It looks like the color scheme for G.I. Joe banner campaign is officially "black & white, with a dab of red drawing the eye to the least significant thing possible." These are the second and third posters (after this one!) highlighting a small feature on a weapon, and I'm starting to worry these details are being focused on because they're the best parts of the movie. G.I. Joe's goal is get a critic to say, "A ludicrous plot, wooden acting, and insane dialogue couldn't detract from the highly-detailed knobs, switches, and stripes adorning most of the weaponry. B-"
'G.I. Joe' Banners [Film 1]