{"version":"1.0","type":"rich","title":"Largest Cities by population in 2020","description":"This chart displays the 100 largest U.S. cities by population in 2020, with blue circles sized using a square-root scale and colored by population. It uses D3’s `geoAlbers` projection to render state boundaries via `geoPath`, then overlays city locations as `circle` elements positioned through the same projection. City population data comes from a CSV hosted on GitHub, and the underlying map uses the `us-atlas` states-10m GeoJSON. The visualization is built with React and SVG.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/e9a2b6197eb14b87aafbc85a09b90fe8?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}