formdev.flatlaf.ui.FlatButtonBorder [UI]
 
 - Button.default.background      #ffffff  HSL   0   0 100    javax.swing.plaf.ColorUIResource [UI]
-+ Button.default.background      #4d8ac9  HSL 210  53  55    javax.swing.plaf.ColorUIResource [UI]
++ Button.default.background      #478ac9  HSL 209  55  53    javax.swing.plaf.ColorUIResource [UI]
 
 + Button.default.boldText        true
 
-- Button.default.borderColor     #4f9ee3  HSL 208  73  60    javax.swing.plaf.ColorUIResource [UI]
+- Button.default.borderColor     #4e9de7  HSL 209  76  61    javax.swing.plaf.ColorUIResource [UI]
-+ Button.default.borderColor     #3d75b2  HSL 211  49  47    javax.swing.plaf.ColorUIResource [UI]
++ Button.default.borderColor     #3c75ab  HSL 209  48  45    javax.swing.plaf.ColorUIResource [UI]
 
 - Button.default.borderWidth     2
 + Button.default.borderWidth     1
 
-- Button.default.focusedBackground #e3f1fa  HSL 203  70  94    javax.swing.plaf.ColorUIResource [UI]
+- Button.default.focusedBackground #eaf3fb  HSL 208  68  95    javax.swing.plaf.ColorUIResource [UI]
 
-- Button.default.focusedBorderColor #87afda  HSL 211  53  69    javax.swing.plaf.ColorUIResource [UI]
+- Button.default.focusedBorderColor #89b0d4  HSL 209  47  68    javax.swing.plaf.ColorUIResource [UI]
-+ Button.default.focusedBorderColor #a9c9f5  HSL 215  79  81    javax.swing.plaf.ColorUIResource [UI]
++ Button.default.focusedBorderColor #a3c5e4  HSL 209  55  77    javax.swing.plaf.ColorUIResource [UI]
 
 - Button.default.foreground      #000000  HSL   0   0   0    javax.swing.plaf.ColorUIResource [UI]
 + Button.default.foreground      #ffffff  HSL   0   0 100    javax.swing.plaf.ColorUIResource [UI]
 
 - Button.default.hoverBackground #f7f7f7  HSL   0   0  97    com.formdev.flatlaf.util.DerivedColor [UI]    darken(3% autoInverse)
-+ Button.default.hoverBackground #4182c5  HSL 210  53  51    com.formdev.flatlaf.util.DerivedColor [UI]    darken(3% autoInverse)
++ Button.default.hoverBackground #3b82c6  HSL 209  55  50    com.formdev.flatlaf.util.DerivedColor [UI]    darken(3% autoInverse)
 
-- Button.default.hoverBorderColor #87afda  HSL 211  53  69    javax.swing.plaf.ColorUIResource [UI]
+- Button.default.hoverBorderColor #89b0d4  HSL 209  47  68    javax.swing.plaf.ColorUIResource [UI]
-+ Button.default.hoverBorderColor #a9c9f5  HSL 215  79  81    javax.swing.plaf.ColorUIResource [UI]
++ Button.default.hoverBorderColor #a3c5e4  HSL 209  55  77    javax.swing.plaf.ColorUIResource [UI]
 
 - Button.default.pressedBackground #e6e6e6  HSL   0   0  90    com.formdev.flatlaf.util.DerivedColor [UI]    darken(10% autoInverse)
-+ Button.default.pressedBackground #3571ae  HSL 210  53  45    com.formdev.flatlaf.util.DerivedColor [UI]    darken(10% autoInverse)
++ Button.default.pressedBackground #3270ab  HSL 209  55  43    com.formdev.flatlaf.util.DerivedColor [UI]    darken(10% autoInverse)
 
-- Button.focusedBackground       #e3f1fa  HSL 203  70  94    javax.swing.plaf.ColorUIResource [UI]
+- Button.focusedBackground       #eaf3fb  HSL 208  68  95    javax.swing.plaf.ColorUIResource [UI]
 
 
 #---- CheckBox ----
 
-- CheckBox.icon.focusedBackground #e3f1fa  HSL 203  70  94    javax.swing.plaf.ColorUIResource [UI]
+- CheckBox.icon.focusedBackground #eaf3fb  HSL 208  68  95    javax.swing.plaf.ColorUIResource [UI]
 
 + CheckBox.icon.style            filled
 
-- CheckBox.icon[filled].selectedFocusedCheckmarkColor #e3f1fa  HSL 203  70  94    javax.swing.plaf.ColorUIResource [UI]
+- CheckBox.icon[filled].selectedFocusedCheckmarkColor #eaf3fb  HSL 208  68  95    javax.swing.plaf.ColorUIResource [UI]
 
 
 #---- ComboBox ----
@@ -81,7 +81,7 @@
 
 #---- HelpButton ----
 
-- HelpButton.focusedBackground   #e3f1fa  HSL 203  70  94    javax.swing.plaf.ColorUIResource [UI]
+- HelpButton.focusedBackground   #eaf3fb  HSL 208  68  95    javax.swing.plaf.ColorUIResource [UI]
 
 - HelpButton.icon                [lazy] 22,22    com.formdev.flatlaf.icons.FlatHelpButtonIcon [UI]
 + HelpButton.icon                [lazy] 26,26    com.formdev.flatlaf.icons.FlatHelpButtonIcon [UI]

