This example presents a polished world map using a Natural Earth projection rendered as SVG. Country landmasses are filled with a teal color, while internal borders are drawn as thin strokes and graticules overlay the sphere. The visualization uses d3.geoNaturalEarth1 and d3.geoPath to project geographic features, with d3.geoGraticule generating the grid. TopoJSON data from the world-atlas package is loaded via d3.json, and the `feature` and `mesh` functions extract land polygons and interior boundaries. React manages the component state, while CSS defines the color palette.