I got this idea while playing around with Microsoft Powerpoint. You know as you are doing a slide show if you click the B button the whole screen turns black click it again and it goes back.
Here's my Idea
What if we were given the option to click Ctrl+(some other key) for example, to make everything disappear except the background. In some cases I would like to see what the whole random backgrounds look like with out the obstructions of everything else. And if you want to go back to what you were doing then click Ctrl+(that same key) or something along those lines.