{"version":"1.0","type":"rich","title":" React & D3 Vibecoding Starter","description":"This example displays a choropleth map of the United States, where state fill darkness corresponds to population values from a small inline dataset. It uses D3 v7 and topojson-client to load and convert US Atlas TopoJSON into GeoJSON features, then renders them as SVG paths via `d3.geoPath` and a `d3.geoAlbersUsa` projection. A `d3.scaleLinear` maps population extents to a blue color range, with unlisted states shown in gray. Hovering reveals a tooltip with each state's name and population via an appended `<title>` element.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/d8d2f020424e4a7c948979861663483e?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}