This example demonstrates how React and D3 can work together to load and summarize a dataset of CSS named colors. The visualization displays a text-based summary showing the file size in kilobytes, row count, and column count once the data finishes loading. The code uses React’s `useState` and `useEffect` hooks to manage the loading state, while D3’s `csv` function fetches the remote CSV file. The `message` function formats the output using `d3.csvFormat` to calculate the data size.