{"version":"1.0","type":"rich","title":"Choropleth Map with Interactive Filtering","description":"This choropleth map colors world countries by economy category using a sequential color scale, with an interactive legend that filters the map by clicking a category. The map renders geographic features with `d3.geoPath` and `d3.geoNaturalEarth1`, while the legend circles respond to clicks to toggle the selected category, dimming non-matching countries. Pan and zoom are enabled via `d3.zoom`. Data comes from the World Atlas TopoJSON and TSV files, processed with TopoJSON’s `feature` method.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/d46e43647ac84b49af24a851a99d0e9b?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}