Joana Smitaite developed a programmatic visibility control feature for the ComboBox dropdown in the iTwinUI repository, focusing on enhancing user experience and accessibility. She implemented external toggling of the dropdown, allowing dynamic forms to manage visibility and improving keyboard interaction for users. Using React and leveraging both JavaScript and TypeScript, Joana prioritized code quality and comprehensive test coverage to ensure robust integration and prevent future regressions. Her work reduced boilerplate for consumer applications and aligned with accessibility standards. During this period, she concentrated on feature delivery rather than bug fixes, demonstrating depth in front end development and UI/UX design.