{"version":"1.0","type":"rich","title":"Choropleth Map w/ Interactive Filtering","description":"This choropleth map colors world countries by economic classification using an ordinal color scale and a natural Earth projection. Users click legend entries to filter the map, dimming non-selected countries and highlighting the chosen category. The visualization uses d3.geoPath for geographic rendering, d3.zoom for panning, and a d3.scaleOrdinal with a spectral scheme. Country boundaries and metadata come from the World Atlas TopoJSON and TSV datasets, with interactive legend filters implemented in SVG.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/3a9f3b9027ad4395aedc9098c5aa88bc?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}