{"version":"1.0","type":"rich","title":"Circles on a map","description":"This map uses a natural Earth projection to display countries colored by their economy type, using a spectral color scale derived from UN population estimates data. The visualization supports interactive filtering: clicking a legend item highlights countries with that selected economy while dimming others. Built with D3 v5, the code employs `geoPath` for map rendering, `scaleOrdinal` for color mapping, and SVG circles in the legend for category selection.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/939fe6bec1274221bdc57450dcf1971f?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}