support different component border colors to indicate errors, warnings or custom state (set client property JComponent.outline to error, warning or any java.awt.Color)

CHANGELOG.md

@@ -5,6 +5,9 @@ FlatLaf Change Log
 
 - Added drop shadows to popup menus, combobox popups, tooltips and internal
   frames. (issue #94)
+- Support different component border colors to indicate errors, warnings or
+  custom state (set client property `JComponent.outline` to `error`, `warning`
+  or any `java.awt.Color`).
 - Button and ToggleButton: Support round button style (set client property
   `JButton.buttonType` to `roundRect`).
 - ComboBox, Spinner and TextField: Support round border style (set client

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

@@ -103,6 +103,34 @@ public interface FlatClientProperties
 	 */
 	String MINIMUM_HEIGHT = "JComponent.minimumHeight";
 
+	/**
+	 * Specifies the outline color of the component border.
+	 * <p>
+	 * <strong>Components</strong> {@link javax.swing.JButton}, {@link javax.swing.JComboBox},
+	 * {@link javax.swing.JFormattedTextField}, {@link javax.swing.JPasswordField},
+	 * {@link javax.swing.JScrollPane}, {@link javax.swing.JSpinner},
+	 * {@link javax.swing.JTextField} and {@link javax.swing.JToggleButton}<br>
+	 * <strong>Value type</strong> {@link java.lang.String} or {@link java.awt.Color} or {@link java.awt.Color}[2]<br>
+	 * <strong>Allowed Values</strong> {@link #OUTLINE_ERROR}, {@link #OUTLINE_WARNING},
+	 * any color (type {@link java.awt.Color}) or an array of two colors (type {@link java.awt.Color}[2])
+	 * where the first color is for focused state and the second for unfocused state
+	 */
+	String OUTLINE = "JComponent.outline";
+
+	/**
+	 * Paint the component border in another color (usually reddish) to indicate an error.
+	 *
+	 * @see #OUTLINE
+	 */
+	String OUTLINE_ERROR = "error";
+
+	/**
+	 * Paint the component border in another color (usually yellowish) to indicate a warning.
+	 *
+	 * @see #OUTLINE
+	 */
+	String OUTLINE_WARNING = "warning";
+
 	/**
 	 * Paint the component with round edges.
 	 * <p>

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

@@ -467,6 +467,12 @@ public class IntelliJTheme
 		uiKeyMapping.put( "ComboBox.ArrowButton.iconColor",             "ComboBox.buttonArrowColor" );
 		uiKeyMapping.put( "ComboBox.ArrowButton.nonEditableBackground", "ComboBox.buttonBackground" );
 
+		// Component
+		uiKeyMapping.put( "Component.inactiveErrorFocusColor",   "Component.error.borderColor" );
+		uiKeyMapping.put( "Component.errorFocusColor",           "Component.error.focusedBorderColor" );
+		uiKeyMapping.put( "Component.inactiveWarningFocusColor", "Component.warning.borderColor" );
+		uiKeyMapping.put( "Component.warningFocusColor",         "Component.warning.focusedBorderColor" );
+
 		// Link
 		uiKeyMapping.put( "Link.activeForeground", "Component.linkColor" );
 

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

@@ -36,6 +36,8 @@ import javax.swing.SwingUtilities;
 import javax.swing.UIManager;
 import javax.swing.plaf.basic.BasicBorders;
 import javax.swing.text.JTextComponent;
+import com.formdev.flatlaf.FlatClientProperties;
+import com.formdev.flatlaf.util.DerivedColor;
 
 /**
  * Border for various components (e.g. {@link javax.swing.JTextField}).
@@ -54,6 +56,12 @@ import javax.swing.text.JTextComponent;
  * @uiDefault Component.disabledBorderColor	Color
  * @uiDefault Component.focusedBorderColor	Color
  *
+ * @uiDefault Component.error.borderColor			Color
+ * @uiDefault Component.error.focusedBorderColor	Color
+ * @uiDefault Component.warning.borderColor			Color
+ * @uiDefault Component.warning.focusedBorderColor	Color
+ * @uiDefault Component.custom.borderColor			Color
+ *
  * @author Karl Tauber
  */
 public class FlatBorder
@@ -66,6 +74,12 @@ public class FlatBorder
 	protected final Color disabledBorderColor = UIManager.getColor( "Component.disabledBorderColor" );
 	protected final Color focusedBorderColor = UIManager.getColor( "Component.focusedBorderColor" );
 
