code: public Paint getFrameInnerHighlightPaint(Shape s) {
          switch (state) {
  
          case BACKGROUND_ENABLED:
              return frameInnerHighlightInactive;
  
          case BACKGROUND_ENABLED_WINDOWFOCUSED:
              return frameInnerHighlightActive;
          }
  
          return null;
      }
docs: Get the paint to paint the inner highlight with.
  
  @param  s the highlight shape.
  
  @return the paint.