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

@@ -68,28 +68,28 @@ Button.borderColor             #c4c4c4  HSL   0   0  77    javax.swing.plaf.Colo
 Button.borderWidth             1
 Button.darkShadow              #9e9e9e  HSL   0   0  62    javax.swing.plaf.ColorUIResource [UI]
 Button.default.background      #ffffff  HSL   0   0 100    javax.swing.plaf.ColorUIResource [UI]
-Button.default.borderColor     #4f9ee3  HSL 208  73  60    javax.swing.plaf.ColorUIResource [UI]
+Button.default.borderColor     #4e9de7  HSL 209  76  61    javax.swing.plaf.ColorUIResource [UI]
 Button.default.borderWidth     2
-Button.default.focusColor      #97c3f3  HSL 211  79  77    javax.swing.plaf.ColorUIResource [UI]
+Button.default.focusColor      #98c3eb  HSL 209  67  76    javax.swing.plaf.ColorUIResource [UI]
-Button.default.focusedBackground #e3f1fa  HSL 203  70  94    javax.swing.plaf.ColorUIResource [UI]
+Button.default.focusedBackground #eaf3fb  HSL 208  68  95    javax.swing.plaf.ColorUIResource [UI]
-Button.default.focusedBorderColor #87afda  HSL 211  53  69    javax.swing.plaf.ColorUIResource [UI]
+Button.default.focusedBorderColor #89b0d4  HSL 209  47  68    javax.swing.plaf.ColorUIResource [UI]
 Button.default.foreground      #000000  HSL   0   0   0    javax.swing.plaf.ColorUIResource [UI]
 Button.default.hoverBackground #f7f7f7  HSL   0   0  97    com.formdev.flatlaf.util.DerivedColor [UI]    darken(3% autoInverse)
-Button.default.hoverBorderColor #87afda  HSL 211  53  69    javax.swing.plaf.ColorUIResource [UI]
+Button.default.hoverBorderColor #89b0d4  HSL 209  47  68    javax.swing.plaf.ColorUIResource [UI]
 Button.default.pressedBackground #e6e6e6  HSL   0   0  90    com.formdev.flatlaf.util.DerivedColor [UI]    darken(10% autoInverse)
 Button.defaultButtonFollowsFocus false
 Button.disabledBackground      #f2f2f2  HSL   0   0  95    javax.swing.plaf.ColorUIResource [UI]
-Button.disabledBorderColor     #cfcfcf  HSL   0   0  81    javax.swing.plaf.ColorUIResource [UI]
+Button.disabledBorderColor     #cecece  HSL   0   0  81    javax.swing.plaf.ColorUIResource [UI]
 Button.disabledForeground      #8c8c8c  HSL   0   0  55    javax.swing.plaf.ColorUIResource [UI]
 Button.disabledSelectedBackground #dedede  HSL   0   0  87    com.formdev.flatlaf.util.DerivedColor [UI]    darken(13% autoInverse)
 Button.disabledText            #8c8c8c  HSL   0   0  55    javax.swing.plaf.ColorUIResource [UI]
-Button.focusedBackground       #e3f1fa  HSL 203  70  94    javax.swing.plaf.ColorUIResource [UI]
+Button.focusedBackground       #eaf3fb  HSL 208  68  95    javax.swing.plaf.ColorUIResource [UI]
-Button.focusedBorderColor      #87afda  HSL 211  53  69    javax.swing.plaf.ColorUIResource [UI]
+Button.focusedBorderColor      #89b0d4  HSL 209  47  68    javax.swing.plaf.ColorUIResource [UI]
 Button.font                    [active] $defaultFont [UI]
 Button.foreground              #000000  HSL   0   0   0    javax.swing.plaf.ColorUIResource [UI]
 Button.highlight               #ffffff  HSL   0   0 100    javax.swing.plaf.ColorUIResource [UI]
 Button.hoverBackground         #f7f7f7  HSL   0   0  97    com.formdev.flatlaf.util.DerivedColor [UI]    darken(3% autoInverse)
-Button.hoverBorderColor        #87afda  HSL 211  53  69    javax.swing.plaf.ColorUIResource [UI]
+Button.hoverBorderColor        #89b0d4  HSL 209  47  68    javax.swing.plaf.ColorUIResource [UI]
 Button.iconTextGap             4
 Button.innerFocusWidth         0
 Button.light                   #e3e3e3  HSL   0   0  89    javax.swing.plaf.ColorUIResource [UI]
@@ -125,27 +125,27 @@ CheckBox.font                  [active] $defaultFont [UI]
 CheckBox.foreground            #000000  HSL   0   0   0    javax.swing.plaf.ColorUIResource [UI]
 CheckBox.icon.background       #ffffff  HSL   0   0 100    javax.swing.plaf.ColorUIResource [UI]
