This example demonstrates how to load and display metadata about CSS named colors using React state and D3 utilities. The application fetches a CSV file of color data via D3’s `csv` function, stores the result in React’s `useState` hook, and renders a summary message with the file size, row count, and column count. The code uses `useEffect` for the asynchronous data loading and `d3.csvFormat` to calculate the data size. The UI displays either a loading indicator or the computed statistics inside a `<pre>` element.