In my home folder, I created a folder (nouveau dossier) with a personalized icon.
In Caja, I open this folder: the Caja logo in the list of windows changes to the icon I chose. But when I go back to my home folder, that logo remains that icon and does not revert to the home icon.
If instead of opening that folder, I open one of the pre-existing folders, the Caja logo does change but as expected reverts to the home icon when I go back to the home folder.
What happens when I go back to the home folder:
Not a big deal really, but as a Ubuntu Mate user, I might be a bit spoiled and just want everything to be perfect.