Part of being a style icon is having a consistent style. In general, I don't really think of trend-followers as style icons. I think of people who have a distinctive, definitive style as being style icons.
And so, cartoons make really great style icons as they're basically always wearing the same thing and looking amazing doing it.
The biggest cartoon style icon of mine? Jane from Daria.
Jane was an artist. She had many ear piercings, bobbed hair and some serious red lipstick. She was so '90s cool. She was not part of the mainstream, but she wasn't quite so cranky and cynical as Daria.
Daria had her own '90s Velma thing going on that is admirable as well. Both ladies are sporting excellent books and sour expressions. Love those tights under shorts, Jane!
And while cartoon characters never change their looks, Jane did sometimes take off the jacket. Look how cool she is! I love her and her '90s beatnik style. No one, flesh and blood or drawn, did it better!