{"version":"1.0","type":"rich","title":"Shapes and Colors with SVG and CSS","description":"Fifty circles arranged vertically cycle horizontally across the screen in an animated loop. Each circle’s fill color transitions from light yellow to dark navy based on its vertical position, using a linear scale with HSL interpolation. The example demonstrates SVG shape rendering and CSS styling, with animations driven by D3 v4’s `transition` and `d3.active()`. The code uses `d3.scalePoint` for layout and `d3.scaleLinear` for color mapping, all within a single SVG canvas.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"","width":960,"height":500,"cache_age":3600}