 CheckBox.icon.borderColor      #b0b0b0  HSL   0   0  69    javax.swing.plaf.ColorUIResource [UI]
-CheckBox.icon.checkmarkColor   #4f9ee3  HSL 208  73  60    javax.swing.plaf.ColorUIResource [UI]
+CheckBox.icon.checkmarkColor   #4e9de7  HSL 209  76  61    javax.swing.plaf.ColorUIResource [UI]
 CheckBox.icon.disabledBackground #f2f2f2  HSL   0   0  95    javax.swing.plaf.ColorUIResource [UI]
 CheckBox.icon.disabledBorderColor #bdbdbd  HSL   0   0  74    javax.swing.plaf.ColorUIResource [UI]
 CheckBox.icon.disabledCheckmarkColor #ababab  HSL   0   0  67    javax.swing.plaf.ColorUIResource [UI]
-CheckBox.icon.focusedBackground #e3f1fa  HSL 203  70  94    javax.swing.plaf.ColorUIResource [UI]
+CheckBox.icon.focusedBackground #eaf3fb  HSL 208  68  95    javax.swing.plaf.ColorUIResource [UI]
-CheckBox.icon.focusedBorderColor #7b9fc7  HSL 212  40  63    javax.swing.plaf.ColorUIResource [UI]
+CheckBox.icon.focusedBorderColor #7b9ebf  HSL 209  35  62    javax.swing.plaf.ColorUIResource [UI]
 CheckBox.icon.hoverBackground  #f7f7f7  HSL   0   0  97    com.formdev.flatlaf.util.DerivedColor [UI]    darken(3% autoInverse)
-CheckBox.icon.hoverBorderColor #7b9fc7  HSL 212  40  63    javax.swing.plaf.ColorUIResource [UI]
+CheckBox.icon.hoverBorderColor #7b9ebf  HSL 209  35  62    javax.swing.plaf.ColorUIResource [UI]
 CheckBox.icon.pressedBackground #e6e6e6  HSL   0   0  90    com.formdev.flatlaf.util.DerivedColor [UI]    darken(10% autoInverse)
 CheckBox.icon.selectedBackground #ffffff  HSL   0   0 100    javax.swing.plaf.ColorUIResource [UI]
 CheckBox.icon.selectedBorderColor #b0b0b0  HSL   0   0  69    javax.swing.plaf.ColorUIResource [UI]
 CheckBox.icon                  [lazy] 15,15    com.formdev.flatlaf.icons.FlatCheckBoxIcon [UI]
 CheckBox.iconTextGap           4
 CheckBox.icon[filled].checkmarkColor #ffffff  HSL   0   0 100    javax.swing.plaf.ColorUIResource [UI]
-CheckBox.icon[filled].selectedBackground #4f9ee3  HSL 208  73  60    javax.swing.plaf.ColorUIResource [UI]
+CheckBox.icon[filled].selectedBackground #4e9de7  HSL 209  76  61    javax.swing.plaf.ColorUIResource [UI]
-CheckBox.icon[filled].selectedBorderColor #4b97d9  HSL 208  65  57    javax.swing.plaf.ColorUIResource [UI]
+CheckBox.icon[filled].selectedBorderColor #4a95db  HSL 209  67  57    javax.swing.plaf.ColorUIResource [UI]
-CheckBox.icon[filled].selectedFocusedBackground #4f9ee3  HSL 208  73  60    javax.swing.plaf.ColorUIResource [UI]
+CheckBox.icon[filled].selectedFocusedBackground #4e9de7  HSL 209  76  61    javax.swing.plaf.ColorUIResource [UI]
-CheckBox.icon[filled].selectedFocusedBorderColor #accff7  HSL 212  82  82    javax.swing.plaf.ColorUIResource [UI]
+CheckBox.icon[filled].selectedFocusedBorderColor #a7cef3  HSL 209  76  80    javax.swing.plaf.ColorUIResource [UI]
-CheckBox.icon[filled].selectedFocusedCheckmarkColor #e3f1fa  HSL 203  70  94    javax.swing.plaf.ColorUIResource [UI]
+CheckBox.icon[filled].selectedFocusedCheckmarkColor #eaf3fb  HSL 208  68  95    javax.swing.plaf.ColorUIResource [UI]
-CheckBox.icon[filled].selectedHoverBackground #3992e0  HSL 208  73  55    com.formdev.flatlaf.util.DerivedColor [UI]    darken(5% autoInverse)
+CheckBox.icon[filled].selectedHoverBackground #3891e4  HSL 209  76  56    com.formdev.flatlaf.util.DerivedColor [UI]    darken(5% autoInverse)
-CheckBox.icon[filled].selectedPressedBackground #2386dc  HSL 208  73  50    com.formdev.flatlaf.util.DerivedColor [UI]    darken(10% autoInverse)
+CheckBox.icon[filled].selectedPressedBackground #2184e1  HSL 209  76  51    com.formdev.flatlaf.util.DerivedColor [UI]    darken(10% autoInverse)
 CheckBox.margin                2,2,2,2    javax.swing.plaf.InsetsUIResource [UI]
 CheckBox.rollover              true
 CheckBox.textIconGap           4
@@ -220,21 +220,22 @@ ComboBoxUI                     com.formdev.flatlaf.ui.FlatComboBoxUI
 
