Aside from their special abilities, a superhero's costume is an important part of their identity. While the colorful costumes were created to catch the reader's eye, there's more to them than meets the eye. There are a lot of tiny details, hidden symbols and meanings that many of us have probably never noticed. Here are 4 superheroes whose looks have hidden meanings you never knew: 1. Hulkideiaseopinioes.comBelieve it or not, when The Incredible Hulk made his first comic book appearance, he was not green. Stan Lee and Jack Kirby were inspired by Frankenstein's monster, so they gave him gray