This is a half-done automation of how it "should" look, I'd finish it but I'm le tired. It's ugly in this state, but should give you a good feel for the shape of the thing. Two halves of 32px wide parabolas, then a quick and dirty "put the gradient in there too" thing. This probably does everything but help you with what you needed help with. I can upload the .xcf file if you use gimp, might give you an idea of what I did and a better idea of what you could do.



@.@ haven't pushed pixels for a tileset in forever... feels good.