During the month, contributed to the open-pioneer/trails-openlayers-base-packages repository by enhancing the Legend API to support external adoption. Focused on exporting the ListMode type, this work improved the discoverability and configurability of legend list modes for downstream consumers, streamlining integration and accelerating feature uptake. The technical approach centered on TypeScript, emphasizing type exports and thoughtful API surface design to facilitate cross-package collaboration. No major bugs were reported or fixed during this period. Demonstrated skills in frontend development and TypeScript, with a clear focus on improving API usability and enabling more flexible external integrations for the open-pioneer ecosystem.