This example demonstrates how to load and summarize a CSV dataset within a React component using D3. It fetches CSS Named Colors data from a GitHub gist via `d3.csv` and displays a text summary showing the file size, row count, and column count. The React state hook `useState` manages the loading status, while `useEffect` triggers the async data fetch. The `message` utility uses `d3.csvFormat` to calculate data size, and the rendered output is plain SVG-free text.