I’m guessing the colors for the Millennium costumes based on a partially-colored calendar picture and OVA previews.
Rip’s eyes are red in the calendar, blue in the preview. As Shine is based on the TV series, in which all vampires except FREAKs have red eyes, I’m going with the red.
Rip: The riffraff who did this will be punished…
[Vampires: don’t eat]
[Just not the type]
[Preoccupied with his experiments]
Rip (thinking): And I know just who it was.
Rip: Here, kitty kitty kitty…