aadhi
This example draws a stylized smiley face using D3 v7, rendering a yellow circle with eyes, eyebrows, and an arc-based mouth as SVG elements. The code imports `select` and `arc` from the D3 module and uses `transition().duration()` to animate the eyebrows moving up and down repeatedly. The face is centered via an SVG group transform, with static shapes positioned by absolute pixel coordinates on a 960×500 canvas.