 #---- Component ----
 
+Component.accentColor          #2675bf  HSL 209  67  45    javax.swing.plaf.ColorUIResource [UI]
 Component.arc                  5
 Component.arrowType            chevron
 Component.borderColor          #c4c4c4  HSL   0   0  77    javax.swing.plaf.ColorUIResource [UI]
 Component.custom.borderColor   #f38d8d  HSL   0  81  75    com.formdev.flatlaf.util.DerivedColor [UI]    desaturate(20%) lighten(25%)
-Component.disabledBorderColor  #cfcfcf  HSL   0   0  81    javax.swing.plaf.ColorUIResource [UI]
+Component.disabledBorderColor  #cecece  HSL   0   0  81    javax.swing.plaf.ColorUIResource [UI]
 Component.error.borderColor    #ebb8bc  HSL 355  56  82    javax.swing.plaf.ColorUIResource [UI]
 Component.error.focusedBorderColor #e53e4d  HSL 355  76  57    javax.swing.plaf.ColorUIResource [UI]
-Component.focusColor           #97c3f3  HSL 211  79  77    javax.swing.plaf.ColorUIResource [UI]
+Component.focusColor           #98c3eb  HSL 209  67  76    javax.swing.plaf.ColorUIResource [UI]
 Component.focusWidth           0
-Component.focusedBorderColor   #87afda  HSL 211  53  69    javax.swing.plaf.ColorUIResource [UI]
+Component.focusedBorderColor   #89b0d4  HSL 209  47  68    javax.swing.plaf.ColorUIResource [UI]
 Component.grayFilter           [lazy] [unknown type] com.formdev.flatlaf.util.GrayFilter
 Component.hideMnemonics        true
 Component.innerFocusWidth      0.5
 Component.innerOutlineWidth    1.0
-Component.linkColor            #2470b3  HSL 208  67  42    javax.swing.plaf.ColorUIResource [UI]
+Component.linkColor            #236db2  HSL 209  67  42    javax.swing.plaf.ColorUIResource [UI]
 Component.minimumWidth         64
 Component.warning.borderColor  #fed284  HSL  38  98  76    javax.swing.plaf.ColorUIResource [UI]
 Component.warning.focusedBorderColor #e2a53a  HSL  38  74  56    javax.swing.plaf.ColorUIResource [UI]
@@ -338,21 +339,21 @@ HelpButton.borderWidth         1
 HelpButton.disabledBackground  #f2f2f2  HSL   0   0  95    javax.swing.plaf.ColorUIResource [UI]
 HelpButton.disabledBorderColor #bdbdbd  HSL   0   0  74    javax.swing.plaf.ColorUIResource [UI]
 HelpButton.disabledQuestionMarkColor #ababab  HSL   0   0  67    javax.swing.plaf.ColorUIResource [UI]
-HelpButton.focusedBackground   #e3f1fa  HSL 203  70  94    javax.swing.plaf.ColorUIResource [UI]
+HelpButton.focusedBackground   #eaf3fb  HSL 208  68  95    javax.swing.plaf.ColorUIResource [UI]
-HelpButton.focusedBorderColor  #7b9fc7  HSL 212  40  63    javax.swing.plaf.ColorUIResource [UI]
+HelpButton.focusedBorderColor  #7b9ebf  HSL 209  35  62    javax.swing.plaf.ColorUIResource [UI]
 HelpButton.hoverBackground     #f7f7f7  HSL   0   0  97    com.formdev.flatlaf.util.DerivedColor [UI]    darken(3% autoInverse)
-HelpButton.hoverBorderColor    #7b9fc7  HSL 212  40  63    javax.swing.plaf.ColorUIResource [UI]
+HelpButton.hoverBorderColor    #7b9ebf  HSL 209  35  62    javax.swing.plaf.ColorUIResource [UI]
 HelpButton.icon                [lazy] 22,22    com.formdev.flatlaf.icons.FlatHelpButtonIcon [UI]
 HelpButton.innerFocusWidth     0
 HelpButton.pressedBackground   #e6e6e6  HSL   0   0  90    com.formdev.flatlaf.util.DerivedColor [UI]    darken(10% autoInverse)
-HelpButton.questionMarkColor   #4f9ee3  HSL 208  73  60    javax.swing.plaf.ColorUIResource [UI]
+HelpButton.questionMarkColor   #4e9de7  HSL 209  76  61    javax.swing.plaf.ColorUIResource [UI]
 
 
 #---- Hyperlink ----
 
 Hyperlink.disabledText         #8c8c8c  HSL   0   0  55    javax.swing.plaf.ColorUIResource [UI]
-Hyperlink.linkColor            #2470b3  HSL 208  67  42    javax.swing.plaf.ColorUIResource [UI]
+Hyperlink.linkColor            #236db2  HSL 209  67  42    javax.swing.plaf.ColorUIResource [UI]
-Hyperlink.visitedColor         #2470b3  HSL 208  67  42    javax.swing.plaf.ColorUIResource [UI]
+Hyperlink.visitedColor         #236db2  HSL 209  67  42    javax.swing.plaf.ColorUIResource [UI]
 HyperlinkUI                    com.formdev.flatlaf.swingx.ui.FlatHyperlinkUI
 
 
@@ -434,7 +435,7 @@ JXMonthView.monthDownFileName  [lazy] 20,20    com.formdev.flatlaf.swingx.ui.Fla
 JXMonthView.monthStringBackground #dfdfdf  HSL   0   0  87    javax.swing.plaf.ColorUIResource [UI]
 JXMonthView.monthStringForeground #000000  HSL   0   0   0    javax.swing.plaf.ColorUIResource [UI]
 JXMonthView.monthUpFileName    [lazy] 20,20    com.formdev.flatlaf.swingx.ui.FlatMonthUpIcon [UI]
-JXMonthView.selectedBackground #b9cef8  HSL 220  82  85    javax.swing.plaf.ColorUIResource [UI]
+JXMonthView.selectedBackground #bfdaf2  HSL 208  66  85    javax.swing.plaf.ColorUIResource [UI]
 JXMonthView.trailingDayForeground #8c8c8c  HSL   0   0  55    javax.swing.plaf.ColorUIResource [UI]
 JXMonthView.unselectableDayForeground #e02222  HSL   0  75  51    javax.swing.plaf.ColorUIResource [UI]
 JXMonthView.weekOfTheYearForeground #666666  HSL   0   0  40    javax.swing.plaf.ColorUIResource [UI]
@@ -617,13 +618,13 @@ MenuItem.textAcceleratorGap    24
 MenuItem.textNoAcceleratorGap  6
 MenuItem.underlineSelectionBackground #e6e6e6  HSL   0   0  90    com.formdev.flatlaf.util.DerivedColor [UI]    darken(10% autoInverse)
 MenuItem.underlineSelectionCheckBackground #bfd9f2  HSL 209  66  85    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(40%)
-MenuItem.underlineSelectionColor #4083c9  HSL 211  56  52    javax.swing.plaf.ColorUIResource [UI]
+MenuItem.underlineSelectionColor #3c83c5  HSL 209  54  50    javax.swing.plaf.ColorUIResource [UI]
 MenuItem.underlineSelectionHeight 3
 
