{"version":"1.0","type":"rich","title":"Choropleth Map with Interactive Filtering","description":"A choropleth map colors countries by economic classification, with an interactive legend that filters the map to highlight a selected income group while dimming others. The visualization also includes a linked scatterplot showing GDP over time for each country, where points corresponding to the selected economic group remain opaque. Built with D3 v5, the map uses `d3.geoPath` and TopoJSON to render geographic features, while the legend and scatterplot are implemented as reusable functions. Data is loaded from a CSV file hosted on VizHub, and SVG is used for all rendering.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/8839906f9f0a448d85f427a8df31c801?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}