For example you feel like driving aggressively the light would turn Red if you feel like driving ecofriendly the light will turn green on its own. I know it sounds like a corny feature but who would like it?
This is how the dash accent lighting was on my Honda CRZ. Green when driving economically, blue when not at peak eco cruising, and red when you put it in "sport" mode. It was okay as a novelty feature, but I always left it in sport so the dash stayed red. Footwell and the rest of the accent lighting was always blue though.