What your asking about is called SELECTIVE breeding, it's been around since man first domesticated the chicken and cow. Selective breeding has been used to enhance the colors of snakes for years one of the biggest advocates that comes to mind is Jeff Ronne but there are several others that do it also. If you breed a Lesser or a Mojave to an outstanding normal then you will get better looking babies. Take those babies breed them through the outstanding mom and you get better babies keep doing this over generations and you will create some really awesome babies... With recessive genetics like albino or lavender albino the darker the babies the more high contrast the albinism is...