This example demonstrates how to load and summarize CSV data using React and D3. It fetches a remote CSV file containing CSS named colors and displays a text report showing the data size in kilobytes, number of columns, and number of rows. The app uses React’s `useState` and `useEffect` hooks to manage asynchronous data loading and state updates, while the `d3.csv` method performs the parsing. The final output is rendered as an SVG-free `<pre>` element showing the computed statistics.