This example demonstrates how to load CSS named colors data from a remote CSV URL and display a simple message summarizing the data, such as the number of columns. The visualization relies on React's `useState` and `useEffect` hooks to manage the asynchronous data loading process, while D3's `csv` utility fetches and parses the dataset. Once the data arrives, the application renders the summary message using a custom `message` function, and the output is displayed inside a large `<pre>` element.