{"version":"1.0","type":"rich","title":"map viz","description":"This choropleth shows world population by country using a natural Earth projection. It renders country boundaries as SVG paths via d3.geoPath, with fill colors derived from a sequential YlGnBu scale encoding population values from a small embedded dataset. Hovering triggers a tooltip displaying country name and population. A gradient legend with an axis communicates the color-to-value mapping, while nations lacking data appear gray. The map loads country geometries from the world-atlas TopoJSON file, processed with topojson.feature.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/942eb6418d4e4c0fb50d4fb76c27036c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}