+	protected final Color errorBorderColor = UIManager.getColor( "Component.error.borderColor" );
+	protected final Color errorFocusedBorderColor = UIManager.getColor( "Component.error.focusedBorderColor" );
+	protected final Color warningBorderColor = UIManager.getColor( "Component.warning.borderColor" );
+	protected final Color warningFocusedBorderColor = UIManager.getColor( "Component.warning.focusedBorderColor" );
+	protected final Color customBorderColor = UIManager.getColor( "Component.custom.borderColor" );
+
 	@Override
 	public void paintBorder( Component c, Graphics g, int x, int y, int width, int height ) {
 		Graphics2D g2 = (Graphics2D) g.create();
@@ -76,22 +90,48 @@ public class FlatBorder
 			float focusWidth = isCellEditor ? 0 : scale( (float) getFocusWidth( c ) );
 			float borderWidth = scale( (float) getBorderWidth( c ) );
 			float arc = isCellEditor ? 0 : scale( (float) getArc( c ) );
+			Color outlineColor = getOutlineColor( c );
 
-			if( isFocused( c ) ) {
+			if( outlineColor != null || isFocused( c ) ) {
 				float innerFocusWidth = !(c instanceof JScrollPane) ? this.innerFocusWidth : 0;
 
-				g2.setColor( getFocusColor( c ) );
+				g2.setColor( (outlineColor != null) ? outlineColor : getFocusColor( c ) );
 				FlatUIUtils.paintComponentOuterBorder( g2, x, y, width, height, focusWidth,
 					scale( (float) getLineWidth( c ) ) + scale( innerFocusWidth ), arc );
 			}
 
-			g2.setPaint( getBorderColor( c ) );
+			g2.setPaint( (outlineColor != null) ? outlineColor : getBorderColor( c ) );
 			FlatUIUtils.paintComponentBorder( g2, x, y, width, height, focusWidth, borderWidth, arc );
 		} finally {
 			g2.dispose();
 		}
 	}
 
+	protected Color getOutlineColor( Component c ) {
+		if( !(c instanceof JComponent) )
+			return null;
+
+		Object outline = ((JComponent)c).getClientProperty( FlatClientProperties.OUTLINE );
+		if( outline instanceof String ) {
+			switch( (String) outline ) {
+				case FlatClientProperties.OUTLINE_ERROR:
+					return isFocused( c ) ? errorFocusedBorderColor : errorBorderColor;
+
+				case FlatClientProperties.OUTLINE_WARNING:
+					return isFocused( c ) ? warningFocusedBorderColor : warningBorderColor;
+			}
+		} else if( outline instanceof Color ) {
+			Color color = (Color) outline;
+			// use color functions to compute color for unfocused state
+			if( !isFocused( c ) && customBorderColor instanceof DerivedColor )
+				color = ((DerivedColor)customBorderColor).derive( color );
+			return color;
+		} else if( outline instanceof Color[] && ((Color[])outline).length >= 2 )
+			return ((Color[])outline)[isFocused( c ) ? 0 : 1];
+
+		return null;
+	}
+
 	protected Color getFocusColor( Component c ) {
 		return focusColor;
 	}

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

@@ -130,6 +130,12 @@ Component.focusColor=#3d6185
 Component.linkColor=#589df6
 Component.grayFilter=-20,-70,100
 
+Component.error.borderColor=desaturate($Component.error.focusedBorderColor,25%)
+Component.error.focusedBorderColor=#8b3c3c
+Component.warning.borderColor=darken(desaturate($Component.warning.focusedBorderColor,20%),10%)
+Component.warning.focusedBorderColor=#ac7920
+Component.custom.borderColor=desaturate(#f00,50%,relative derived)
+
 
 #---- Desktop ----
 

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

@@ -132,6 +132,12 @@ Component.focusColor=#97c3f3
 Component.linkColor=#2470B3
 Component.grayFilter=25,-25,100
 
