Developed and integrated the Phosphor theme as a new extension for the Zed Editor within the zed-industries/extensions repository, focusing on enhancing user customization through a distinct dark green color scheme. The work involved updating submodules and managing configuration files using TOML to ensure seamless repository integration and operational readiness. Leveraging skills in configuration management and git, the developer streamlined the delivery process for end users and facilitated collaborative development by coordinating with other contributors. No bug fixes were recorded during this period, with efforts concentrated on feature delivery and repository maintenance to support improved theming capabilities for the editor.