This example shows a yellow smiley face rendered as an SVG using React components. The face consists of a background circle, two eyes, and an arc-based mouth, all positioned in a central group. It uses D3’s `arc` generator to define the mouth shape, with React managing the component structure and props for coordinates and radii. Rendering relies on ReactDOM to mount the app into a root div, with D3 v6 loaded externally for the arc calculation. The visualization demonstrates static vector graphics with no interactivity or data binding.