+Component.error.borderColor=lighten(desaturate($Component.error.focusedBorderColor,20%),25%)
+Component.error.focusedBorderColor=#e53e4d
+Component.warning.borderColor=lighten(saturate($Component.warning.focusedBorderColor,25%),20%)
+Component.warning.focusedBorderColor=#e2a53a
+Component.custom.borderColor=lighten(desaturate(#f00,20%,derived),25%,derived)
+
 
 #---- Desktop ----
 

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

@@ -114,6 +114,14 @@ class BasicComponentsPanel
 		JScrollPane scrollPane12 = new JScrollPane();
 		JTextPane textPane4 = new JTextPane();
 		JTextPane textPane5 = new JTextPane();
+		JLabel label3 = new JLabel();
+		JTextField textField5 = new JTextField();
+		JComboBox comboBox7 = new JComboBox();
+		JSpinner spinner3 = new JSpinner();
+		JLabel label4 = new JLabel();
+		JTextField textField7 = new JTextField();
+		JComboBox comboBox8 = new JComboBox();
+		JSpinner spinner4 = new JSpinner();
 		JPopupMenu popupMenu1 = new JPopupMenu();
 		JMenuItem cutMenuItem = new JMenuItem();
 		JMenuItem copyMenuItem = new JMenuItem();
@@ -141,6 +149,8 @@ class BasicComponentsPanel
 			"[]" +
 			"[]" +
 			"[]" +
+			"[]para" +
+			"[]" +
 			"[]"));
 
 		//---- labelLabel ----
@@ -596,6 +606,38 @@ class BasicComponentsPanel
 		textPane5.setText("no scroll pane");
 		add(textPane5, "cell 5 11,growx");
 
+		//---- label3 ----
+		label3.setText("Error:");
+		add(label3, "cell 0 12");
+
+		//---- textField5 ----
+		textField5.putClientProperty("JComponent.outline", "error");
+		add(textField5, "cell 1 12,growx");
+
+		//---- comboBox7 ----
+		comboBox7.putClientProperty("JComponent.outline", "error");
+		add(comboBox7, "cell 2 12,growx");
+
+		//---- spinner3 ----
+		spinner3.putClientProperty("JComponent.outline", "error");
+		add(spinner3, "cell 3 12,growx");
+
+		//---- label4 ----
+		label4.setText("Warning:");
+		add(label4, "cell 0 13");
+
+		//---- textField7 ----
+		textField7.putClientProperty("JComponent.outline", "warning");
+		add(textField7, "cell 1 13,growx");
+
+		//---- comboBox8 ----
+		comboBox8.putClientProperty("JComponent.outline", "warning");
+		add(comboBox8, "cell 2 13,growx");
+
+		//---- spinner4 ----
+		spinner4.putClientProperty("JComponent.outline", "warning");
+		add(spinner4, "cell 3 13,growx");
+
 		//======== popupMenu1 ========
 		{
 

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

@@ -9,7 +9,7 @@ new FormModel {
 		add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class net.miginfocom.swing.MigLayout ) {
 			"$layoutConstraints": "hidemode 3"
 			"$columnConstraints": "[][][][][][]"
-			"$rowConstraints": "[][][][][][][][][][][][]"
+			"$rowConstraints": "[][][][][][][][][][][][]para[][]"
 		} ) {
 			name: "this"
 			add( new FormComponent( "javax.swing.JLabel" ) {
@@ -591,9 +591,57 @@ new FormModel {
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
 				"value": "cell 5 11,growx"
 			} )
+			add( new FormComponent( "javax.swing.JLabel" ) {
+				name: "label3"
+				"text": "Error:"
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 0 12"
+			} )
+			add( new FormComponent( "javax.swing.JTextField" ) {
+				name: "textField5"
+				"$client.JComponent.outline": "error"
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 1 12,growx"
+			} )
+			add( new FormComponent( "javax.swing.JComboBox" ) {
+				name: "comboBox7"
+				"$client.JComponent.outline": "error"
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 2 12,growx"
+			} )
+			add( new FormComponent( "javax.swing.JSpinner" ) {
+				name: "spinner3"
+				"$client.JComponent.outline": "error"
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 3 12,growx"
+			} )
+			add( new FormComponent( "javax.swing.JLabel" ) {
+				name: "label4"
+				"text": "Warning:"
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 0 13"
+			} )
+			add( new FormComponent( "javax.swing.JTextField" ) {
+				name: "textField7"
+				"$client.JComponent.outline": "warning"
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 1 13,growx"
+			} )
+			add( new FormComponent( "javax.swing.JComboBox" ) {
+				name: "comboBox8"
+				"$client.JComponent.outline": "warning"
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 2 13,growx"
+			} )
+			add( new FormComponent( "javax.swing.JSpinner" ) {
+				name: "spinner4"
+				"$client.JComponent.outline": "warning"
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 3 13,growx"
+			} )
 		}, new FormLayoutConstraints( null ) {
 			"location": new java.awt.Point( 0, 0 )
-			"size": new java.awt.Dimension( 790, 440 )
+			"size": new java.awt.Dimension( 920, 440 )
 		} )
 		add( new FormContainer( "javax.swing.JPopupMenu", new FormLayoutManager( class javax.swing.JPopupMenu ) ) {
 			name: "popupMenu1"

flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/FlatComponentsTest.java

@@ -84,6 +84,26 @@ public class FlatComponentsTest
 		}
 	}
 
+	private void outlineChanged() {
+		FlatTestFrame frame = (FlatTestFrame) SwingUtilities.getAncestorOfClass( FlatTestFrame.class, this );
+		if( frame == null )
+			return;
+
+		Object outline = errorOutlineRadioButton.isSelected() ? "error"
+			: warningOutlineRadioButton.isSelected() ? "warning"
+			: magentaOutlineRadioButton.isSelected() ? Color.magenta
+			: magentaCyanOutlineRadioButton.isSelected() ? new Color[] { Color.magenta, Color.cyan }
+			: null;
+
+		frame.updateComponentsRecur( this, (c, type) -> {
+			if( c instanceof JComponent )
+				((JComponent)c).putClientProperty( FlatClientProperties.OUTLINE, outline );
+		} );
+
+		frame.repaint();
+		textField1.requestFocusInWindow();
+	}
+
 	private void initComponents() {
 		// JFormDesigner - Component initialization - DO NOT MODIFY  //GEN-BEGIN:initComponents
 		JLabel labelLabel = new JLabel();
@@ -146,7 +166,7 @@ public class FlatComponentsTest
 		JComboBox<String> comboBox7 = new JComboBox<>();
 		JSpinner spinner3 = new JSpinner();
 		JLabel textFieldLabel = new JLabel();
-		JTextField textField1 = new JTextField();
+		textField1 = new JTextField();
 		JTextField textField2 = new JTextField();
 		JTextField textField3 = new JTextField();
 		JTextField textField4 = new JTextField();
@@ -215,6 +235,12 @@ public class FlatComponentsTest
 		JButton button10 = new JButton();
 		JButton button11 = new JButton();
 		JToggleButton toggleButton7 = new JToggleButton();
+		JPanel panel4 = new JPanel();
+		noOutlineRadioButton = new JRadioButton();
+		errorOutlineRadioButton = new JRadioButton();
+		warningOutlineRadioButton = new JRadioButton();
+		magentaOutlineRadioButton = new JRadioButton();
+		magentaCyanOutlineRadioButton = new JRadioButton();
 		JScrollPane scrollPane15 = new JScrollPane();
 		JPanel panel3 = new JPanel();
 		JButton button21 = new JButton();
@@ -1013,6 +1039,38 @@ public class FlatComponentsTest
 		}
 		add(toolBar2, "cell 4 13 1 6,growy");
 
