We have grimdark, some people point out noble dark, but generaly market prefers labels like high fantasy, heroic fantasy, dark fantasy etc. We know that they are atrificial tools for marketing and targeting audience. But why publishers didn't push something called "grey fantasy"? One that is not that as dark and gloomy as grimdark, but at the same time not as light as classical epic or heroic fantasy. I want to read and write morally grey stories, and I suspect such label would allow for easier discovery of books that sit between dark and bright. And I see that there are plenty of readers craving morally ambiguous characters.