I've been under the weather the past couple days and so haven't been online to see the growths, but happy to see them growing now!
They actually don't have any specific color, I don't know about about genetics to be able to pick specific ones (but mostly cause I can't really tell the difference between a lot of the color types, especially when they look different across various photos thanks to different lighting conditions). I did make sure when making one with red eyes to make sure there are actual rats with a similar color coat with a similar eye shade, but thats the most I was able to do ^^