Herman Wikner contributed to the sanity-io/client and sanity-io/sanity repositories over a two-month period, focusing on both documentation accuracy and front-end accessibility. In March, he addressed a documentation issue by correcting an invalid changelog URL in TypeScript source files, ensuring developers referencing API v2025-02-19 could reliably access up-to-date information. In April, he implemented dynamic color scheme support for Sanity Studio, leveraging CSS media queries and OS-level color preference detection to enable automatic light and dark theme switching. His work demonstrated proficiency in CSS, TypeScript, and front-end development, with a focus on maintainability, accessibility, and developer experience.