This example demonstrates a minimal React component that asynchronously loads a CSV file of CSS named colors using D3’s `csv` utility, then displays summary statistics about the dataset. The app uses React hooks (`useState`, `useEffect`) to manage the loading state, showing “Loading...” until the data arrives. Once fetched, it renders a formatted message with the file size in kilobytes, row count, and column count via a custom `message` function. The visualization is purely text-based, highlighting the integration of D3 data parsing with React’s declarative state management.