 
 #---- MenuItemCheckBox ----
 
-MenuItemCheckBox.icon.checkmarkColor #4f9ee3  HSL 208  73  60    javax.swing.plaf.ColorUIResource [UI]
+MenuItemCheckBox.icon.checkmarkColor #4e9de7  HSL 209  76  61    javax.swing.plaf.ColorUIResource [UI]
 MenuItemCheckBox.icon.disabledCheckmarkColor #ababab  HSL   0   0  67    javax.swing.plaf.ColorUIResource [UI]
 
 
@@ -757,7 +758,7 @@ ProgressBar.cellLength         1
 ProgressBar.cellSpacing        0
 ProgressBar.cycleTime          4000
 ProgressBar.font               [active] Segoe UI plain 10    javax.swing.plaf.FontUIResource [UI]
-ProgressBar.foreground         #1e82e6  HSL 210  80  51    javax.swing.plaf.ColorUIResource [UI]
+ProgressBar.foreground         #2285e1  HSL 209  76  51    javax.swing.plaf.ColorUIResource [UI]
 ProgressBar.horizontalSize     146,4    javax.swing.plaf.DimensionUIResource [UI]
 ProgressBar.repaintInterval    15
 ProgressBar.selectionBackground #000000  HSL   0   0   0    javax.swing.plaf.ColorUIResource [UI]
@@ -925,22 +926,22 @@ Slider.disabledTrackColor      #c0c0c0  HSL   0   0  75    javax.swing.plaf.Colo
 Slider.focus                   #9e9e9e  HSL   0   0  62    javax.swing.plaf.ColorUIResource [UI]
 Slider.focusInsets             0,0,0,0    javax.swing.plaf.InsetsUIResource [UI]
 Slider.focusWidth              4
-Slider.focusedColor            #97c3f380  50%  HSLA 211  79  77 50    com.formdev.flatlaf.util.DerivedColor [UI]    fade(50%)
+Slider.focusedColor            #98c3eb80  50%  HSLA 209  67  76 50    com.formdev.flatlaf.util.DerivedColor [UI]    fade(50%)
 Slider.font                    [active] $defaultFont [UI]
 Slider.foreground              #000000  HSL   0   0   0    javax.swing.plaf.ColorUIResource [UI]
 Slider.highlight               #ffffff  HSL   0   0 100    javax.swing.plaf.ColorUIResource [UI]
 Slider.horizontalSize          200,21    java.awt.Dimension
-Slider.hoverThumbColor         #1775d3  HSL 210  80  46    com.formdev.flatlaf.util.DerivedColor [UI]    darken(5% autoInverse)
+Slider.hoverThumbColor         #1c78ce  HSL 209  76  46    com.formdev.flatlaf.util.DerivedColor [UI]    darken(5% autoInverse)
 Slider.minimumHorizontalSize   36,21    java.awt.Dimension
 Slider.minimumVerticalSize     21,36    java.awt.Dimension
 Slider.onlyLeftMouseButtonDrag true
-Slider.pressedThumbColor       #166ec5  HSL 210  80  43    com.formdev.flatlaf.util.DerivedColor [UI]    darken(8% autoInverse)
+Slider.pressedThumbColor       #1a70c0  HSL 209  76  43    com.formdev.flatlaf.util.DerivedColor [UI]    darken(8% autoInverse)
 Slider.shadow                  #c4c4c4  HSL   0   0  77    javax.swing.plaf.ColorUIResource [UI]
-Slider.thumbColor              #1e82e6  HSL 210  80  51    javax.swing.plaf.ColorUIResource [UI]
+Slider.thumbColor              #2285e1  HSL 209  76  51    javax.swing.plaf.ColorUIResource [UI]
 Slider.thumbSize               12,12    javax.swing.plaf.DimensionUIResource [UI]
 Slider.tickColor               #888888  HSL   0   0  53    javax.swing.plaf.ColorUIResource [UI]
 Slider.trackColor              #c4c4c4  HSL   0   0  77    javax.swing.plaf.ColorUIResource [UI]
-Slider.trackValueColor         #1e82e6  HSL 210  80  51    javax.swing.plaf.ColorUIResource [UI]
+Slider.trackValueColor         #2285e1  HSL 209  76  51    javax.swing.plaf.ColorUIResource [UI]
 Slider.trackWidth              2
 Slider.verticalSize            21,200    java.awt.Dimension
 SliderUI                       com.formdev.flatlaf.ui.FlatSliderUI
@@ -1024,7 +1025,7 @@ TabbedPane.darkShadow          #9e9e9e  HSL   0   0  62    javax.swing.plaf.Colo
 TabbedPane.disabledForeground  #8c8c8c  HSL   0   0  55    javax.swing.plaf.ColorUIResource [UI]
 TabbedPane.disabledUnderlineColor #ababab  HSL   0   0  67    javax.swing.plaf.ColorUIResource [UI]
 TabbedPane.focus               #000000  HSL   0   0   0    javax.swing.plaf.ColorUIResource [UI]
-TabbedPane.focusColor          #dae4ed  HSL 208  35  89    javax.swing.plaf.ColorUIResource [UI]
+TabbedPane.focusColor          #dee6ed  HSL 208  29  90    javax.swing.plaf.ColorUIResource [UI]
 TabbedPane.font                [active] $defaultFont [UI]
 TabbedPane.foreground          #000000  HSL   0   0   0    javax.swing.plaf.ColorUIResource [UI]
 TabbedPane.hasFullBorder       false
@@ -1053,7 +1054,7 @@ TabbedPane.tabsOpaque          true
 TabbedPane.tabsOverlapBorder   false
 TabbedPane.tabsPopupPolicy     asNeeded
 TabbedPane.textIconGap         4
-TabbedPane.underlineColor      #4083c9  HSL 211  56  52    javax.swing.plaf.ColorUIResource [UI]
+TabbedPane.underlineColor      #3c83c5  HSL 209  54  50    javax.swing.plaf.ColorUIResource [UI]
 TabbedPaneUI                   com.formdev.flatlaf.ui.FlatTabbedPaneUI
 
