This example demonstrates how to load and summarize CSS named color data using React and D3. The app fetches a remote CSV file with d3.csv, stores the parsed result in React state via the useState and useEffect hooks, and displays a brief summary of the dataset. The output shows the file size in kilobytes, row count, and column count, rendered as styled text. While the data loads, the interface displays a “Loading…” message. The implementation combines React’s component lifecycle with D3’s CSV parsing and formatting utilities.