Worked on the web-infra-dev/rspress repository to enhance the navigation component by implementing conditional rendering of the appearance switch based on the site’s darkMode configuration. Using React and TypeScript, the developer ensured that the appearance switch is only visible when darkMode is enabled, addressing a UI inconsistency and aligning the interface with user expectations. The technical approach involved updating both the component logic and associated tests, which improved test coverage and safeguarded against future regressions related to theme-based UI changes. This focused contribution demonstrates attention to detail in front end development and a methodical approach to feature integration and validation.