Contributed to the microsoft/PowerToys repository by enhancing the Power Accent feature to support Greek Polytonic characters, thereby improving accessibility for multilingual users and aligning with the project’s internationalization goals. The work involved C# and UI development, focusing on expanding language input coverage within the application. The implementation referenced related pull requests to maintain consistency with the broader roadmap and included thorough build validation through compilation checks and functional observation of Power Accent behavior after the changes. This feature addressed a tracked issue and was prepared for review and integration into upcoming releases, demonstrating a methodical and collaborative engineering approach.