{"version":"1.0","type":"rich","title":"World Population Area Chart","description":"This area chart visualizes world population over time using data from the United Nations’ 2017 World Population Prospects (VizHub dataset), with a maroon filled path under a curve. The SVG render uses D3 v5 APIs including `scaleTime`, `scaleLinear`, `area`, `curveBasis`, `axisBottom`, and `axisLeft` to build axes with grid lines and custom tick formatting (e.g., abbreviating billions). It also demonstrates axis-label placement, margin-based layout, and title styling via CSS classes.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/43174aea089141d6aca05f7d713e96e1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}