Raoul got whitewashed between his appearance in "Make Tracks" (Hispanic skin tone) and "Auto-Bop" (Caucasian skin tone). Moreover, Raoul's lighter skin tone also appears to reflect his more heroic persona. In RPG terms, Raoul is basically Chaotic Neutral in "Make Tracks," but by the end of the episode he grows to become Chaotic Good, and in "Auto-Bop" he appears to have levelled up to Neutral Good.

And remember that the G1 cartoon was no stranger to racial undertones, as this was the very reason why Casey Kasem quit the show.