With a combination of one and two finger swipes you can quickly see any color the device is capable of displaying. Some features: Single finger swipe controls Hue (horizo...展开

With a combination of one and two finger swipes you can quickly see any color the device is capable of displaying. Some features: Single finger swipe controls Hue (horizontal) and Saturation (vertical) Double finger swipe controls Hue (horizontal) and Brightness (vertical) Triple finger swi…收起

This app has been updated by Apple to use the latest Apple signing certificate.