{"version":"1.0","type":"rich","title":"Choropleth Map with Interactive Practice","description":"This visualization presents a world choropleth map coloring countries by economic classification using a spectral color scale, with an interactive legend that filters highlighted countries on click. Built with D3 v5, it employs `d3.geoNaturalEarth1` for projection, `d3.geoPath` for rendering, and `d3.zoom` for panning and zooming. Country data comes from the World Atlas TopoJSON and TSV files, while the legend uses `d3.scaleOrdinal` and `d3.schemeSpectral`. Hovering over a country turns it red, and the legend’s clickable ticks dim non-selected categories.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/0ce5cc7086bd42f4b7c702f81052f67b?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}