Contributed to the box-ui-elements repository by delivering targeted accessibility and document generation enhancements over a two-month period. Focused on improving the Sidebar and Tags components, the work introduced ARIA attributes and adjusted heading levels to align with WCAG standards, enhancing usability for assistive technology users. Expanded the DocGenSidebar to support rendering of checkbox, radiobutton, and dropdown tags within PDF templates, updating related types and tests to ensure robust integration. Leveraged React, TypeScript, and JavaScript to implement these features, emphasizing maintainability, regression safety, and audit readiness while laying groundwork for broader accessibility improvements across the front end codebase.