Anyone know what level of tint is on the factory windows (front to rear). Anyone found after-market tint film that looks like a good shade/color? I am trying to decide if the rear and sides need to be darker. I usually get cars professionally tinted down to 30-35% light transmission. The liquid platinum is crying out for a nice tint job, but some films have a greenish tinge that I don't want. Just non-reflective metalized tint that is charcoal gray. Any ideas?