PNG开放源接口 The interface has been designed to be as simple and intuitive as possible. It supports plotting and reading in the RGB (red, green, blue), HSV (hue, saturation, value/brightness) and CMYK (cyan, magenta, yellow, black) colour spaces, bas

类似ADOBE的颜色选择器控件源码。可以修改RGB，或者CMYK或者HSBR。-Similar ADOBE color picker control source. Can modify the RGB or CMYK or HSBR.