Developed and delivered a foundational design system feature for the gohypergiant/standard-toolkit repository, focusing on the introduction of an alpha color palette and opacity tokens. This work involved creating transparent black and white tokens and integrating them into semantic color definitions, enabling more flexible and consistent UI theming across components. Leveraging CSS-in-JS and TypeScript, the implementation emphasized token-based color management to streamline UI iteration and ensure safer color semantics in production environments. The approach improved design-system flexibility and traceability, supporting faster development cycles and more maintainable theming strategies without introducing new bugs during the development period.