Developed and delivered two Gruvbox color skins, gruvbox-dark-hard and gruvbox-light-hard, for the derailed/k9s repository to enhance terminal UI readability and user customization. Leveraged YAML for theme configuration, focusing on hard-contrast palettes that improve accessibility and reduce visual fatigue in terminal workflows. The work involved end-to-end feature delivery, from design through configuration to version control, ensuring maintainable and repeatable theming capabilities. By aligning UI theming with common developer preferences, the contribution provided tangible improvements in user experience for terminal-based development. Demonstrated skills in configuration and UI theming, with a technical emphasis on YAML-driven customization and maintainability.