I spent 10-15 minutes going through Estal & Ebony's lineage trying to find how they're related, and I'm struggling to figure out how Estal & Shadow are related. It's quite hard to figure out how many generations removed they need to be when there's no direct notice to a common ancestor. This becomes even harder when there are multiple litters per wolf because there's more wolves to go through. This would be beneficial for pattern pairings and lore writing to note things like an estranged cousin. I figure this would be a simpler feature to add since the system already checks for the overlap- it'll just give a visual notice to the player as to where it found the overlap.
If this already exists in some capacity and I overlooked it, oops- I must've put too much effort into doing it the hard way. Though I'm still trying to find out where Estal & Shadow are related.