Worked on the godotengine/godot repository to address a UI layout issue in the Godot engine, focusing on improving the stability of Control node resizing. Using C++ and leveraging expertise in GUI design and game development, implemented a fix to the set_position logic so that Control nodes now correctly shrink when their combined minimum size decreases. This adjustment ensures that anchors and offsets are properly respected, reducing layout regressions in dynamic user interfaces. Added regression tests to verify the new shrinking behavior after position changes, strengthening the reliability of UI layouts and demonstrating a methodical, test-driven approach to core engine maintenance.