I believe it’s nothing of the sort – expand one’s thinking and think of the word ‘black’ to denote the actual lack of color becoming fashionable – e.g. in our present time we can point to black and grey being so popular as a color for cars, clothing and home interiors

and so in becoming fashionable, it is mistakenly equated as being beautiful – as if all the trees and flowers in nature should suddenly turned grey and black, we would all say “hooray, another kind of wonderful beauty to behold”