Hmm...what does verve mean again? I'll look that up. Red and blue themes both make me think of the 2 planets idea. "But now I serve a gretaer purpose" could refer to Kuja becoming his own man, and he does change a red colour in trance. He aint really blue normally though. Could also be Zidane, and seems to fit better. I'll go Zidane.

....except he hasnt known. Bollocks.