But in the middle of all this was a change in theskycolor itself that gradually clarified as an upward-streaming brown cloud risen from the earth, as if the world was turned upside down.
In scenes where we stare out at what I presume to be the back side of Anor Londo (a portion of the city we see but never visit in Dark Souls) thesky is the same color as the perpetual sunset over Anor Londo in the first game.