ToME WikiKhymChanur: Since the 'light the whole level' effect (enlightenment potion, Vision spell, etc) stuffs into the player's head knowledge about all of the items on the ground, I can easily see it having some Precognition type effects. As all of the knew information slams into the player's mind, I imagine him/her thinking "Huh, I've never seen a serpent ring before, maybe it's a ring of speed, I should go check that out, and- WOW, a power dragon scale mail! Lucky!" So the precognition-like effects would be:
- Notifying the user of flavored objects (ring, potions, mushrooms, etc) which the user hasn't ID'd laying on the ground.
- Notifying the user of any good non-flavored objects laying on the ground (dragon scale mail), or any good flavored objects which have been ID'd (rings of speed).
On the one hand, this doesn't tell you anything about items which are in monster inventory, and it doesn't tell you about what the un-ID'd flavors are (it could well be a scroll of fire or an amulet of adornment). On the other hand, if you have an unlimitd source of 'light the whole dungeon', like the Vision spell, it lets you easily scum for artifact rings and amulets.
It would be easy to justify not doing anything like this by saying that the knolwedge about the level is inserted in the player's subconcious mind, so they'd have to conciously think about every item on the level (the user moving the curor onto every ring, scroll, potion and amulet on the level) to figure out if there was anything interesting in the level.