This example shows CSS named colors loaded from a GitHub Gist as CSV data, rendered as a vertical stack of thin horizontal bars whose background colors match each color’s hex value. Using React 17 hooks (`useState`, `useEffect`) and `d3.csv` for loading, it maps each row to a styled `div` element, displaying a loading message until the data arrives. The code also defines a separate `message` utility that reports the data’s approximate size, row count, and column count using `d3.csvFormat`.