Hello PyMOLers,

A quick question on the surface model, is there anywhere where I can learn how molecules are color-coded. The default scheme has green, red, and bits of yellow (I know the accessible to solvents surface is what is shown, but I'm not sure what red, green, and yellow bits mean)? Also, is there a way I can turn the whole thing gray (monochrome) so that I can color in parts I want to examine with my own coloring method? 

Spyros