Worked on the lichess-org/chessground repository to address UI stability and rendering reliability, focusing on a bug affecting WebKitGTK builds. Delivered a targeted fix by changing the element visibility strategy from using 'visibility' to 'display', which resolved rendering artifacts and improved the consistency of the user interface. This solution was implemented in a single, well-documented commit, ensuring clear traceability for future maintenance. Utilized TypeScript and applied UI/UX design principles alongside front end development skills to align with the project’s UI reliability goals. The work enhanced user perception of the interface and contributed to the overall quality of the codebase.