In mine, everything is white, except for flat "battleship gray" behind the enlarger. Steve's got it right... the safelights (they're SAFE, right?) diffuse throughout the room, so moving around is lot easier. (And safer for your toes if you're in stocking feet).
Think about how much time you actually have the lights turned out in a typical session.... sometimes the light is on, more than it's off. Checking print contrast, changing negatives, tweaking that formula, making notes, finding that pencil, mopping up that spilled beer. etc. A white room makes those important things a lot more pleasant to do.