This example displays a world map with country boundaries and graticules, rendered using SVG. The map uses a Natural Earth projection via `geoNaturalEarth1` and `geoPath` to draw landmasses, a sphere outline, and graticule lines. Data comes from the World Atlas TopoJSON, processed with `feature` and `mesh` from topojson. The map is styled with a teal land fill and subtle interior borders, presented within a React component that loads data asynchronously using `useData` and `d3.json`.