This visualization displays all CSS named colors as a full-screen pie chart rendered with SVG. The code loads color data from a CSV file using `d3.csv`, then applies `d3.pie` and `d3.arc` to compute the slices. React manages the component state, fetching data via `useEffect` and rendering each slice as a `<path>` whose fill is set to the corresponding hex value. The chart uses fixed dimensions of 960×500 pixels and is built with React 16.9, ReactDOM, and D3 v5.