This example demonstrates loading a CSV dataset of CSS named colors and displaying a text summary of its contents. The application uses React hooks (`useState` and `useEffect`) to manage the asynchronous data fetching state, while the D3 `csv` function retrieves the data from a GitHub Gist URL. Once loaded, the `d3.csvFormat` utility calculates the file size in kilobytes, and the interface reports the total number of rows and columns, initially showing a “Loading…” message before the data arrives.