This example demonstrates a minimal React application that loads a CSV dataset of CSS named colors from a GitHub gist and displays a summary message. The code uses React hooks (`useState` and `useEffect`) to fetch the data with `d3.csv` and then computes three statistics: the number of rows, columns, and the file size in kilobytes using `d3.csvFormat`. While loading, the interface shows the text "Loading...", and after the data arrives, it renders the summary in a large `<pre>` element. The visualization intentionally focuses on the bare-bones integration of D3 data-loading utilities within a React component lifecycle.