Hi all! I know my account might make it look like I'm a regular around here, but I haven't actively played this game in a very long time ^^"

I noticed many of my pets have the 're-generate pet' button underneath them, listing the trait points they can re-generate, but what does this do, exactly? From what I can remember (I could be wrong), trait points are basically the points a pet has when you generate them, with visible traits taking up 2, and non-visible traits taking up 1. What I don't understand is that some of my sylestis with no special traits at all (other than maybe being a seasonal event exclusive sylesti) have this option, with some of them even being able to re-generate 3 or 4 trait points (sometimes colours as well), and it confuses me.

It'd be appreciated if someone could explain what's going on here! Sorry for my noobiness, haha.

Edit: Looking at my pets, it seems as if some of them have lost their traits... is that what this is for? I noticed that a few of them definitely don't have the traits that they used to have...

Guide to regeneration here

Thank you! That was super helpful, I haven't been on in a long time so it's no wonder I have so many regennable pets, haha.