Key
Teleportal (name label)
Stairs, red portal or hidden way — click to follow
Shopkeeper (behind a counter)
Indoor NPC: trainer, clerk, priest
Wanderer (most seen spot)
Mob sightings per tile in a room
Rune, lettered by kind: L level, C carry item, P place item, S stat, I item; hollow = not yet typed
Door found locked (stand spot)