During June 2025, Xiaohan Yin enhanced both the Rabby and Rabby-mobile repositories by delivering a unified UI theme and refining DeFi interface visuals using React, TypeScript, and CSS. Xiaohan improved approval management with consistent selection styles and dark-mode input placeholders, and refactored color variables for better theme consistency. On Rabby-mobile, Xiaohan fixed NFT image rendering by removing hard-coded backgrounds and upgraded the NFT sending flow with improved navigation and detail display. Additional UI polish included adjusting account selector spacing for clearer layout. This work deepened visual consistency, usability, and user trust, supporting smoother onboarding and more intuitive DeFi feature usage.