Here's an interesting question on color. I'm interested to see what you think. Personally, I'm torn.

Have at it.
One would assume that it follows the subtractive color theory, given that it is almost exclusively green...in apperance. However, since all the colors are actually comprised of combinations of RBG, it's additive by technicality, which I'm going with.
I can see why you're torn though.
Edit: Damnit I voted for subtractive :/
i put other.... for the Sie_Sayoka color theory.
dark hueless colors(black/gray) look very nice with medium or dark green. this looks very good to the eye and with the background. the white in the text and some borders is a contrast so it stands out but not too much to make it look bad.
in short. i dont know what the hell additive vs subtractive means ~_~
Additive color = RGB. The colors come together to form a single blend of color.
Subtractive color = One color stands out, due to reflection of certain parts of the light spectrum.
Of course it's all a bit different with virtual stuff, since technically everything on the site (or the web for the matter) is a product of pixels.