This example demonstrates how to combine React with D3 to load and display external data. The application uses React's `useState` and `useEffect` hooks to manage the data-loading state and trigger the data fetch. It calls D3’s `csv` function to retrieve a CSV file containing CSS named colors from a remote GitHub gist. While the data is being fetched, the interface shows a "loading" message; once the data arrives, it switches to "loaded". The page is rendered into the DOM using ReactDOM’s `render` method, with D3 and React loaded via CDN in the HTML file.