Worked on the Shopify/polaris-viz repository to enhance data visualization capabilities by implementing conditional area fill rendering for the LineChart component. Developed a new shouldShowArea prop within LineSeries, enabling area fills only when datasets contain three or fewer points. This approach reduced visual clutter for small datasets and improved chart readability on dashboards, while maintaining full area rendering for larger datasets. Ensured consistent API behavior by propagating the logic from LineChart to LineSeries, aligning with the existing Polaris Viz architecture. Utilized JavaScript, TypeScript, and React to deliver this feature, focusing on clear, actionable dashboards and maintainable front-end code.