This example demonstrates loading external CSV data with D3 and managing it through React state. It fetches a CSS named colors dataset via `d3.csv` and displays its file size, row count, and column count using the imported `message` function. The `useState` and `useEffect` hooks handle asynchronous data loading, showing a simple text loading message before the dataset summary appears. The rendered output is plain text within a `<pre>` element, with D3’s `csvFormat` used for size calculation.