{"version":"1.0","type":"rich","title":"State Choropleth Map","description":"A choropleth map of the United States displays county-level unemployment rates from 2021, using a blue sequential color scale and a corresponding legend. The visualization is built with D3.js v5, leveraging `d3.geoPath` for rendering SVG paths, `d3.scaleThreshold` for color binning, and `d3.json` to load TopoJSON geographic data. A hover tooltip, implemented with a D3-selected `div`, reveals each county's specific unemployment percentage.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/42d8d55b5c664e0a8c7026465de73006?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}