How do you do "idyllic medieval countryside" in a "Dark" way?
I guess the various Witcher games managed it; as does my still-current pastime, Sacred 2, where Artamark is fairly dark with monsters, fog, creepiness but mostly mud. Of course "dark" is a subjective term. But one that probably involves mud.
I have to agree, that each of the characters presenting themselves as perfectly clean without mud, dirt, grime, or blood staining their faces and or clothing (despite having just removed themselves from the burning wreckage of a crashed spelljammer) really disconnects the whole "dark" mood that it might be trying to convey. I mean, I can possibly understand if Gale presented himself clean (by casting Prestidigitation). But everyone, looks too clean for the immediate setting. If we were in a Noble's home, or even in a gentrified part of town, fine. But we aren't, we are crashed outside some ruins, and everyone is clean, even the temple looters (and I don't recall seeing any wash basin's in the area).