This example renders a polished orthographic world map using the d3 geo modules (`geoNaturalEarth1`, `geoPath`, `geoGraticule`) to draw country landmasses, interiors, and graticules as SVG paths. It loads country boundaries from the World Atlas TopoJSON dataset, applies a custom color scheme with teal land and gray graticules, and uses React to manage the data loading and render the visualization.