Yeah... you're pretty much on your own. Outside of my G&W guide (on the blog) there isn't any documentation. Just grab a hex editor, check out the CLR0 files (if you look the pac as a whole, just ASCII search for CLR0) and try figuring it out. --- Actual colors usually take on a RRGGBB00 format, though a lot of other changes can be made by modifying pointers (again, G&W tutorial --- it points out where they are for him, outside of that... dunno)
So what you're saying is that if we find them, we can't edit them?