During March 2025, Lukas Jirak enhanced the ppy/osu repository by developing the ArgonJudgmentCounterDisplay UI component, integrating it with the HUD and theming system to support customizable colors and wireframes. He implemented a visual test scene to validate display modes and user interactions, improving both user-facing customization and UI stability. Using C# and the osu! Framework, Lukas addressed formatting and initialization issues in the judgment counter, and improved the reliability of skin deserialization tests. His work focused on robust UI development, refactoring, and comprehensive unit and visual testing, resulting in more predictable releases and faster quality assurance cycles for the project.