Talk:Twilight's Kingdom - Part 2/@comment-3410511-20140627182042/@comment-10390252-20140630111930

Both that sequence and the confrontation with Discord in Princess Twilight Sparkle was, in my view, a continuity error. We already know what Celestia and Luna looked like before Luna became Nightmare Moon (it was established in the very first episode) and excellent animated versions were done by the fan animation team that did Snowdrop.

Simply put, Celestia's non-magical mane is pink and Luna's is powder blue. Personally, I regard how they were shown in those flashbacks and in Twilight's Kingdom to be an animation error.