This example displays a world map rendered as an SVG using React and D3. It visualizes geographic country boundaries from the World Atlas TopoJSON dataset. The code uses `d3.json` to load the data, `topojson.feature` to convert it to GeoJSON, and renders the resulting features with a `<g className="marks">` group, though the map itself is not yet drawn. The visualization is styled with Poppins font and a clean, minimal layout.