How to use

getDefaults

method

in

javax.swing.plaf.nimbus.NimbusLookAndFeel

@Override
public UIDefaults getDefaults()
{
 UIDefaults defaults = super.getDefaults();
 GraphicsDevice gd = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
 if(gd.getDisplayMode().getWidth() > 2000)
 {
  defaults.put("defaultFont", new Font(Font.SANS_SERIF, Font.PLAIN, 18));
 }
 return defaults;
}

protected static Dimension arcs = new Dimension(10, 10);
public TabbedPaneTheme(NimbusBaseUI nimbusUI) {
 UIDefaults d = nimbusUI.getDefaults();