I called the GM Infotainment Technology line to ask about this issue and the possibility of being able to change the brightness and contrast. as the dealer had no idea. They said they had nothing planned on doing any updates for that. I also went to the dealer and sat in 3 other trucks, all were the same. To be honest I just got real used to it but it would be nice to have a fix. The loaner I got from my dealer was a 2019 Traverse, The Nav / Infotainment system we so much cleaner, nicer, colorful, not washed out, it was a huge difference over my 19 HC.