This example demonstrates loading CSS named color data from a CSV file and displaying a summary of its size, row count, and column count as text. The visualization uses React state via the `useState` and `useEffect` hooks to fetch data asynchronously with D3’s `csv` function, then renders the result through a custom `message` function that formats the statistics. The page shows “Loading...” until the D3 v5 CSV parsing completes, after which the formatted summary appears in a large monospace font.