Ah, I'm not creative enough to have themes or anything. I had trouble with a gif signature too xD Danny Phantom was great. I am also a fan of Avatar, Johnny Bravo, Courage the cowardly dog, My little pony, etc.
I'm glad you like my Danny Phantom theme, it was a pretty fun cartoon. In fact, I do tend to do themes of a lot of fun stuff, so expect me to have some very crazy ones at times hahaha.