Here's one of those mini-improvements that I think pet classes will approve of. It's pretty straightforward: click-to-cure pet detriment placeholder icons. They're almost transparent and they don't appear all the time -- only during combat and when you mouse over the Pet window. Click the screenshot above to take a look.
So instead of that nebulous blank area under the pet controls your eye can predict exactly where those detriments will appear. Try it! User-friendliness +1. My baby conjuror gives it a paws-up.
If you decide you're not into the placeholders, you can turn them off. The Pet window doesn't have a page in the Window Manager, but there is a line near the top of the pet window that you can change from true to false. Easy peasy:

I've been scouring my messages and Discord to remind me which member offered this suggestion and I'm coming up short. Please poke me again so you can get credit!