 
@@ -1256,9 +1257,9 @@ ToggleButton.selectedBackground #cccccc  HSL   0   0  80    com.formdev.flatlaf.
 ToggleButton.selectedForeground #000000  HSL   0   0   0    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.shadow            #c4c4c4  HSL   0   0  77    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.tab.disabledUnderlineColor #ababab  HSL   0   0  67    javax.swing.plaf.ColorUIResource [UI]
-ToggleButton.tab.focusBackground #dae4ed  HSL 208  35  89    javax.swing.plaf.ColorUIResource [UI]
+ToggleButton.tab.focusBackground #dee6ed  HSL 208  29  90    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.tab.hoverBackground #e0e0e0  HSL   0   0  88    com.formdev.flatlaf.util.DerivedColor [UI]    darken(7% autoInverse)
-ToggleButton.tab.underlineColor #4083c9  HSL 211  56  52    javax.swing.plaf.ColorUIResource [UI]
+ToggleButton.tab.underlineColor #3c83c5  HSL 209  54  50    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.tab.underlineHeight 2
 ToggleButton.textIconGap       4
 ToggleButton.textShiftOffset   0

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

@@ -405,6 +405,13 @@ class FlatCompletionProvider
 			setParameterizedCompletionParams( '(', ",", ')' );
 			setParameterChoicesProvider( this );
 
+			addFunction( "if",
+				"condition", "evaluates to true if: is not \"null\" and is not \"false\" and is not an integer with zero value",
+				"trueValue", "used if condition is true",
+				"falseValue", "used if condition is false" );
+			addFunction( "lazy",
+				"uiKey", "UI key (without leading '$')" );
+
 			addFunction( "rgb",
 				"red", "0-255 or 0-100%",
 				"green", "0-255 or 0-100%",
@@ -471,6 +478,12 @@ class FlatCompletionProvider
 			addFunction( "shade",
 				"color", colorParamDesc,
 				"weight", weightParamDesc );
+
+			addFunction( "contrast",
+				"color", colorParamDesc,
+				"dark", colorParamDesc,
+				"light", colorParamDesc,
+				"threshold", "(optional) 0-100%, default is 43%" );
 		}
 
 		private void addFunction( String name, String... paramNamesAndDescs ) {

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

@@ -31,6 +31,7 @@ import org.fife.ui.rsyntaxtextarea.Token;
 import com.formdev.flatlaf.FlatLaf;
 import com.formdev.flatlaf.UIDefaultsLoaderAccessor;
 import com.formdev.flatlaf.ui.FlatUIUtils;
+import com.formdev.flatlaf.util.ColorFunctions;
 import com.formdev.flatlaf.util.HSLColor;
 import com.formdev.flatlaf.util.UIScale;
 
@@ -46,6 +47,7 @@ class FlatThemeEditorOverlay
 
 	static boolean showHSL = true;
 	static boolean showRGB;
+	static boolean showLuma;
 
 	private Font font;
 	private Font baseFont;
@@ -80,19 +82,21 @@ class FlatThemeEditorOverlay
 		}
 
 		FontMetrics fm = c.getFontMetrics( font );
+		int space = fm.stringWidth( "  " );
 		int maxTextWidth = 0;
 		if( showHSL )
-			maxTextWidth += fm.stringWidth( "HSL 360 100 100" );
+			maxTextWidth += fm.stringWidth( "HSL 360 100 100" ) + space;
 		if( showRGB )
-			maxTextWidth += fm.stringWidth( "#ffffff" );
+			maxTextWidth += fm.stringWidth( "#ffffff" ) + space;
-		if( showHSL && showRGB )
+		if( showLuma )
-			maxTextWidth += fm.stringWidth( "  " );
+			maxTextWidth += fm.stringWidth( "100" ) + space;
+		maxTextWidth = Math.max( maxTextWidth - space, 0 );
 		int textHeight = fm.getAscent() - fm.getLeading();
 
 		int width = c.getWidth();
 		int previewWidth = UIScale.scale( COLOR_PREVIEW_WIDTH );
 		int gap = UIScale.scale( 4 );
-		int textGap = (showHSL || showRGB) ? UIScale.scale( 6 ) : 0;
+		int textGap = (showHSL || showRGB || showLuma) ? UIScale.scale( 6 ) : 0;
 
 		// check whether preview is outside of clip bounds
 		if( clipBounds.x + clipBounds.width < width - previewWidth - maxTextWidth - gap - textGap )
@@ -123,7 +127,7 @@ class FlatThemeEditorOverlay
 				}
 
