I Solved Wicked's Biggest Mystery

Wicked is absolutely dominating the box office right now, and with good reason. It's an absolute bop. Ariana Grande, Cynthia Erivo, Jeff Goldblum, and the rest of the cast crushed it. But I left the theater with one question: why is the witch green? And could you or I turn green in the real world? What would that take? It's time to defy gravity with this theory...