{"version":"1.0","type":"rich","title":"Heatmap Chart: Age vs. Balance","description":"This heatmap chart visualizes the distribution of customers’ age versus balance, using a sequential viridis color scale to encode balance values. The D3 v7 code fetches CSV data from a GitHub gist, maps age and balance to linear scales, and renders each record as a circle positioned by those axes. Interactive tooltips appear on mouseover, and SVG axes, labels, and a title are drawn with d3.axisBottom, d3.axisLeft, and text elements.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/6c9c832c5d984a359f39485caec0e70f?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}