{"version":"1.0","type":"rich","title":"Interactive Map - Countries by Income","description":"This interactive map displays countries color-coded by income group using a natural Earth projection. A legend to the left allows filtering by income category, dimming non-matching countries while highlighting selected ones. Built with D3 v5, the visualization uses `d3.geoNaturalEarth1`, `d3.geoPath`, and `d3.zoom` for panning and zooming. Country boundaries come from TopoJSON data sourced from the World Atlas, with income values joined from TSV metadata. The color scale uses `d3.scaleOrdinal` with sequential blue schemes.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/8d257dc57e3c4e66aea22bf335fb23b1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}