David Yang contributed frontend and UI/UX enhancements to the Bertie690/pokerogue and pagefaultgames/pokerogue-locales repositories over a two-month period. He implemented a “Spend all” currency button in the gacha UI, streamlining user interactions by allowing players to spend all available currency at once, and restricted EGG_LIST access during modifier selection to preserve game flow integrity. In March, he improved navigation within the Run Info UI by enabling left-button back navigation, aligning with established patterns for a more consistent user experience. His work leveraged TypeScript and JSON, with a focus on localization, usability, and maintaining clean, intuitive workflows across features.