This world map displays country boundaries using a Natural Earth projection, with graticules, a shaded sphere background, and stylized land and interior border colors. The visualization is built with React and D3, using `geoNaturalEarth1` for the projection, `geoPath` to render the geometries, and `geoGraticule` for the latitude/longitude grid. It loads World Atlas TopoJSON data from unpkg, which is converted via the `topojson` library’s `feature` and `mesh` functions to produce the land polygons and shared interior boundaries, all rendered as SVG paths.