{"version":"1.0","type":"rich","title":"Area Chart Activity 8","description":"This area chart displays the cost of sales from 2000 to 2013, with a green filled region beneath a black curved line. The visualization uses D3 v5’s `scaleTime`, `scaleLinear`, `area`, and `line` generators with `curveBasis` to create the smoothed path. The SVG rendering includes gridlines via `axisBottom` and `axisLeft`, with tick labels formatted using `format('.3s')`. Data is loaded as CSV from a GitHub gist, parsed with `csv()`, and dates are converted using the native `Date` constructor. Axis labels and titles are styled via CSS classes.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/397485e738b34391aa9682729a977fd3?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}