Worked on the FreeCAD/FreeCAD repository, focusing on enhancing the reliability and maintainability of the graphical user interface through targeted bug fixes and refactoring. Addressed issues in the freeze and unfreeze dependency handling by ensuring that toggling the freeze state on objects like PartDesign::Body correctly propagated changes to both child and dependent objects, eliminating inconsistent states. Improved the recursive unfreeze logic to apply consistently across all object types, not just specific cases. Refactored the freeze toggle functionality to reduce coupling and improve code maintainability. Utilized C++ and object-oriented programming principles, with a strong emphasis on GUI development and robust state management.