Native GUI demos often look like settings panels, administrative dashboards, or collections of standard controls. Those examples are useful, but they leave another question unanswered: can the same native UI foundation express a playful, consumer-facing visual language? Clay Board Style System v0.5.0 includes a new Kawaii Companion demo built to explore that question. It renders a complete daily-companion concept in an SDL3 window with a soft color palette, mixed Japanese and English text, ...