I cant remember if there were other colour options but I got a FM and the lady said if i wanted a colour to paint it on in normal varnish and take it off with normal remover (which wouldnt affect the gel)
Make sure you check about getting it removed properly. They sold me stuff to remove it with and it all came off in a horrible mess and my nails were so damaged and brittle. The full nail length has only just grown out and got some strength back. I do think now that this was either just mine and my sister's reaction to whatever was in it or the lady that did it for us. I can't see them ever using the stuff if that was what it did to everyone. But check to be sure!