Major changes in 2.23.4 are: * Fix background extension submenus for background context menus * Fix thumbnailing * Always re-thumbnail if a file without any thumbnail changes * Always re-thumbnail if a failed thumbnail is not up to date * Make zoom level specifications consistent (33% vs. 25%), round to 66% rather than 67%. * Never hide hidden or backup files in trash * Always copy file entire metadata when copying. Fixes timestamp preservation. * Remove desktop emblem from desktop directory, since the folder now uses a desktop icon