Changing the background color of a selected JToggleButton

Question

I am trying to change the color of a JToggleButton when it has been selected in a reliable, look and feel independent way.

If using the Metal L&F, t

Answer 1

JToggleButton btn = new JToggleButton(...);
btn.setUI(new MetalToggleButtonUI() {
    @Override
    protected Color getSelectColor() {
        return Color.RED;
    }
});