Column width and view settings are set for each playlist or folder, rather than universal. The album art/detail view is also set by playlist or folder, rather than universal. In both cases its saved by the playlist, for each playlist.
The idea being that the 'recently played' folder can show a 'last played' column, when no other playlist does, that podcasts can show 'comments' when no others do, that a playlist of full albums can show covers, while a playlist of single songs does not, etc.
Discussed here and here:
viewtopic.php?f=4&t=38424viewtopic.php?f=4&p=199556(I'm new, so I
think I'm doing the wishlist thing right, but let me know if not and I'll fix it...)