Worked on improving theme switching reliability for embed elements in the kart1ka/cal.com repository, focusing on consistent user experience across different system and user preferences. Addressed a bug where themes did not update as expected by standardizing embed element theme class names and replacing hardcoded strings with constants to enhance maintainability and prevent future regressions. Utilized JavaScript, TypeScript, and CSS to ensure that theme updates propagate correctly in all scenarios, aligning embedded components with the intended appearance. The work emphasized robust frontend development practices, resulting in more predictable theming behavior and improved consistency for users interacting with embedded calendar elements.