Kumakuma4w enhanced the Synesthesias/PLATEAU-SDK-Toolkits-for-Unity repository by delivering a targeted API update focused on road network export workflows. They exposed public getter properties for trafficLightGroups and lightingSequences within the TrafficIntersection class, enabling external tools to access these data structures directly. This C# development effort was minimal and non-breaking, as it made existing internal data available without altering core logic or behavior. By improving SDK integration with Unity and streamlining downstream exporter workflows, Kumakuma4w reduced manual data handling and enabled more robust simulation scenarios. The work demonstrated focused SDK development and a clear understanding of Unity’s extensibility needs.