Interior Design: White, Grey and Black

My roommate for next year KW loves plain things when it comes to home decor. She usually picks out things that are grey or black when decorating her room. I remember freshman year, I kept asking her " Where is the color on your side of the room?" I, on the other hand, love a little drama to a look if it will be plain, so I found some designs that feature white, grey or black in a fun way. Who says they need to be boring? (P.S. I'm already working on plans so our room is the bomb.com.)