new ColorUIResource(Color.pink));
UIManager.getDefaults().put(prefix + "disabledForeground",
new ColorUIResource(Color.orange));
Font font = new FontUIResource(item.getFont().deriveFont(100f));
UIManager.getDefaults().put(prefix + "font", font);
Border border = new BorderUIResource(BorderFactory.createEmptyBorder(0, 0, 0, 0));
UIManager.getDefaults().put(prefix + "border", border);
Insets margin = new InsetsUIResource(1, 2, 3, 4);
UIManager.getDefaults().put(prefix + "margin", margin);
Icon arrow = new ImageIcon(new BufferedImage(10, 10, BufferedImage.TYPE_INT_RGB));
UIManager.getDefaults().put(prefix + "arrowIcon", arrow);