code: private void paintArrowButton(Graphics2D g, double x, double y) {
          Shape s = shapeGenerator.createArrowLeft(x, y, 4, 6);
  
          g.setPaint(getScrollBarButtonArrowPaint());
          g.fill(s);
      }
docs: DOCUMENT ME!
  
  @param g DOCUMENT ME!
  @param x DOCUMENT ME!
  @param y DOCUMENT ME!