What are the official color realms of the DCU? The ones that relate to aspect of nature: how many are there? Which notable characters are their agents?
I know about The Green, the sapient collective realm of plants, and Swamp Thing's connection to it.
I've heard about The Red, which is the same deal, but for animals instead of plants. Animal Man, Vixen, and maybe Beast Boy are involved, I think.
I think there is also The Grey, but don't know anything about it.
Is The Blue a thing? Other colors?
Questions, questions, questions ...