Contributed to the helix-editor/helix repository by refining the Kanagawa color theme, focusing on improving UI contrast and readability for a better editing experience. The work involved adjusting theme configuration using TOML and enhancing theming to support more consistent Markdown rendering within the editor. By introducing new color definitions specifically for Markdown elements, the changes addressed usability for Markdown authors and ensured visual consistency across the interface. The update was delivered as a single commit, maintaining performance while rolling out the improvements. This work demonstrated attention to detail in configuration and theming, directly benefiting users working extensively with Markdown content.