This year marks the 20th anniversary of Yellow Springs Kids Playhouse. It’s been called “children’s theater for adults” with topical themes, sophisticated humor, and clever songs. This year’s show, Superhuman Happiness, adapts the Greek myths of Ovid’s Metamorphosis to explore the role of change in kids’ lives today. The playhouse and artistic director John Fleming also face some major changes. Community Voices producer David Seitz has their story.