Illusion has a lot to do with how dark the window
film appears. For example you can take a white exterior vehicle with a black interior and
put a 35% (medium darkness) film on all glasses (which is a legal film in most states that
will pass a light meter test) and it appears very dark from the illusion of the
contrasting surrounding colors of the car almost appearing illegal. The
opposite illusion occurs on black exterior vehicles with light colored interiors such as light
tan or white. These darker colored cars tend to have a more conservative look on the
darkness appearance. Interior colors tend to have the most dramatic affect on how the
window film darkness appears. This is not to say that the film works better on one or the
other. It filters energy transmission equally on both scenarios.
