After changing the view settings in the tree view, inactive skin-bones may not dim.

[misaki-eymard]

Description:
If the Hide skin bones and constraints checkbox in the tree view settings is unchecked, under certain conditions the bones under inactive skins remain light as if they were active.

Expected behavior:
If the Hide skin bones and constraints checkbox in the tree view settings is checked, the name and icon of bones under inactive skins are dimmed in the tree view.

Steps to reproduce:

1. Open the mix-and-match-pro.spine in Spine 4.2.36.
2. Enable the bones filter in the tree view, uncheck Hide skin bones and constraints in the view settings, and check Hide viewport skin bones:
   
3. Uncheck Hide viewport skin bones.
4. Check Hide skin bones and constraints.
5. Uncheck Hide skin bones and constraints. Now you can see that the names and icons of inactive bones are still displayed brightly, as if they were active. This will persist even if you check Hide viewport skin bones again:
   

(This can be fixed by checking Hide skin bones and constraints and then unchecking it again.)

This issue was reported in the following thread on the forum:
https://esotericsoftware.com/forum/d/27100-bone-is-active-but-it-is-under-different-skin