Here’s a new-media wrinkle: a lightly animated Veronica cartoon, “Riverdale Royalty,” on YouTube at https://www.youtube.com/watch?v=rjpiRCRrQIU. It’s got a single gag about how Veronica takes advantage of Reggie, a jaunty video-game-type music score, and no spoken dialogue. Speech balloons (and sighs, and hearts, and plumes of smoke) appear over the characters’ heads with expert comic timing, giving the joke a perky momentum. There’s a briskness and brightness to the whole endeavor that’s frankly captivating. What colors! What light! What a refreshing minute and eleven seconds!