用它画很多规定格式、自定义格式的几何图形，不规则图形等，它还带滤镜功能，虽然滤镜功能不多，但作为画图程序已经很难得了-Use it to draw a lot of the prescribed format, custom format, geometry, irregular graphics, it also functions with a filter, although the filter function much, but as the drawing process has been difficult to got