{"version":"1.0","type":"rich","title":"Circles on a Map","description":"This visualization displays a choropleth map of countries colored by economic classification, with an interactive color legend that filters highlighted regions. The map uses the Mercator projection through `d3.geoMercator` and renders geographic paths via `d3.geoPath`. Users can click legend circles to highlight matching countries, which are drawn using a categorical `scaleOrdinal` with the `schemeSpectral` color range. Data comes from a CSV file joined with TopoJSON world atlas features, and the entire SVG view supports pan and zoom through `d3.zoom`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/0ea972b88070458aaf8de218ade3fcd6?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}