d3 testground
This example demonstrates a static SVG face created with D3 version 6, showing three circles arranged as a large yellow head with two smaller black eyes. The rendering uses plain SVG elements inside an HTML page, with D3 loaded via CDN and the `select` API imported from `d3`. The code includes a YouTube tutorial link, indicating its purpose as a learning sandbox. No interactive behavior or data binding occurs; the visualization relies solely on hardcoded circle attributes.