{"version":"1.0","type":"rich","title":"Choropleth Map with Interactive Filtering","description":"This choropleth map colors countries by their economy category and includes an interactive color legend for filtering. Hovering a legend item highlights matching countries and dims all others, while clicking toggles the selection. The visualization uses d3.geoNaturalEarth1 and d3.geoPath for geographic projection, d3.scaleOrdinal with schemeSpectral for coloring, and d3.zoom for panning. Data comes from the world-atlas TopoJSON and TSV files, rendered as SVG paths with click-driven state updates.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/d235ff2dc78b4be3a51fe756cb291474?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}