Tinted my tails, reverse lights, and side marker lights. Looks WAY better now with my Blue/Black color theme. The tail lights and brake lights still shine through nice and bright but my reverse lights are pretty much useless now. I have brighter LED's in there but I was looking at my back up camera picture last night when it was really dark and I couldn't see a thing. As long as people can see the tail lights and brake lights clearly, that's all that matters to me.