{"version":"1.0","type":"rich","title":"Choropleth map","description":"A choropleth map colors world countries by economy type, with a color legend and hover highlight. It renders GeoJSON country paths using `d3.geoPath` with a `geoNaturalEarth1` projection, and supports pan and zoom via `d3.zoom`. Data comes from TopoJSON world-atlas files and CSV metadata joined by ISO code; `scaleOrdinal` assigns categorical colors from `schemeSpectral`, and the legend is built with D3 selections.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/56c9cd87c98e472294063e90068707c6?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}