code: private Shape decodeArrowPath(int width, int height) {
          return shapeGenerator.createArrowLeft(width * 0.2, height * 0.2, width * 0.6, height * 0.6);
      }
docs: Create the arrow path.
  
  @param  width  the width.
  @param  height the height.
  
  @return the arrow path.