Koyo (紅葉) is the centuries-old Japanese practice of watching maple leaves turn. Across Kyoto's temple gardens, Acer palmatum momiji ignites in a single simultaneous gradient — anthocyanin red bleeding into carotenoid orange and yellow — against weathered cedar timber and vermilion framing.

This system treats that gradient as the only ornament it needs. A deep chestnut ground holds vast quiet space; the leaf-fire enters sparingly, like a single branch framed in a temple window. Type is mincho serif throughout, phenological and seasonal in rhythm, never loud.