Rainbow Wallpaper Manipulator & Screen Saver - Version 4.21 Wallpaper Manipulator and Screen Saver. Main features: use of standard JPEG files, wallpaper archive, lots of image positioning options (like Fit to Screen, Resize, Position, ...) for wallpaper and screen saver, screen saver transitions, picture titles, easy integration with other software/hardware like web cams to retrieve wallpapers, by using "Wallpapers Folder", etc.