Smiley Face
This example renders a classic yellow smiley face as a static SVG graphic using React and D3. The face is constructed from two circular eyes, an elliptical mouth, and a decorative eyelash path, all positioned around the canvas center. The code leverages React's declarative JSX syntax to define shapes, while D3's `arc` helper generates the mouth's curved path data. The SVG output is created with precise dimensions and stroke properties, resulting in a clean, scalable vector illustration.