This tileset mod actually works wonders for greenscreening. By setting the fog colour to pure green (255 green 0 red 0 blue) and the ambient light to pure white (255 red, green, and blue), and increasing fog distance to 500, it becomes extremely easy to create transparent NWN character screenshots. Perfect for profile images, for example.
I just wish this tileset didn't override Microset and was instead a standalone tileset, so that things like DMFI don't have hissy fits about their built in areas missing tile graphics. Still an amazing tool if you plan on doing any photo manipulation at all.