This example renders the full set of CSS named colors as a stacked sequence of horizontal strips, fetched from a gist-hosted CSV file using D3’s `csv` utility. Each row is displayed as a React `<div>` whose background color is set directly from the `RGB hex value` field, producing a 960-pixel-wide gradient-like swatch. The visualization demonstrates a simple React state workflow: data loads asynchronously in an effect hook, shows a loading message until ready, and then maps each color entry to a styled element.