I decided to create a new account today (too new to post in forums yet) and tried to select a grullo stud, his colour wouldn't change in the image (it stayed light bay like the first option) but I assumed since I selected grullo, the genetics would be there. Nope, I have a bay stud. Click image to view link.

that's because new AAs (caught+starters) can't have dun

Perhaps that should be made clear on the new starter page as I would've selected something else instead Bay if I'd known Grullo wasn't an option for AAs. No new player would know that already and I also didn't know that about AAs previously