question: private void hilite ( Graphics graphics , JComponent button ) { graphics . setColor ( style . getHighLightColor ( ) ) ; Insets insets = button . getInsets ( ) ; int width = button . getWidth ( ) - insets . right - insets . left - 1 ; int height = button . getHeight ( ) - insets . top - insets . bottom - 1 ; graphics . drawRect ( insets . left , insets . top , width , height ) ; }
target:  Draws the mouse focus highlighting.