Windows allows you to create multiple desktops, so users can quickly switch between a work environment, a personal environment, and a gaming-optimized desktop. This often results in overlaps: a word processor, for example, is usually needed for both personal and work correspondence.
If the program is running in full screen mode, it is often difficult to know which desktop you are currently on. The easiest method is to assign a different background to each desktop. However, this must be a background image; Windows applies solid colors uniformly across all desktops.
