Board Thread:Speculation House/@comment-25936766-20170825025659/@comment-27144409-20170825030843

I thought the blue regions were black, but that seems to partly be screen brightness.

Natural volcanic activity seems like the tamest possible reason for the dark grey section of the dragon. Mind you (I assume) that level of volcanic activity is rather scary, as we're talking about a large chunk of a continent. Alternately it could be artificial, in which case the question is, "Dust or Grimm?"

The red in Anima could potentially be massive oxidized deposits of iron, but I'm not surd.