Which of these are valid, and is there any missing ones?
/snap/gui/icon.{png,svg}/snap/gui/_snap_name_.{png,svg,desktop}/snap/gui/_app_name_.{png,svg,desktop}/snap/gui/_snap_name_._app_name_.{png,svg,desktop}
and is there any documentation about it? So far I only found Getting ready for stable and Commands, daemons & assets