Steps to reproduce:
1. Open File > Build Profiles
2. Create a build profile and add player settings to it (press Customize Player Settings)
3. Change the Color Gamut value under Other Settings > Rendering
Actual results: Changing the color gamut value on build profile changes the value in Project Settings' player settings and vice versa.
Expected results: Value should be changed per build profile
Heads up that color gamut only shows up for platforms that supports it (such as OSX)