Strangetown, Here We Come.

Totally agreed. I'm the same, I want the four hair colours to be consistent, but I don't mind extra Lyran eyes. I think that's got to do with all the eyes having different genetic properties of their own (and they all look so good!), while the hair is just in four colour bins, no matter what. So you can have a medium blond parent have a very light blonde child but the game doesn't distinguish between the two. I like order, dammit!

Maybe I just have OCD.

And I really should go to bed now, before I stay up all night babbling about sim genetics. :D