+		//======== panel4 ========
+		{
+			panel4.setLayout(new BoxLayout(panel4, BoxLayout.Y_AXIS));
+
+			//---- noOutlineRadioButton ----
+			noOutlineRadioButton.setText("no outline");
+			noOutlineRadioButton.setSelected(true);
+			noOutlineRadioButton.addActionListener(e -> outlineChanged());
+			panel4.add(noOutlineRadioButton);
+
+			//---- errorOutlineRadioButton ----
+			errorOutlineRadioButton.setText("error");
+			errorOutlineRadioButton.addActionListener(e -> outlineChanged());
+			panel4.add(errorOutlineRadioButton);
+
+			//---- warningOutlineRadioButton ----
+			warningOutlineRadioButton.setText("warning");
+			warningOutlineRadioButton.addActionListener(e -> outlineChanged());
+			panel4.add(warningOutlineRadioButton);
+
+			//---- magentaOutlineRadioButton ----
+			magentaOutlineRadioButton.setText("magenta");
+			magentaOutlineRadioButton.addActionListener(e -> outlineChanged());
+			panel4.add(magentaOutlineRadioButton);
+
+			//---- magentaCyanOutlineRadioButton ----
+			magentaCyanOutlineRadioButton.setText("magenta / cyan");
+			magentaCyanOutlineRadioButton.addActionListener(e -> outlineChanged());
+			panel4.add(magentaCyanOutlineRadioButton);
+		}
+		add(panel4, "cell 5 13");
+
 		//======== scrollPane15 ========
 		{
 			scrollPane15.setBorder(BorderFactory.createEmptyBorder());
@@ -1240,6 +1298,14 @@ public class FlatComponentsTest
 			toolBar4.add(toggleButton26);
 		}
 		add(toolBar4, "cell 3 23 3 1");
+
+		//---- buttonGroup1 ----
+		ButtonGroup buttonGroup1 = new ButtonGroup();
+		buttonGroup1.add(noOutlineRadioButton);
+		buttonGroup1.add(errorOutlineRadioButton);
+		buttonGroup1.add(warningOutlineRadioButton);
+		buttonGroup1.add(magentaOutlineRadioButton);
+		buttonGroup1.add(magentaCyanOutlineRadioButton);
 		// JFormDesigner - End of component initialization  //GEN-END:initComponents
 
 //		BasicComboBoxRenderer customRenderer = new BasicComboBoxRenderer();
@@ -1252,8 +1318,14 @@ public class FlatComponentsTest
 	private JComboBox<String> buttonTypeComboBox;
 	private JCheckBox contentAreaFilledCheckBox;
 	private JCheckBox roundRectCheckBox;
+	private JTextField textField1;
 	private JProgressBar progressBar3;
 	private JProgressBar progressBar4;
+	private JRadioButton noOutlineRadioButton;
+	private JRadioButton errorOutlineRadioButton;
+	private JRadioButton warningOutlineRadioButton;
+	private JRadioButton magentaOutlineRadioButton;
+	private JRadioButton magentaCyanOutlineRadioButton;
 	private JSlider slider3;
 	private JProgressBar progressBar1;
 	private JProgressBar progressBar2;

flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/FlatComponentsTest.jfd

@@ -514,6 +514,9 @@ new FormModel {
 			add( new FormComponent( "javax.swing.JTextField" ) {
 				name: "textField1"
 				"text": "editable"
+				auxiliary() {
+					"JavaCodeGenerator.variableLocal": false
+				}
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
 				"value": "cell 1 7,growx"
 			} )
@@ -955,6 +958,59 @@ new FormModel {
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
 				"value": "cell 4 13 1 6,growy"
 			} )
+			add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class javax.swing.BoxLayout ) {
+				"axis": 1
+			} ) {
+				name: "panel4"
+				add( new FormComponent( "javax.swing.JRadioButton" ) {
+					name: "noOutlineRadioButton"
+					"text": "no outline"
+					"$buttonGroup": new FormReference( "buttonGroup1" )
+					"selected": true
+					auxiliary() {
+						"JavaCodeGenerator.variableLocal": false
+					}
+					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "outlineChanged", false ) )
+				} )
+				add( new FormComponent( "javax.swing.JRadioButton" ) {
+					name: "errorOutlineRadioButton"
+					"text": "error"
+					"$buttonGroup": new FormReference( "buttonGroup1" )
+					auxiliary() {
+						"JavaCodeGenerator.variableLocal": false
+					}
+					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "outlineChanged", false ) )
+				} )
+				add( new FormComponent( "javax.swing.JRadioButton" ) {
+					name: "warningOutlineRadioButton"
+					"text": "warning"
+					"$buttonGroup": new FormReference( "buttonGroup1" )
+					auxiliary() {
+						"JavaCodeGenerator.variableLocal": false
+					}
+					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "outlineChanged", false ) )
+				} )
+				add( new FormComponent( "javax.swing.JRadioButton" ) {
+					name: "magentaOutlineRadioButton"
+					"text": "magenta"
+					"$buttonGroup": &FormReference0 new FormReference( "buttonGroup1" )
+					auxiliary() {
+						"JavaCodeGenerator.variableLocal": false
+					}
+					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "outlineChanged", false ) )
+				} )
+				add( new FormComponent( "javax.swing.JRadioButton" ) {
+					name: "magentaCyanOutlineRadioButton"
+					"text": "magenta / cyan"
+					"$buttonGroup": #FormReference0
+					auxiliary() {
+						"JavaCodeGenerator.variableLocal": false
+					}
+					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "outlineChanged", false ) )
+				} )
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 5 13"
+			} )
 			add( new FormContainer( "javax.swing.JScrollPane", new FormLayoutManager( class javax.swing.JScrollPane ) ) {
 				name: "scrollPane15"
 				"border": new javax.swing.border.EmptyBorder( 0, 0, 0, 0 )
@@ -1247,5 +1303,10 @@ new FormModel {
 			"location": new java.awt.Point( 0, 0 )
 			"size": new java.awt.Dimension( 1135, 800 )
 		} )
+		add( new FormNonVisual( "javax.swing.ButtonGroup" ) {
+			name: "buttonGroup1"
+		}, new FormLayoutConstraints( null ) {
+			"location": new java.awt.Point( 0, 810 )
+		} )
 	}
 }

flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/FlatTestFrame.java

@@ -440,7 +440,7 @@ public class FlatTestFrame
 		sizeVariantComboBox.setVisible( visible );
 	}
 
-	private void updateComponentsRecur( Container container, BiConsumer<Component, String> action ) {
+	void updateComponentsRecur( Container container, BiConsumer<Component, String> action ) {
 		for( Component c : container.getComponents() ) {
 			if( c instanceof JPanel || c instanceof JDesktopPane ) {
 				updateComponentsRecur( (Container) c, action );

flatlaf-testing/src/main/resources/com/formdev/flatlaf/testing/uidefaults/FlatDarkLaf_1.8.0_202-mac.txt

@@ -202,7 +202,10 @@ ComboBoxUI                     com.formdev.flatlaf.ui.FlatComboBoxUI
 Component.arc                  5
 Component.arrowType            chevron
 Component.borderColor          #646464    javax.swing.plaf.ColorUIResource [UI]
+Component.custom.borderColor   #bf4040    com.formdev.flatlaf.util.DerivedColor [UI]    desaturate(50% relative)
 Component.disabledBorderColor  #646464    javax.swing.plaf.ColorUIResource [UI]
+Component.error.borderColor    #725555    javax.swing.plaf.ColorUIResource [UI]
+Component.error.focusedBorderColor #8b3c3c    javax.swing.plaf.ColorUIResource [UI]
 Component.focusColor           #3d6185    javax.swing.plaf.ColorUIResource [UI]
 Component.focusWidth           0
 Component.focusedBorderColor   #466d94    javax.swing.plaf.ColorUIResource [UI]
@@ -211,6 +214,8 @@ Component.hideMnemonics        true
 Component.innerFocusWidth      0.5
 Component.linkColor            #589df6    javax.swing.plaf.ColorUIResource [UI]
 Component.minimumWidth         64
+Component.warning.borderColor  #725627    javax.swing.plaf.ColorUIResource [UI]
+Component.warning.focusedBorderColor #ac7920    javax.swing.plaf.ColorUIResource [UI]
 
 
 #---- DatePicker ----

flatlaf-testing/src/main/resources/com/formdev/flatlaf/testing/uidefaults/FlatDarkLaf_1.8.0_202.txt

