The walls in here are covered in homasote, a type of tack-withstanding fiberboard, and that, in turn, is covered in white paint. White...but it would seem grey next to this sheet of paper, which would seem positively grey lying in the snow. I suppose it's all relative.

Snow just seems like the whitest thing that could ever be, until you watch it fall greyly against the blindingly white backdrop of the sky.