{"version":"1.0","type":"rich","title":"Fork of Choropleth Map","description":"This choropleth map colors countries by their economic classification, using a spectral color scale. The visualization loads population data from a CSV and world map geometry from TopoJSON, joining them by country ID. The map is rendered as SVG paths using `d3.geoPath` with a Natural Earth projection, and includes a custom color legend built with `d3.scaleOrdinal`. Hovering highlights a country in red, while pan and zoom are enabled through the `d3.zoom` API.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/5f4e623330c94d1bb56efd6e306d1977?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}