chicka, there should be NO brown. They should be black, with a green sheen.. No purple sheen either. Aprox. 1 inch of white is allowed on 1 feather. That's it.
Chet Hupp from Az, used to breed them, but I haven't seen him on here in a very long time. There are a couple people that have some from his Blue project on the SOP thread that look good. Kurt, @ Rattlesnake Ridge is on once in awhile, and has some very nice ones too. Health issues prevent him from being as involved as he once was. Matt Ulrich from Alabama is still actively breeding. Remember that trip to Alabama I took a couple months ago for chicks? Well, Matt is who I went to get chicks from.