Talk:Two Steps Forward, Two Steps Back/@comment-28189972-20170110085552/@comment-33293221-20170111011446

Weiss' glyphs are weird. She can make them so many different colors, and they don't always have the same design. (For instance, Time dilation looks like a clock and summoning has swords in there)

The black glyph is used to hold a point of gravity, which was used to shoot Ruby at the Nevermore. It's likely she used the black gravity glyph as a way of remotely applying force (gravity is a type of force) to close the door. I suppose a normal glyph could also do this, but the attention to detail seems purposeful.