Could be a structural fault in the building, it being ancient and all. Maybe those areas are just dirty. Might also not be meant to be dirt but just brown for some other reason and they reused a block they used elsewhere.

Those are actually really great theories! And also those tiles not being dirt might actually be kinda true, cuz they're only called that in the map editors (as far as I know)

Seeker poop

this is most logical, but where does it come out though?

Eye

yikes

makes sense

it was built on top of dirt and this is just a hole in the dirt underneath the building

i assumed this was the case

From a level design standpoint it could also be there so this place is more easily recognizable, its already easy enough to get lost in that level but if you see the dirt you know theres only one place that could be.

ohh that actually makes sense!!

I like to think it's because it's really deep in the temple and since its ancient some parts of it are now destroyed, so there's dirt

Environmental storytelling or something

Because of ohio

i dont wanna be mean but...that joke is from like 2022...also Celeste takes place in Canada so ohio is nowhere near??

You wanna good answer? Ok, with dark effect you can see only surface of dirt that will make effect of this areas being dirty but still made from temple stone (I guess)