{"version":"1.0","type":"rich","title":"D3 Starter prueba","description":"A D3 v6 starter demonstrates basic SVG drawing and animation by rendering a yellow smiley face with animated eyebrows. The page builds the face using D3 selection and arc methods, including `d3.select`, `append`, and `d3.arc` for the mouth, while applying circular and rectangular shapes for eyes and brows. Two eyebrow rectangles use chained `transition().duration()` calls to move up and down over two seconds each, creating a looping effect. The example uses an inline SVG canvas of 960 by 500 pixels and serves as a minimal template for learning D3’s core update and transition patterns.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"","width":960,"height":500,"cache_age":3600}