Worked on the microsoft/vscode repository to maintain and enhance UI consistency across themes, focusing on targeted bug fixes over a two-month period. Addressed a regression in the Dark Plus theme by reverting operator foreground color changes, restoring the previous appearance and ensuring accessibility. In a separate update, resolved a UI issue with the Toggle component by reinstating the active state border color, improving visual feedback and reducing user confusion. Employed TypeScript, JSON, and UI design skills to implement precise, low-risk changes through disciplined Git workflows, prioritizing stability and alignment with design system standards while maintaining a clear focus on user experience.