So, the idea here is to change my wallpapers based on the application I am using at the time. Specifically, I use Adobe CC, and remembering the more esoteric shortcuts is pretty tough. I would like to change the background to reflect the app that has focus. On one monitor I would use a wallpaper of the shortcut list and the other just a nice background image, color-coordinated with the app in use.

As a non-design use of such a function, wallpaper could be changed to reflect some other important condition, as a warning for instance ---"The application you are using must be logged out of when not at your computer."

I can't seem to see how this might be achieved, but I am very open to the idea that I am wrong. If there is no way though, I think this would make a great addition to DF.