{"version":"1.0","type":"rich","title":"Map Data","description":"A world map rendered with a natural Earth projection displays global city populations as scaled golden circles, with landmasses in dark tones and graticules overlaid. The visualization uses React with D3 v5, including `d3.geoNaturalEarth1` and `d3.geoPath` to draw the map from TopoJSON world-atlas data, while city coordinates and population sizes come from a CSV loaded via `d3.csv` and mapped through `scaleSqrt`. The SVG output layers spheres, land, country borders, graticules, and city circles, with opacity creating a subtle glow effect.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/cfd681be3b194d008d69987d46504381?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}