Just noticing how chase genes didn’t even try with Pete like not even alil purple eye �...

They should be glad about that.
It probably happens later, but if it happens: the later the better.

Chase's eyes at that age were blue, they actually should have been blue in those flashbacks when he was a child.
Purple eyes means that they manifisted as dominant alphas. Chase siblings, three of them had purple eyes at Pete's age.
If Pete's eyes would be purple, he would have problem with emotions like Chase's siblings + other things.