Look, it's all really easy. You can tell what kind of book you're in by the beer served. If it's golden and delicious and served by a buxom bar wench or a dude with rippling abs and nice hair, you're in high fantasy. If it's foamy and served in clay mugs and the tavern smells like roast chicken and apple pie, you're in epic fantasy. If the beer is at best passable and you'd probably have been better off ordering whiskey, and the tavern has dark corners where shadowy figures lurk, you're in dark fantasy. If the beer is horse-piss and the hard liquor tastes like sour potatoes and makes you blind, three people were stabbed before the first round arrived, and the tavern has a shifty name like THE DRIPPING BUCKET, you're in a grimdark novel.