{"version":"1.0","type":"rich","title":"Fork of Activity_7.2","description":"This stacked area chart shows population trends for China, India, the USA, and Indonesia from 1960 to 2020. It uses d3.stack, d3.area, and d3.scaleTime with annotated dots at five-year intervals on a light gray grid. Data is loaded as CSV from a GitHub gist and rendered as SVG with d3-axis for tick marks and a legend. Each country is assigned a distinct fill color with 70% opacity.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/1aa64b0f8dd84944becf6afa815ae7e7?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}