During the month, contributed to the tailwindlabs/tailwindcss repository by delivering a targeted feature that adds support for custom border-color theme keys in the Divide utilities. This work involved updating utilities.ts to include --border-color in the divide themeKeys, enabling greater theming flexibility and design consistency for components using Tailwind CSS. The implementation was accompanied by comprehensive tests to ensure correct application of custom border colors and maintain backward compatibility with Tailwind 3. The development process focused on front-end development and testing, utilizing JavaScript, TypeScript, and CSS to enhance the utility’s robustness without introducing any reported bugs during the period.