Worked on the humanlayer/humanlayer repository, delivering a new Vesper theme featuring a dark mode with warm yellow accents. This theme was fully integrated into the existing theming system, including ThemeContext and ThemeSelector, and involved updating App.css with new color variables to ensure a cohesive user experience. Addressed navigation stability in the Slash Command List by resolving conflicts between keyboard and mouse interactions, implementing scrollIntoView with a ref array, and tracking navigation state to prevent unintended selection changes. The work emphasized consistency with established UI patterns and improved accessibility, utilizing React, TypeScript, and CSS for robust front end development.