This example demonstrates a minimal React application that loads a CSV dataset of CSS named colors from a GitHub gist and displays summary statistics about it. The app uses React’s `useState` and `useEffect` hooks to fetch the data asynchronously via D3’s `d3.csv`, then renders a plain-text message with the file size in kilobytes, row count, and column count using a custom `message` function that leverages `d3.csvFormat`. While the data is loading, the interface shows a "loading..." placeholder. The visualization highlights how D3 utilities can handle data loading within a React component’s state management.