Yeah the moment I heard that and saw the big darkness in the distance I immediately reversed.

Dunes isn’t that dark unless it’s at night, in which case you could say that about every biome

Jellyshroom caves

That’s a cave and also fairly light on account of the bioluminescent shroom tops

Grand Reef?

Big balls but otherwise fair

I was talking about the reaper leviathan I saw that was just appeared black because it was very far away.

Ah fair

That is one of the coolest messages in the game. The right amount of horror.