I'm working on a car which has different gauge colors in each car color (Tuttu The Dog's De Tolorato). I prepared my backing texture and putted it to main object. I binded gauges to m2 color slot. When gauge mapping named like "m2_speedo" or whatever, it looks good without problem, but after the extracting it to game folder with test mod in lfs button, in game it gets darker. But when i remove "m2_" prefix from the mapping name it fixes the problem (naturally this time it gets fixed color.)
Here is the photo when m2 prefix is added to mapping name:
And it shows in game like this:
When m2 prefix is removed from name:
And it shows in game like this when m2 prefix removed: