This overhead texture is exactly what I'm now using on all my liveries. I know it's not realistic, but I too have serious issues seeing the separate switches and their state. The above is a small modification, but it makes a huge difference.
So is there a solution to this? I'm having the exact same issue on Steam's XP 11.31.
BTW, 11.31 is not a BETA, at least according to Steam.
Edit: Just read in another topic devs are already working on a fix, will wait patiently