This example shows how to load and summarize a CSV dataset of CSS named colors using React and D3. The React component uses the `useState` and `useEffect` hooks to fetch data with D3’s `csv` function, storing the parsed result in state. While the data loads, the display reads “Loading...”; once ready, it formats a summary message showing the file size in kilobytes, row count, and column count using `d3.csvFormat` and the data’s `.length` and `.columns` properties. The visualization itself is a plain text readout, not a chart.