Great plugin, very useful.
I have something i've been trying to do for my day/night circle but havent been able to figure out a solusion for yet. I would like the very lowest layer, the sky with the stars and moon, to shine through and not be darkened, but color/darken everything above. Otherwise the darkness would cover the stars, and the lamps would reveal them, wich looks wierd.
Heres an example of what I'm going for: http://dl.dropbox.com/u/930918/light.jpg
Is it possible to use or possibly tweak this plugin to achieve something like that? Perhaps a list where you specify what layers to affect.