Change background and text color of JMenuBar and JMenu objects inside it

Question

How can I set custom background color for JMenuBar and JMenu objects inside it? I tried .setBackgroundColor and it does not work!

Answer 1

public void run() {

     UIManager.put("MenuBar.background", new java.awt.Color(255, 245, 157));
     UIManager.put("MenuBar.opaque", true);                
     UIManager.put("Menu.background", new java.awt.Color(255, 245, 157));
     UIManager.put("Menu.opaque", true);
     UIManager.put("MenuItem.background",new java.awt.Color(255, 245, 157));
     UIManager.put("MenuItem.opaque", true);
     new MenuPrincipal().setVisible(true);

}

The menubar does not change color, but the rest do (menu and menuitem)