This example demonstrates loading CSS named color data from a remote CSV file and displaying its metadata—file size in kilobytes, row count, and column count—as large text rendered by React. The app uses D3’s `csv` utility inside a React `useEffect` hook to fetch the data asynchronously, storing it in component state via `useState`. The `message` function formats the summary using `d3.csvFormat` and `data.columns`. While loading, the screen shows “Loading...”; once data arrives, React re-renders the formatted statistics. The visualization relies on React 16.9 and D3 v6, with no other charting or layout library involved.