Developed and delivered the Lume Color Theme feature for the zed-industries/extensions repository, introducing a muted dark palette with warm undertones and a soft lavender identity to enhance user interface aesthetics and branding consistency. The work involved integrating the new theme into the existing theming system, ensuring alignment with the external lume-zed-theme project under an MIT license for scalability and future extension support. Collaboration was managed through Git and code attribution, with technical focus on front end and theme development. This contribution established a foundation for improved accessibility and user experience across the product line, supporting ongoing open-source extension efforts.