This example renders a simplified world map using a Natural Earth projection via `d3.geoNaturalEarth1` and `d3.geoPath`. It displays country boundaries as white-stroked paths, along with graticule and outline overlays, on a full-window SVG. The geographic data is fetched from the `visionscarto-world-atlas` TopoJSON source and converted to GeoJSON with `topojson.feature`. React manages the state, triggering a redraw when the data loads.