http://en.wikipedia.org/wiki/John_Byrne
great call 😛
"Byrne is, in 2005, an accomplished comic book creator, and is capable of producing virtually all aspects of a book, although he does still produce work in collaboration. The one exception is coloring, as Byrne has admitted to being color-blind. He has problems distinguishing between some shades of green and brown and pencilled Iron Fist for a year believing the costume was brown."