@@ -201,7 +201,10 @@ ComboBoxUI                     com.formdev.flatlaf.ui.FlatComboBoxUI
 Component.arc                  5
 Component.arrowType            chevron
 Component.borderColor          #646464    javax.swing.plaf.ColorUIResource [UI]
+Component.custom.borderColor   #bf4040    com.formdev.flatlaf.util.DerivedColor [UI]    desaturate(50% relative)
 Component.disabledBorderColor  #646464    javax.swing.plaf.ColorUIResource [UI]
+Component.error.borderColor    #725555    javax.swing.plaf.ColorUIResource [UI]
+Component.error.focusedBorderColor #8b3c3c    javax.swing.plaf.ColorUIResource [UI]
 Component.focusColor           #3d6185    javax.swing.plaf.ColorUIResource [UI]
 Component.focusWidth           0
 Component.focusedBorderColor   #466d94    javax.swing.plaf.ColorUIResource [UI]
@@ -210,6 +213,8 @@ Component.hideMnemonics        true
 Component.innerFocusWidth      0.5
 Component.linkColor            #589df6    javax.swing.plaf.ColorUIResource [UI]
 Component.minimumWidth         64
+Component.warning.borderColor  #725627    javax.swing.plaf.ColorUIResource [UI]
+Component.warning.focusedBorderColor #ac7920    javax.swing.plaf.ColorUIResource [UI]
 
 
 #---- DatePicker ----

flatlaf-testing/src/main/resources/com/formdev/flatlaf/testing/uidefaults/FlatLightLaf_1.8.0_202-mac.txt

@@ -203,7 +203,10 @@ ComboBoxUI                     com.formdev.flatlaf.ui.FlatComboBoxUI
 Component.arc                  5
 Component.arrowType            chevron
 Component.borderColor          #c4c4c4    javax.swing.plaf.ColorUIResource [UI]
+Component.custom.borderColor   #f38d8d    com.formdev.flatlaf.util.DerivedColor [UI]    desaturate(20%) lighten(25%)
 Component.disabledBorderColor  #cfcfcf    javax.swing.plaf.ColorUIResource [UI]
+Component.error.borderColor    #ebb8bc    javax.swing.plaf.ColorUIResource [UI]
+Component.error.focusedBorderColor #e53e4d    javax.swing.plaf.ColorUIResource [UI]
 Component.focusColor           #97c3f3    javax.swing.plaf.ColorUIResource [UI]
 Component.focusWidth           0
 Component.focusedBorderColor   #87afda    javax.swing.plaf.ColorUIResource [UI]
@@ -212,6 +215,8 @@ Component.hideMnemonics        true
 Component.innerFocusWidth      0.5
 Component.linkColor            #2470b3    javax.swing.plaf.ColorUIResource [UI]
 Component.minimumWidth         64
+Component.warning.borderColor  #fed284    javax.swing.plaf.ColorUIResource [UI]
+Component.warning.focusedBorderColor #e2a53a    javax.swing.plaf.ColorUIResource [UI]
 
 
 #---- DatePicker ----

flatlaf-testing/src/main/resources/com/formdev/flatlaf/testing/uidefaults/FlatLightLaf_1.8.0_202.txt

@@ -202,7 +202,10 @@ ComboBoxUI                     com.formdev.flatlaf.ui.FlatComboBoxUI
 Component.arc                  5
 Component.arrowType            chevron
 Component.borderColor          #c4c4c4    javax.swing.plaf.ColorUIResource [UI]
+Component.custom.borderColor   #f38d8d    com.formdev.flatlaf.util.DerivedColor [UI]    desaturate(20%) lighten(25%)
 Component.disabledBorderColor  #cfcfcf    javax.swing.plaf.ColorUIResource [UI]
+Component.error.borderColor    #ebb8bc    javax.swing.plaf.ColorUIResource [UI]
+Component.error.focusedBorderColor #e53e4d    javax.swing.plaf.ColorUIResource [UI]
 Component.focusColor           #97c3f3    javax.swing.plaf.ColorUIResource [UI]
 Component.focusWidth           0
 Component.focusedBorderColor   #87afda    javax.swing.plaf.ColorUIResource [UI]
@@ -211,6 +214,8 @@ Component.hideMnemonics        true
 Component.innerFocusWidth      0.5
 Component.linkColor            #2470b3    javax.swing.plaf.ColorUIResource [UI]
 Component.minimumWidth         64
+Component.warning.borderColor  #fed284    javax.swing.plaf.ColorUIResource [UI]
+Component.warning.focusedBorderColor #e2a53a    javax.swing.plaf.ColorUIResource [UI]
 
 
 #---- DatePicker ----