private void configureButton(JButton button){
  Font buttonFont=(Font)DefaultLookup.get(optionPane,this,"OptionPane.buttonFont");
  if (buttonFont != null) {
    button.setFont(buttonFont);
  }
}

private void configureButton ( JButton button ) { Font buttonFont = ( Font ) DefaultLookup . get ( optionPane , this , "OptionPane.buttonFont" ) ; if ( buttonFont != null ) { button . setFont ( buttonFont ) ; } }
configures any necessary colors / fonts for the specified button used representing the button portion of the optionpane .
