{"version":"1.0","type":"rich","title":"A6 Sequential Color Barchart","description":"This example visualizes total cancer deaths by U.S. state using a sequential color barchart. The bars encode the death count by height while their color reflects the death rate per 100,000 people, ranging from light to dark red. Hovering over a bar reveals precise values via a native title tooltip. The chart is built with D3 v7, using `d3.scaleBand` and `d3.scaleLinear` for axes, `d3.scaleSequential` with `d3.interpolateReds` for color, and the `d3-legend` plugin to display the color threshold legend. Data comes from the CORGIS dataset, rendered as SVG.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/2806196bcd5d45c5b97ed858e88b42eb?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}