This visualization shows a choropleth-style map of Switzerland, displaying all municipal boundaries with a teal fill and interior borders in a lighter stroke. The map renders as SVG using React, with `d3.geoPath` and a projection applied to draw the geographic features from TopoJSON data loaded via `d3.json`. The data originates from the `swiss-maps` package on unpkg, which provides combined municipality geometry. The code also uses `@turf/bbox` to compute the map’s extent, though the bounds are not explicitly applied to scale the view.