Worked on enhancing the documentation theming capabilities for the web-infra-dev/rspress repository by developing customizable MDX components within the documentation layout. Leveraging React, TypeScript, and Markdown, introduced a feature that allows specific HTML elements, such as paragraphs, to render with custom classes, supporting per-element styling for both English and Chinese guides. This approach enabled consistent theming across documentation without altering existing content paths, streamlining future styling updates. No major bugs were reported during this period, and maintenance efforts focused on supporting the new feature rollout. The work emphasized maintainable frontend development and robust documentation practices using modern web technologies.