ok there are two egg colors blue and white, brown eggs are white eggs with a brown coating, green eggs are blue eggs with a brown coating. Blue is dominant to white, white x brown = lighter brown. Blue x brown = green. Blue x white = blue. There is many genes that determine how dark the brown eggs are and nobody knows them all or how they all work but what I already stated is generally true.
Cool, thanks! I think I'm keeping the Silver Leghorn, but its such a hard choice.