Developed and delivered a feature enhancing Electron progress bar configurability in the grafana/k6-DefinitelyTyped repository. Focused on expanding options for debugging, language selection, and custom HTML content, the work improved flexibility and localization readiness for Electron-based user interfaces. The implementation involved updating TypeScript typings and related tests to ensure type safety and maintainability, with all changes merged through a dedicated pull request. By leveraging DefinitelyTyped and TypeScript, the developer strengthened integration reliability and developer experience. No major bugs were addressed during this period, as efforts remained concentrated on feature delivery and the quality of typings and test coverage.