Show custom thumbnails in file browser for folders Is there a way in the Blender file browser to show custom icons or thumbnails for folders? 

It bugs me when I'm browsing through textures and I have to open all folders containing a group of PBR textures seperately to get an idea how one looks.

It would help, if there would be a way to preview files like Windows does it (see screenshot), or if there would be a way to set icons manually/via script.
As far as I know, this isn't possible in Blender for now. The file browser is being revamped for one of the next versions (I think 2.81 or 2.82 if I remember correctly), so maybe it will be a thing then.