Here's the acid test for legibility of panels:
If you take the module in question into a room that's lighted like you'd find onstage in a basic gig situation and you can't figure out what the HELL is going on with the panel markings, then you probably need to find a module of that sort from a manufacturer who understands more about what working musicians need than they have this compulsion to do snazzy designs that fail under those working conditions. If you have any of those newfangled app-controlled colored LED bulbs, just drop your lighting to about 25% of normal, then change the color to a deep red and/or a deep blue. If you CANNOT read the markings legibly enough to make patching and control decisions at the pace your music requires, then you probably need a different module for that function.