You would probably have better luck if you listed the parents color/traits, and their parents before them. No Im not trying to get at your little secret, but I speak in the manner of what is recessive, dominate, and incomplete dominate. That will help you figure out color, as well as other traits.
You wrote secret project, naturally many people are going to guess. Next time I suggest writing what color do you think my mutt chickens are, you could even list the parent colors, and leave out the breed.
Good luck with your breeding project, and keep an eye on the generations before, as well as this one.