Worked on the mermaid-js/mermaid repository to enhance the sequence diagram documentation, focusing on clarifying supported color formats for diagram boxes. The update detailed the use of rgba, hsl, and hsla formats while explicitly noting that hex colors are not supported, aligning the documentation with the current implementation. This technical writing effort, delivered in Markdown, aimed to reduce confusion for both users and contributors by providing precise guidance on color usage. The work improved onboarding for new contributors and helped minimize support overhead by addressing common points of misunderstanding, demonstrating a methodical approach to documentation quality and user experience.