Andrii B. focused on refining the user interface of the ant-design/ant-design repository, addressing a specific issue with the default solid button’s hover and active text color. By leveraging CSS and TypeScript, Andrii ensured that the button’s visual feedback accurately reflected the intended design tokens, resulting in consistent contrast and improved usability across different themes and states. The work involved a targeted bug fix rather than feature development, demonstrating attention to detail in UI design and front end development. This contribution enhanced the overall design system’s reliability, ensuring that users experience clear and accessible feedback during interactive button states.