public static ComponentUI createUI(JComponent b) 
{
        return new SynthRadioButtonUI();
}

 protected String getPropertyPrefix() 
{
        return "RadioButton.";
}

 protected Icon getSizingIcon(AbstractButton b) 
{
        return getIcon(b);
}

Returns the Icon used in calculating the pref/min/max size.

  void paintBackground(SynthContext context,
    Graphics g,
    JComponent c) 
{
        context.getPainter().paintRadioButtonBackground(context, g, 0, 0,
                                                c.getWidth(), c.getHeight());
}

 public  void paintBorder(SynthContext context,
    Graphics g,
    int x,
    int y,
    int w,
    int h) 
{
        context.getPainter().paintRadioButtonBorder(context, g, x, y, w, h);
}