The Plain Janes by Cecil Castellucci; Jim Rugg (Good, 2007, Pbk, Minx Books)

When a transfer student named Jane is forced to move from the cool confines of Metro City to Suburbia, she thinks her life is over. But there in the lunch room at the reject table she finds her tribe: three other girls named Jane. Main Jane encourages them to form a secret art gang and paint the town P.L.A.I.N. - People Loving Art In Neighborhoods. But can art attacks really save the hell that is high school?