{"version":"1.0","type":"rich","title":"D3.js","description":"A smiley face drawn with D3.js animates its eyebrows in a looping vertical motion. The SVG face uses simple shapes: a yellow circle for the head, two circles for the eyes, rectangles for the eyebrows, and a D3 arc for the mouth. The animation is driven by chained `transition().duration()` calls on the eyebrow group, moving it up and down. The code demonstrates fundamental DOM manipulation via `select` and `append`, with hardcoded dimensions for the 960×500 viewport.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/7a8e7be10d58422fb6c4da8a0e64fa4b?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}