 				// paint text
-				if( showHSL || showRGB ) {
+				if( showHSL || showRGB || showLuma ) {
 					int textX = px - textGap - maxTextWidth;
 					if( textX > r.x + gap) {
 						String colorStr = null;
@@ -141,6 +145,14 @@ class FlatThemeEditorOverlay
 							else
 								colorStr = rgbStr;
 						}
+						if( showLuma ) {
+							String lumaStr = String.format( "%3d",
+								Math.round( ColorFunctions.luma( color ) * 100 ) );
+							if( colorStr != null )
+								colorStr += "  " + lumaStr;
+							else
+								colorStr = lumaStr;
+						}
 
 						int textWidth = fm.stringWidth( colorStr );
 						if( textWidth > maxTextWidth )

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

@@ -83,8 +83,9 @@ class FlatThemeFileEditor
 	private static final String KEY_PREVIEW = "preview";
 	private static final String KEY_LAF = "laf";
 	private static final String KEY_FONT_SIZE_INCR = "fontSizeIncr";
-	private static final String KEY_HSL_COLORS = "hslColors";
+	private static final String KEY_SHOW_HSL_COLORS = "showHslColors";
-	private static final String KEY_RGB_COLORS = "rgbColors";
+	private static final String KEY_SHOW_RGB_COLORS = "showRgbColors";
+	private static final String KEY_SHOW_COLOR_LUMA = "showColorLuma";
 
 	private File dir;
 	private Preferences state;
@@ -708,9 +709,11 @@ class FlatThemeFileEditor
 	private void colorModelChanged() {
 		FlatThemeEditorOverlay.showHSL = showHSLColorsMenuItem.isSelected();
 		FlatThemeEditorOverlay.showRGB = showRGBColorsMenuItem.isSelected();
+		FlatThemeEditorOverlay.showLuma = showColorLumaMenuItem.isSelected();
 
-		putPrefsBoolean( state, KEY_HSL_COLORS, FlatThemeEditorOverlay.showHSL, true );
+		putPrefsBoolean( state, KEY_SHOW_HSL_COLORS, FlatThemeEditorOverlay.showHSL, true );
-		putPrefsBoolean( state, KEY_RGB_COLORS, FlatThemeEditorOverlay.showRGB, false );
+		putPrefsBoolean( state, KEY_SHOW_RGB_COLORS, FlatThemeEditorOverlay.showRGB, false );
+		putPrefsBoolean( state, KEY_SHOW_COLOR_LUMA, FlatThemeEditorOverlay.showLuma, false );
 
 		repaint();
 	}
@@ -762,13 +765,15 @@ class FlatThemeFileEditor
 		directoryField.setModel( model );
 
 		// restore overlay color models
-		FlatThemeEditorOverlay.showHSL = state.getBoolean( KEY_HSL_COLORS, true );
+		FlatThemeEditorOverlay.showHSL = state.getBoolean( KEY_SHOW_HSL_COLORS, true );
-		FlatThemeEditorOverlay.showRGB = state.getBoolean( KEY_RGB_COLORS, false );
+		FlatThemeEditorOverlay.showRGB = state.getBoolean( KEY_SHOW_RGB_COLORS, false );
+		FlatThemeEditorOverlay.showLuma = state.getBoolean( KEY_SHOW_COLOR_LUMA, false );
 
 		// restore menu item selection
 		previewMenuItem.setSelected( state.getBoolean( KEY_PREVIEW, true ) );
 		showHSLColorsMenuItem.setSelected( FlatThemeEditorOverlay.showHSL );
 		showRGBColorsMenuItem.setSelected( FlatThemeEditorOverlay.showRGB );
+		showColorLumaMenuItem.setSelected( FlatThemeEditorOverlay.showLuma );
 	}
 
 	private void saveState() {
@@ -884,6 +889,7 @@ class FlatThemeFileEditor
 		resetFontSizeMenuItem = new JMenuItem();
 		showHSLColorsMenuItem = new JCheckBoxMenuItem();
 		showRGBColorsMenuItem = new JCheckBoxMenuItem();
+		showColorLumaMenuItem = new JCheckBoxMenuItem();
 		windowMenu = new JMenu();
 		activateEditorMenuItem = new JMenuItem();
 		nextEditorMenuItem = new JMenuItem();
@@ -1031,6 +1037,11 @@ class FlatThemeFileEditor
 				showRGBColorsMenuItem.setText("Show RGB colors (hex)");
 				showRGBColorsMenuItem.addActionListener(e -> colorModelChanged());
 				viewMenu.add(showRGBColorsMenuItem);
+
+				//---- showColorLumaMenuItem ----
+				showColorLumaMenuItem.setText("Show color luma");
+				showColorLumaMenuItem.addActionListener(e -> colorModelChanged());
+				viewMenu.add(showColorLumaMenuItem);
 			}
 			menuBar.add(viewMenu);
 
@@ -1140,6 +1151,7 @@ class FlatThemeFileEditor
 	private JMenuItem resetFontSizeMenuItem;
 	private JCheckBoxMenuItem showHSLColorsMenuItem;
 	private JCheckBoxMenuItem showRGBColorsMenuItem;
+	private JCheckBoxMenuItem showColorLumaMenuItem;
 	private JMenu windowMenu;
 	private JMenuItem activateEditorMenuItem;
 	private JMenuItem nextEditorMenuItem;

