This example renders an interactive world map using Natural Earth data from the `visionscarto-world-atlas` package, fetched as TopoJSON and converted to GeoJSON via `topojson-client`. It draws graticules, an outline, and country borders using `d3.geoNaturalEarth1`, `d3.geoPath`, and `d3.geoGraticule`. The React app triggers asynchronous loading of the atlas, then updates the SVG with a `d3` selection join. The visualization is a fork that emphasizes clean, unadorned geographic boundaries.