User blog comment:SomeoneYouUsedToKnow/SYUTK's V5E2 - Crazy Shit Happens - Impressions/Recap/@comment-50.96.137.186-20171026020047/@comment-4010415-20171026021613

Monty said that he had decided to make Dust color-coded for the audience's sake, even though he didn't like how that would end up clashing with characters' color palettes.

So, yes, Dust is supposed to be one-to-one. It's supposed to be color-coded to where we can actually understand what the hell is going on and what types they're using, but no one will actually tell us the color code or clarify anything about it. So, all we know for 100% certainty is:


 * Red = Fire. Always has been, aside from the White Trailer where Monty had not yet decided what he wanted Dust to do. Either way, aside from that, red has always been fire and still is, considering Dread in the Air showed Myrtenaster switching over to red Dust right before Weiss started shooting fireballs.


 * White = Wind (except pre-Volume 3 and Dew's spear, where green is wind. Dunno why they changed it. The artist who worked on WoR: Dust had told us green was wind, back in Volume 2)


 * Yellow = Lightning


 * Bright orange = Some kind of heat-based stuff that can even be used to create obsidian, which is volcanic black glass that forms in cooled lava


 * Dark blue was ice in Volume 1, no idea if that has changed