Catena is a banking and governance platform for AI agents, a company that can't exist without regulation behind it. Catena worked with Little Room Co. to solve the hard question: how do you make something feel like financial infrastructure rather than a tool, when the customer is a machine and the person signing off is not? Catena had to look like a system built for machines and trusted by humans. Discovery landed us on composability made visible. A chromatic fill anchors the system and expresses composability through systematic balance, bound inside a tile grid, generative and modular by design. The system shipped across every surface on May 20, 2026, the same day Catena announced a $30M Series A and stepped into the agentic finance category.