This example shows how React state and D3 utilities work together to load and summarize a dataset of CSS named colors. The application displays a text message reporting the dataset’s size in kilobytes, row count, and column count once the data arrives, or a “Loading…” placeholder before that. The code uses the `useState` and `useEffect` hooks to manage the asynchronous fetch, while `d3.csv` retrieves the data from a GitHub gist URL. React renders the message as SVG text, and `d3.csvFormat` calculates the byte size.