{"version":"1.0","type":"rich","title":"Choropleth Map with Interactive Filtering","description":"A choropleth map colors countries by economic category using a spectral color scale, with an interactive legend that filters the map by clicking a category to highlight it. The map loads world geometry from TopoJSON and country metadata from TSV. Built with D3 v5, it uses `d3.geoPath` with a Natural Earth projection, `d3.zoom` for panning, and SVG for rendering. Clicking a legend item toggles selection, dimming non-matching countries and emphasizing the chosen group.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/b6298e347d4d44e99c3e63cc01c1bd3c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}