Worked on expanding the asset library and refining UI parameters for the 아동3 collection in the kkkjj5199/podowon repository, focusing on front-end development with JavaScript. Delivered twenty new WEBP image assets to enhance visual variety without altering core code, enabling faster asset deployment and consistent presentation. Adjusted configuration parameters in js/digital.js to fine-tune display and behavior, specifically increasing frame and numeric settings for key elements. Emphasized low-risk, traceable changes by capturing all updates through commits, supporting easy rollback and auditability. The work prioritized feature enhancement and configuration stability, with no critical bugs reported during the development period.