Breeding for color was just added so now the baby you get from breeding is based on the color of the two parents. Lethal factors also apply in the game. The only thing that isn't realistic are the recessive genes just because would create some crazy colors. For example if you breed a violet to a white and get a white it will not be a carrier.
We are currently working on a new script that will assign weight, blockiness, clarity of color, and fur quality. These will be determined in the babies based of the parents and judging in the show will go by these traits. We will also soon be adding another twist that will keep tract of standards in the line. Mutations bred with no standards in the recent history will be "born" with less quality. Game play will also effect the traits.
I am trying to build the game as realistically as possible. Your chinchillas sometimes escape the cage and need to be found, you must set up your males in pair breeding or ranch runs and only breed to the females you have placed in his cage. Chinchillas can get sick and need a vet, you have to deal with real life situations like your ac going out.
I just added some screenshots to the main page so you can see more about the game.