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

@@ -177,6 +177,11 @@ new FormModel {
 						"text": "Show RGB colors (hex)"
 						addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "colorModelChanged", false ) )
 					} )
+					add( new FormComponent( "javax.swing.JCheckBoxMenuItem" ) {
+						name: "showColorLumaMenuItem"
+						"text": "Show color luma"
+						addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "colorModelChanged", false ) )
+					} )
 				} )
 				add( new FormContainer( "javax.swing.JMenu", new FormLayoutManager( class javax.swing.JMenu ) ) {
 					name: "windowMenu"

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

@@ -51,7 +51,11 @@ public class FlatThemeTokenMaker
 		tokenMap.put( "false", Token.LITERAL_BOOLEAN );
 		tokenMap.put( "true", Token.LITERAL_BOOLEAN );
 
-		// functions
+		// general functions
+		tokenMap.put( "if", TOKEN_FUNCTION );
+		tokenMap.put( "lazy", TOKEN_FUNCTION );
+
+		// color functions
 		tokenMap.put( "rgb", TOKEN_FUNCTION );
 		tokenMap.put( "rgba", TOKEN_FUNCTION );
 		tokenMap.put( "hsl", TOKEN_FUNCTION );
@@ -71,7 +75,7 @@ public class FlatThemeTokenMaker
 		tokenMap.put( "mix", TOKEN_FUNCTION );
 		tokenMap.put( "tint", TOKEN_FUNCTION );
 		tokenMap.put( "shade", TOKEN_FUNCTION );
-		tokenMap.put( "lazy", TOKEN_FUNCTION );
+		tokenMap.put( "contrast", TOKEN_FUNCTION );
 
 		// function options
 		tokenMap.put( "relative", Token.RESERVED_WORD );

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

@@ -172,6 +172,7 @@ ComboBox.selectionBackground
 ComboBox.selectionForeground
 ComboBox.timeFactor
 ComboBoxUI
+Component.accentColor
 Component.arc
 Component.arrowType
 Component.borderColor

flatlaf-theme-editor/theme-editor-test.properties

@@ -29,6 +29,24 @@ Prop.true = true
 Prop.var = @var1
 Prop.ref = $Prop.string
 
+Prop.ifNotNull = if(#000,#0f0,#dfd)
+Prop.ifNull = if(null,#0f0,#dfd)
+Prop.ifTrue = if(true,#0f0,#dfd)
+Prop.ifFalse = if(false,#0f0,#dfd)
+Prop.ifOne = if(1,#0f0,#dfd)
+Prop.ifZero = if(0,#0f0,#dfd)
+@varTrue = true
+@varFalse = false
+@varTrueValue = #0f0
+@varFalseValue = #dfd
+Prop.ifVarTrue = if(@varTrue,@varTrueValue,@varFalseValue)
+Prop.ifVarFalse = if(@varFalse,@varTrueValue,@varFalseValue)
+Prop.ifTrueColorFunc = if(true,lighten(#f00,20%),darken(#f00,20%))
+Prop.ifFalseColorFunc = if(false,lighten(#f00,20%),darken(#f00,20%))
+Prop.ifUndefinedVar = if(@undefinedVar,#0f0,#dfd)
+Prop.ifUndefinedProp = if($undefinedProp,#0f0,#dfd)
+Prop.ifColor = lighten(if(#000,#0f0,#dfd), 10%)
+Prop.ifColorVar = lighten(if(@varTrue,@varTrueValue,@varFalseValue), 10%)
 Prop.lazy = lazy(Prop.string)
 
 Prop.colorFunc1 = rgb(12,34,56)
@@ -70,3 +88,32 @@ Prop.colorFunc42 = tint(#f0f,75%)
 Prop.colorFunc45 = shade(#f0f,25%)
 Prop.colorFunc46 = shade(#f0f)
 Prop.colorFunc47 = shade(#f0f,75%)
+
+Prop.colorFunc50 = contrast(#111,#000,#fff)
+Prop.colorFunc51 = contrast(#eee,#000,#fff)
+Prop.colorFunc52 = contrast(#111,$Prop.colorFunc1,$Prop.colorFunc3)
+Prop.colorFunc53 = contrast(#eee,$Prop.colorFunc1,$Prop.colorFunc3)
+Prop.colorFunc54 = contrast(lighten(#111,5%),$Prop.colorFunc1,$Prop.colorFunc3)
+Prop.colorFunc55 = contrast(lighten(#eee,5%),$Prop.colorFunc1,$Prop.colorFunc3)
+Prop.colorFunc56 = contrast(contrast(#222,#111,#eee),contrast(#eee,#000,#fff),contrast(#111,#000,#fff))
+
+Prop.1.selectionBackground = #2675BF
+Prop.1.selectionForeground = contrast($Prop.1.selectionBackground,#000,#fff)
+
+Prop.2.selectionBackground = #95c0e9
+Prop.2.selectionForeground = contrast($Prop.2.selectionBackground,#000,#fff)
+
+Prop.3.selectionBackground = #f00
+Prop.3.selectionForeground = contrast($Prop.3.selectionBackground,#000,#fff)
+
+Prop.4.selectionBackground = #0f0
+Prop.4.selectionForeground = contrast($Prop.4.selectionBackground,#000,#fff)
+
+Prop.5.selectionBackground = #00f
+Prop.5.selectionForeground = contrast($Prop.5.selectionBackground,#000,#fff)
+
+Prop.6.selectionBackground = #FFCC00
+Prop.6.selectionForeground = contrast($Prop.6.selectionBackground,#000,#fff)
+
+Prop.7.selectionBackground = #FF9500
+Prop.7.selectionForeground = contrast($Prop.7.selectionBackground,#000,#fff)