Worked on enhancing the langgenius/dify repository by implementing fullscreen mode design tokens for the streamdown table, focusing on improving readability and usability. The approach involved updating CSS to refine background and text colors as well as hover interactions, ensuring a more accessible and visually consistent user experience. By bridging Dify design tokens into the fullscreen feature, the work promoted design system consistency and streamlined UI theming across components. Demonstrated expertise in CSS, front end development, and token-based theming, contributing to maintainable and scalable interface updates. The project emphasized collaborative delivery and reinforced accessibility standards within the existing design system.