I've still got some major kinks to work out (it likes to get stuck in infinite loops for certain layouts) but at least I finally got it to a point where it produces an image!
I can't decide if I actually like it better or not, though. There's something "crisper" about the hard lines of the original version; but the newer version is also smoother, and would fit better into the background of the game. So cast your vote so I know if I wasted my Spring Break or not!
Also: What the heck is penumbra?