Hi Pascal,
I think you mean setting the background color of studio pro it self?
I believe currently this is not possible within studio pro itself. You could add it as an idea here: https://forum.mendix.com/link/ideas
You could of course create something when running the app itself to indicate by color that your working in a different branche but as stated it will only show up when running and testing.
Hope this helps!
Hi Pascal,
There's no built-in method to differentiate branches, but I see a couple of options.
Hope that helps.