{"version":"1.0","type":"rich","title":"Line Chart","description":"This line chart displays the annual number of Facebook users from 2008 to 2017. It uses D3 v5’s `scaleTime`, `scaleLinear`, `axisBottom`, `axisLeft`, and `line` to render an SVG with labeled axes and a red, bold stroke. The data is loaded via `d3.csv` from a GitHub gist, with year values parsed into Date objects and user counts converted to numbers. The chart includes a title, axis labels, and grid lines styled via CSS.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/dedae9f475934026984f7ac08769ac6f?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}