This example renders the full set of named CSS colors as an annular pie chart, with each color’s hex value determining its wedge’s fill. The visualization pulls data from a CSV hosted as a GitHub gist, using D3’s `csv` loader, and constructs the arcs with `d3.arc` and `d3.pie`. React manages the application state, updating the SVG paths once the data loads. The final SVG is drawn with a `path` for each color slice, centered within a 960×500 viewport.