Herman Wikner focused on front-end development and documentation improvements across two Sanity repositories over a two-month period. In the sanity-io/sanity project, he implemented dynamic color scheme support for Sanity Studio, leveraging CSS media queries and OS-level prefers-color-scheme detection to enable automatic light and dark theme switching, which enhanced accessibility and user comfort. Earlier, in the sanity-io/client repository, he addressed a documentation issue by correcting an invalid changelog URL in TypeScript code comments, ensuring developers accessed accurate API references. His work demonstrated attention to both user experience and documentation reliability, utilizing CSS, TypeScript, and front-end development skills.