Board Thread:Speculation House/@comment-27121579-20160104011025/@comment-26397825-20160105100348

And that reason was; she has Dust infused in the dress. It still counts in the discussion, even if they hadn't decided what the glow would symbolise (which...I kind of doubt Monty would do that. He knew he wanted Dust to glow when in use, and therefore it stands to reason that Cinder's glowing dress is Dust, even way back then.)