I have an image open in Photoshop, rulers visible on 2 sides. I pulled out the bottom right hand side (as I look at the screen) to have the image float in the background. Normally my background is grey, but suddenly it's turned to blue. Horrid! Distracting! No idea how this happened - what I unknowingly hit - but neither can I work out how to return to grey. Any help out there?
That works. Thanks so much. I obviously hit it unknowingly. Spectacular to get a simple solution. cheers.