This example demonstrates how to load and summarize CSS named color data using D3 utilities within a React application. The code fetches a CSV file from a GitHub gist using d3.csv and stores the resulting parsed data in React state via the useState and useEffect hooks. While the data loads, the interface displays “Loading...”; once ready, it renders a text summary showing the formatted data size in kilobytes, row count, and column count using d3.csvFormat. The visualization is minimal, presenting only this numerical information rather than a graphical chart.