1320 cubic feet of nothingness

My daughter's bedroom is EMPTY. I'm talking echoes and loneliness. Four walls colorblocked with hot pink, yellow, bright orange and neon green, with tie-dye curtains on the window and glow-in-the-dark stars on the ceiling encasing 1320 cubic feet of nothingness. I avert my eyes when I walk down the hall, otherwise it makes me feel sad. However, it does have many possibilities. Definitely a queen-sized bed. Maybe a big desk to scrapbook on. Possibly move the treadmill in there as well - will moving to a new room make it more usable? (At least I won't be tempted to throw clothes on it.) I think I want to paint it apple green. For awhile I've been thinking about that color for the living room, but it's such a bold color, I'm a little afraid of it. Why is that? (Anybody out there like to paint?)