Possible to change Program Window background to black?
I am working with scanned slides in Premiere CS6. Sometimes I want to leave the ragged edges (in the photo, at the bottom edge), but I can't judge how it will look when projected because the background in Premiere is grey.

What I see in the horizontal direction, especially if the slide is 3:2 aspect, is the slide in the centre, the black background of the 16:9 video area, and then the grey of the Program Window. Not at all close to what will be projected.
Is it possible to alter the background of the Program Window to black?
