Arjun worked on the razorpay/blade repository, delivering sequential color support for the ChartLine component to align its behavior with ChartBar and strengthen the charting design system. He updated ChartLine’s type definitions in TypeScript to accept both categorical and sequential color tokens, enabling greater customization and consistency across chart components. Arjun also implemented comprehensive tests using JavaScript and React to ensure runtime correctness and prevent type errors, focusing on maintainability and developer experience. His work reduced friction around color token usage, improved the reliability of chart customization, and enhanced the overall maintainability of the front end codebase within the design system.