Fork of Smiley Face Part III
This example shows a simple smiley face rendered as an SVG using React components for the background circle, eyes, and mouth. The face is centered on a 960x500 canvas, with a yellow circle outlined in black, two offset black eyes, and a mouth drawn as an arc. The code uses React for component structure and D3’s `arc` function to generate the mouth path, with all positioning defined by fixed constants. The visualization demonstrates a declarative mix of React and D3 for static SVG drawing.