Developed and integrated a graphic equalizer animation feature for the fossasia/badgemagic-app, focusing on enhancing user experience through responsive and visually engaging feedback during animation selection and data transfer workflows. Leveraged Flutter and Dart to implement the animation, ensuring seamless integration with existing mobile app architecture and workflows. The work established a foundation for future dynamic visualizations and potential performance optimizations within the rendering pipeline. No major bugs were reported during this period, reflecting a stable and well-tested implementation. This contribution demonstrates proficiency in animation development and mobile app engineering, with attention to maintainability and extensibility for future enhancements.