NOC-do gymnastics makes the screen black: Which sounds itself absurdly is perfectly for night owls, which sit and work gladly in the dark at their computer. With one click inverts the practical Freeware for the Mac the picture and provides so for a picture, when it also darkening still pleasantly is to be read. White background in text processing and other Office applications can dazzle unpleasantly, if the eye got accustomed to the darkness in an area. Who works gladly without additional light, the feeling becomes. Either the eyes water, or one sees nothing more, if one looks for something off the computer screen. For this admittedly quite pointed target group is NOC-do gymnastics perfect tools.

After the installation it keeps itself discrete in the background. By click on the symbol in the menu border or by combination of keys lets it call and inverts themselves the screen. For pictures or videos that is natural nonsense, for writing or reads longer texts however ideally. They will see: White writing on dark reason can be a genuine relief for the eyes.