During February 2026, Brian Fong developed a scrollable sidebar navigation feature for the ToposInstitute/CatColab repository, addressing usability challenges when sidebar content exceeded the viewport. He used CSS and front end development techniques to enable smooth scrolling, ensuring users could efficiently access navigation items in data-rich workspaces. Brian validated the responsive behavior and accessibility of the new interface, laying groundwork for scalable UI as the repository grows. While no bugs were fixed during this period, his work focused on enhancing user experience and reducing navigation friction. The implementation demonstrated a clear understanding of CSS and modern front end development practices.