mapcrafter/mapcrafter — pull request #100 by dtfinch (2014-08-24 01:08:43+00:00)
Title: Preserve contrast/luminance in cave depth recolor

The depth color alpha blending on the cave render mode reduced the map contrast to half. I've changed it to subtract the luminance from the depth color, and add the result instead of alpha blending, in order to minimize changes to the map contrast.