ColorCompass is designed to help colorblind people in all their key color decisions. Currently, the following activities are available: fast and accurate color naming with simple terms : blue, violet, red, green. Led filter to identify whether a led indicator is charging (reddish) or full (greenish). Banana filter to identify ripe, underripe or unripe bananas, red filter, to filter out red color in a scene. You simply need to select the right activity and point your camera at the color or the object you need to work with. The torch light can be turned on when the luminosity is too low.