Black features fairly prominently in "Black, Their Regalia" by Darcie Little Badger - it's in the title, and black is fairly prominent throughout the story. The Apparently Siblings play neoclassical alt-metal fusion and look goth, wearing black a lot. For their saving-the-world dance, they wear black. When they meet the Plague Eater, it's described as "...ground crumbled, and darkness enveloped their world, a darkness so absolute, even phosphenes vanished."
In addition, in the copy I have the story is printed with a black background, and the whole thing feels rather "dark" in color.
How is black being portrayed, though? As a positive thing? Negative thing? Just powerful?