I’ve tried to find a useful answer, but can’t seem to find one. After playing through the campaign, I was a bit confused about how the Prometheans changed colour from bluish-purple to reddish-orange. I’m not a big Halo Universe junkie so please don’t kill me for not knowing too much on Halo.
My only guess as to why the Prometheans changed colour is that the Librarian programmed the Prometheans to serve her, but when MC accidently awakened the Didact, the Didact re-programmed the Prometheans to serve him. Am I right? I am very curious about the Halo universe. Also, can Prometheans be another colour that is not Blue or Orange? Why do the Prometheans change colour?
Well, it was just for aesthetics, seeing that Prometheans in past fiction have been blue, not orange. Since blue has been much more dominant in Halo fiction than orange has, maybe it was to symbolize the shifting of the guard from Bungie’s blue Promethean design to 343i’s orange Promethean design. I really wish that in the level Forerunner that the forerunner weapons were blue as well.