Gytis Vaitkevicius refactored the Product Catalog Primary Action Button in the wix/cli-app-templates repository, migrating it to use a new PrimaryActions React component. This update involved renaming the button’s prop from 'text' to 'label' to align with the new component’s API, while ensuring the core add-to-product functionality remained unchanged for end users. By standardizing the action component, Gytis improved maintainability and set the stage for consistent UI patterns and easier localization across the catalog. The work was implemented using JavaScript and TypeScript, demonstrating a focused approach to front-end development and thoughtful attention to long-term codebase scalability.