Chromia is a soldier under the command of Elita One and seems to function as a second-in-command for her, leading the rest of the team when Elita's not around. She's brave, hard as nails and, not surprisingly, in a relationship with Ironhide. She has also taken over from Firestar as Flareup's mentor when the latter turned out to be better suited to more offense-oriented tasks.
But in The windblade comics , she is a transformer from the planet Caminus who was sent with city -speaker windblade to be her gaurdian. Windblade and Ironhide are two of her most trustworthy friends.