Dark Gray Sky Box

I have found this simple item very useful for controlling lighting in my worlds. The light in the shadows is controlled and colored by the light of the sky. Unlike in the real world, in Sansar this light can penetrate and illuminate a completely enclosed space. The maze inside my pyramid in The City of Z is lit this way. Dark gray allows one to set an extremely wide range of neutral color light from very bright to a lost light faint glow.