This method sets the high and low color-key values so that a range of colors can be made transparent.
此方法设置高低颜色键值，以便颜色范围可以成为透明的。
2
The colorkey has been highlighted for emphasis.
颜色键被突出显示以表示强调。
3
Virtual studio system is a new TV program production system which combines computer virtual reality technology with traditional studio colorkey switchover technology.