This example shows an app that loads CSS named color data from a gist CSV file using the D3 `csv` function and displays summary statistics about the dataset in a large `<pre>` element. React's `useState` and `useEffect` hooks manage the asynchronous data loading, rendering a "loading" message until the data arrives. The page also contains reusable SVG face components—including a yellow background circle, eyes, and a D3 arc-based mouth—composed through React props, though the visible output simply reports the data's size in kilobytes, column count, and row count.