Leticia Vong focused on enhancing the reliability of FreeCAD’s GUI by addressing complex freeze and unfreeze behaviors in object state management. Working in C++ with an emphasis on GUI development and object-oriented programming, she fixed issues where toggling the freeze state on objects like PartDesign::Body did not consistently update child and dependent objects. Her contributions in the FreeCAD/FreeCAD repository included implementing recursive unfreeze logic across all object types and refactoring the freeze toggle to reduce code coupling. These changes improved workflow stability and maintainability, demonstrating a thoughtful approach to refactoring and bug resolution within a large, evolving codebase.