Worked on the chakra-ui/chakra-ui repository to enhance theme reliability by addressing a critical issue in the theming pipeline. Focused on correcting the handling of nested token overrides during theme merges, the solution promoted nested tokens to the default level, preventing incorrect theme configurations in downstream applications. This targeted bug fix, implemented using TypeScript and React, improved consistency across themes and reduced runtime misconfigurations, making debugging more efficient for developers. Emphasized maintainability and clarity through well-documented commit messages and active participation in code reviews, demonstrating a strong grasp of front end development and Chakra UI theming best practices.