In the nearly 40 years that star wars has been around I'm solution sure that somebody has noticed this but i just picked it up and thought I'd share if somebody hadn't. Stormtrooper yes are really dark green lenses, not just tinted grey. I dunno, I use thought it was kind of cool. Here's a picture. Who knows, I'll bet there were different versions made as well so there are royally other versions then just tinted green.