code: private void paintCornerEnabled(Graphics2D g, int width, int height) {
          Shape s = decodeCornerBorder(width, height);
  
  //        g.setPaint(cornerBorder);
  //        g.fill(s);
          s = decodeCornerInside(width, height);
          g.setPaint(decodeCornerGradient(s));
          g.fill(s);
      }
docs: DOCUMENT ME!
  
  @param g      DOCUMENT ME!
  @param width  DOCUMENT ME!
  @param height DOCUMENT ME!