Throughout Spider-Man's career, he's amassed so many enemies. A lot of the most popular and well known rogues happen to share a particular color in their costumes, thus making Peter's real enemy the color green. After looking through multiple comic book characters they often change costumes quite a bit like for example, Lex Luthor from the Superman series has had quite a few iconic looks, from that purple and green outfit (which everyone knows what I'm talking about) to the business suit...don't get started on Brainiac's wildly different designs... That said, it says something about Spider-Man's rogues that a majority of them generally have the exact same looks from when they first appeared (which means their designs are SPECTACULAR).
However which of Spider-Man's green garbed rogues could use a change in color? There are some like Green Goblin who CANNOT change color (I mean Green is in his name), but you have to wonder, while keeping the same general look, does Scorpion need to be green? Vulture? Jackal? etc. Which baddie(s) do you think could use a change in color?