This example displays summary statistics for a dataset of CSS named colors, showing the file size in kilobytes, row count, and column count. A React application uses the `useState`, `useEffect`, and `useCallback` hooks to manage data loading, while D3’s `csv` function fetches and parses a remote CSV file from a GitHub gist. The computed metrics are rendered in a large `<pre>` element, with a “Loading…” placeholder shown until the asynchronous fetch completes.