code: public Paint getScrollBarButtonBackgroundPaint(Shape s, boolean isIncrease, boolean buttonsTogether) {
          TwoColors colors = getScrollBarButtonBackgroundColors(buttonsTogether, isIncrease);
  
          return createHorizontalGradient(s, colors);
      }
docs: DOCUMENT ME!
  
  @param  s               DOCUMENT ME!
  @param  isIncrease      DOCUMENT ME!
  @param  buttonsTogether DOCUMENT ME!
  
  @return DOCUMENT ME!