Developed a configurable color theme setting for interactive prompts in the jdx/mise repository, addressing readability challenges on light terminal backgrounds. The work involved implementing end-to-end theming across all interactive widgets, updating both the configuration schema and supporting documentation, and ensuring compatibility with existing interactive flows. Leveraging Rust for UI development and configuration management, the solution introduced multiple built-in themes selectable via environment variables or configuration files. Manual testing validated improved user experience and seamless integration with the current system. The depth of the implementation is reflected in comprehensive updates to code structure, configuration files, and user-facing documentation within the project.