I have twice been told that Audition has a black background for the workspace and grey text and that it can't be changed.
It seems ridiculous to me that I pay $600/year for Creative Cloud and you can't let me set my screen colors. I get this option with freeware! How about it? In the long run "You can get a Model T in any color you want as long as it is black" didn't work for long for Ford and the Model T cost less than Creative Cloud.