I know for sure there was White as well as Black, and I'm not 100% but I think there are other colours too. Just shake it up ALOT before use.
I've been using it on SM and some WFB stuff and it's good, just used it on some Rhinos and the results are a little worse than GW spray, but still worth it.
I just purchased some Eldar and am currently debating whether or not to spray them white or not. Either way, I could use another spray can