Stalls are separated with black lines, though the walls are usually just made of cloth. I named a few of the closest ones.
N are people Eggy can currently see.
S are stone statues.
C is the weird chicken.
Orange squares mark the insides of a tent, they contain various items and furniture you'd expect in a market stall. Generally can't run inside.
Grey square are roads, normal movement.
Light orange squares have some stuff, like boxes in them. Walking through such a square costs x2 movement and you can't run through them.
Brown squares are so full they are practically blocked. A Climb check is required to get through. (The paths behind and between the stalls are supposed to be kept open, but...)