So of course, this guy right there: I am trying to make a wet tire, that would be operating at different temperatures. As I change Static Curve parameters in .tgm, I noticed that tire app does not follow that, then I thought perhaps it reads from .tbc, so made an adjustment there and it does not seem to be it either. So whats going on with those colours in tire app ? Are they hardcoded and same for all cars (never really thought about that, and never checked, but now I have this idea), and ought to be ignored ? Or does it take temperatures from somewhere else ?