Amber Lee Shand contributed to the Skyscanner/backpack repository by enhancing accessibility in the datepicker component. She focused on improving the user experience for assistive technology users by updating the aria-live attribute from 'assertive' to 'polite', reducing unnecessary screen reader interruptions while maintaining timely updates. This targeted change, implemented using React with JavaScript and TypeScript, was isolated and fully traceable, reflecting a careful approach to code quality and maintainability. Although the scope was limited to a single feature, Amber’s work laid the foundation for broader accessibility improvements and demonstrated a thoughtful application of front end development best practices.