docs: private Rectangle fixRectangle(Rectangle rectangle, int baseWidth, int baseHeight) {
  		if (this.positionBaseCentre) {
  			// 修正图片位置从背景的中心计算
  			rectangle.setLocation(//
  					rectangle.x + (int) (Math.abs(baseWidth - rectangle.width) / 2), //
  					rectangle.y + (int) (Math.abs(baseHeight - rectangle.height) / 2)//
  			);
  		}
  		return rectangle;
  	}