Art board background colour

[Bridges Art]

Please add an art board background colour change option. So when changing the format of a clip it's easy to see if the image fills the space. When you have a light coloured clip with a black background it’s impossible to tell where the format of the clip ends and the background art board starts. I’ve had to download view and adjust a finished movie several times to eliminate a black line top or bottom or both. 

[Kevin-Monahan]

I appreciate the feature request, @Bridges Art. Thanks!

Kevin