Theme Editor:

- support lazy values and icon colors in overlay color preview
- support icon colors in preview
- support icon colors in reference auto-completion
- support changing preview theme when editing FlatLaf.properties via adding `@baseTheme = dark|darcula|intellij`

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

@@ -24,9 +24,11 @@ import java.awt.Point;
 import java.awt.Rectangle;
 import javax.swing.JComponent;
 import javax.swing.JLayer;
+import javax.swing.UIDefaults.LazyValue;
 import javax.swing.plaf.LayerUI;
 import javax.swing.text.BadLocationException;
 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.HSLColor;
@@ -157,6 +159,20 @@ class FlatThemeEditorOverlay
 
 	private Color getColorInLine( FlatSyntaxTextArea textArea, int line ) {
 		Object value = textArea.propertiesSupport.getParsedValueAtLine( line );
+
+		// resolve lazy value
+		if( value instanceof LazyValue ) {
+			Object[] pValue = new Object[] { value };
+			FlatLaf.runWithUIDefaultsGetter( key -> {
+				return (key instanceof String)
+					? textArea.propertiesSupport.getParsedProperty( (String) key )
+					: null;
+			}, () -> {
+				pValue[0] = ((LazyValue)pValue[0]).createValue( null );
+			} );
+			value = pValue[0];
+		}
+
 		if( value instanceof Color )
 			return (Color) value;
 

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

@@ -29,6 +29,7 @@ import java.util.Properties;
 import java.util.Set;
 import com.formdev.flatlaf.FlatDarculaLaf;
 import com.formdev.flatlaf.FlatDarkLaf;
+import com.formdev.flatlaf.FlatIconColors;
 import com.formdev.flatlaf.FlatIntelliJLaf;
 import com.formdev.flatlaf.FlatLaf;
 import com.formdev.flatlaf.FlatLightLaf;
@@ -111,10 +112,6 @@ class FlatThemePropertiesBaseManager
 
 		// core themes
 		switch( name ) {
-			case "FlatLaf":
-				result.add( "FlatLightLaf" );
-				break;
-
 			case "FlatLightLaf":
 			case "FlatDarkLaf":
 				result.add( "FlatLaf" );
@@ -160,6 +157,10 @@ class FlatThemePropertiesBaseManager
 					result.add( "FlatLaf" );
 					break;
 			}
+
+			// exclude base properties if editing base properties
+			if( name.equals( "FlatLaf" ) )
+				result.remove( "FlatLaf" );
 		}
 
 		return result;
@@ -173,6 +174,7 @@ class FlatThemePropertiesBaseManager
 		private final String name;
 		private final FlatThemePropertiesSupport propertiesSupport;
 		private final boolean isCoreTheme;
+		private final String coreBaseTheme;
 
 		private List<String> baseFiles;
 		private String lastBaseTheme;
@@ -181,10 +183,22 @@ class FlatThemePropertiesBaseManager
 			this.name = name;
 			this.propertiesSupport = propertiesSupport;
 			this.isCoreTheme = isCoreTheme;
+
+			switch( name ) {
+				case "FlatLightLaf":	coreBaseTheme = "light"; break;
+				case "FlatDarkLaf":		coreBaseTheme = "dark"; break;
+				case "FlatIntelliJLaf":	coreBaseTheme = "intellij"; break;
+				case "FlatDarculaLaf":	coreBaseTheme = "darcula"; break;
+				default:				coreBaseTheme = null; break;
+			}
 		}
 
 		@Override
 		public String getProperty( String key, String baseTheme ) {
+			// override base theme for core themes
+			if( coreBaseTheme != null )
+				baseTheme = coreBaseTheme;
+
 			updateBaseFiles( baseTheme );
 
 			// search in opened editors
@@ -209,6 +223,15 @@ class FlatThemePropertiesBaseManager
 				}
 			}
 
+			// search in icon colors
+			if( key.startsWith( "Actions." ) || key.startsWith( "Objects." ) ) {
+				boolean dark = FlatThemePropertiesSupport.isDark( baseTheme );
+				for( FlatIconColors c : FlatIconColors.values() ) {
+					if( c.key.equals( key ) && (c.light == !dark || c.dark == dark) )
+						return String.format( "#%06x", c.rgb );
+				}
+			}
+
 			return null;
 		}
 
@@ -236,6 +259,10 @@ class FlatThemePropertiesBaseManager
 
 		@Override
 		public void addAllKeys( Set<String> allKeys, String baseTheme ) {
+			// override base theme for core themes
+			if( coreBaseTheme != null )
+				baseTheme = coreBaseTheme;
+
 			updateBaseFiles( baseTheme );
 
 			// search in opened editors
@@ -257,6 +284,10 @@ class FlatThemePropertiesBaseManager
 				for( String baseFile : baseFiles )
 					copyKeys( coreThemes.get( baseFile ), allKeys );
 			}
+
+			// icon colors
+			for( FlatIconColors c : FlatIconColors.values() )
+				allKeys.add( c.key );
 		}
 
 		private void copyKeys( Properties properties, Set<String> allKeys ) {

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

@@ -207,6 +207,10 @@ class FlatThemePropertiesSupport
 		return allKeysCache;
 	}
 
+	static boolean isDark( String baseTheme ) {
+		return "dark".equals( baseTheme ) || "darcula".equals( baseTheme );
+	}
+
 	private String getBaseTheme() {
 		if( baseTheme == null )
 			baseTheme = getProperties().getProperty( "@baseTheme", "light" );