This is a screen saver for Windows. It generates a static image of a fractal. You can configure the displayed image click Configure button. You can zoom in parts of the fractal and you can choose from three colour schemes. Blues is a colour scheme which uses blue colours, volcano uses yellow and red. The third one is a sort of experiment. By the way, the fractal used is a sort of deformation of a standard Julia fractal. The picture is intentionally static-this screen saver saves your CPU as well. Once the picture is displayed the computer doesn't have think about this screen saver at all. Because quite often you may leave your computer to do some work, Ecrans de veille shouldn't waste any computer power.