During June 2025, this developer focused on enhancing the SSI-Site/Site-SSI repository by addressing color theme inconsistencies within the CO section, specifically targeting the exhibition and members areas. Using JavaScript, CSS, and Styled Components, they implemented a CSS variables-based approach to standardize background and content colors across all breakpoints. This solution improved cross-device visual consistency, accessibility, and alignment with the design system, ensuring correct color application and better readability. By consolidating color definitions into centralized variables, they streamlined future theming and maintenance, demonstrating a methodical approach to front end development and a strong understanding of CSS-in-JS techniques.