This example renders a dataset of CSS named colors as a pie chart, with each slice colored by its corresponding RGB hex value. The visualization loads the data from a CSV file using `d3.csv` and manages the asynchronous state with React’s `useState` and `useEffect` hooks. React renders the SVG paths, while D3’s `pie` and `arc` generators compute the slice angles and path geometry. The chart is centered using an SVG `<g>` transform, and the code includes commented alternatives for manual arc computation.