This example renders a circular packed chart of celebrity data, with bubbles colored by hierarchy depth using `d3.scaleSequential` and `interpolateMagma`. It reads from a local CSV via `d3.csv` and nests the data by category and gender before applying `d3.pack` and `d3.hierarchy`. Each leaf node displays a celebrity photo clipped to its circle using SVG `clipPath`, with images positioned via an offset field. The visualization is built as a React component that calls D3 inside `componentDidUpdate` to update the SVG layout.