The sky and the ground are black, like a computer screen that hasn't had anything drawn into it yet; it is always nighttime in the Metaverse, and the Street is always garish and brilliant, like Las Vegas freed from constraints of physics and finance. But people in Hiro's neighborhood are very good programmers, so it's tasteful. The houses look like real houses. There are a couple of Frank Lloyd Wright reproductions and some fancy Victoriana.