{"version":"1.0","type":"rich","title":"Choropleth","description":"This choropleth maps unemployment rates across U.S. counties as of August 2016, using a threshold color scale to bin rates into discrete categories. County boundaries are rendered as SVG paths from TopoJSON, with color encoding based on the unemployment rate. The data is sourced from the Bureau of Labor Statistics, transformed from a fixed-width text file into CSV using command-line tools, and visualized with D3 v4.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-9b16710423ffb063691d23a6af8e4bda?mode=embed\" width=\"960\" height=\"600\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":600,"cache_age":3600}