Java tutorial
import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JRootPane; import javax.swing.SwingUtilities; import javax.swing.UIManager; import javax.swing.plaf.ColorUIResource; import javax.swing.plaf.metal.DefaultMetalTheme; import javax.swing.plaf.metal.MetalLookAndFeel; public class Main { public static void main_helper(String args[]) { JFrame f = new JFrame(); f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); f.setSize(300, 300); f.setUndecorated(true); f.getRootPane().setWindowDecorationStyle(JRootPane.FRAME); JPanel panel = new JPanel(); panel.setBackground(java.awt.Color.white); f.setContentPane(panel); MetalLookAndFeel.setCurrentTheme(new MyDefaultMetalTheme()); try { UIManager.setLookAndFeel(new MetalLookAndFeel()); } catch (Exception e) { e.printStackTrace(); } SwingUtilities.updateComponentTreeUI(f); f.setVisible(true); } public static void main(final String args[]) { main_helper(args); } } class MyDefaultMetalTheme extends DefaultMetalTheme { // inactive title color public ColorUIResource getWindowTitleInactiveBackground() { return new ColorUIResource(java.awt.Color.orange); } // active title color public ColorUIResource getWindowTitleBackground() { return new ColorUIResource(java.awt.Color.orange); } // start ActiveBumps public ColorUIResource getPrimaryControlHighlight() { return new ColorUIResource(java.awt.Color.orange); } public ColorUIResource getPrimaryControlDarkShadow() { return new ColorUIResource(java.awt.Color.orange); } public ColorUIResource getPrimaryControl() { return new ColorUIResource(java.awt.Color.orange); } // end ActiveBumps // start inActiveBumps public ColorUIResource getControlHighlight() { return new ColorUIResource(java.awt.Color.orange); } public ColorUIResource getControlDarkShadow() { return new ColorUIResource(java.awt.Color.orange); } public ColorUIResource getControl() { return new ColorUIResource(java.awt.Color.orange); } // end inActiveBumps }