Pinterest Palette, the social media platform’s annual drop of trending colors, is back with a five-hue lineup drawn from the ideas consumers are searching, saving and exploring on Pinterest.  Introducing Cool Blue, Jade, Plum Noir, Wasabi and Persimmon—”full volume colors that are bold, bright and anything but subtle,” said the company.  “For a long time, the safest choice was to keep things quiet and neutral. Now people are ready for more,” said Xanthe Wells, vice presiden...