Cadu Carvalho completed a design system color palette refresh for the torontojs/communityhub repository, focusing on expanding palettes, aligning contextual tones, and standardizing input background tokens. Using CSS and front end development skills, Cadu introduced a comprehensive set of color tokens for alert states such as error, warning, info, and success, ensuring consistent visual feedback and theming across both the base design system and CommunityHub. The work included replacing outdated color references and adding hexadecimal fallbacks for HSLA colors, which improved cross-browser compatibility. These updates enhanced UI consistency, accessibility readiness, and streamlined future theming efforts within the project.