This example renders CSS named colors from a CSV file as a pie chart using React and D3. The `pie` layout and `arc` generator create a donut chart with an inner radius of 120, while React’s `useState` and `useEffect` load the data asynchronously via `d3.csv`. Each color’s hexadecimal value fills its corresponding SVG path. The visualization demonstrates combining React’s component model with D3’s data-joining utilities for declarative SVG rendering.