This example demonstrates loading an external CSV file using D3’s `csv` function within a React component. It fetches a dataset of CSS named colors from a GitHub gist and displays its properties as plain text: the formatted CSV size in kilobytes, the row count, and the column count. The React app uses `useEffect` and `useState` to asynchronously fetch and store the data, then renders the summary via a custom `message` function that calls `d3.csvFormat` to measure the data.