This example visualizes a stylized smiley face built from basic SVG shapes using React components and D3’s `arc` generator. The face consists of a yellow background circle, two black eyes positioned by offsets, and a smile drawn as an arc with configurable inner radius and stroke width. The `FaceContainer` creates an SVG canvas and translates its coordinate system to center the face via a `<g>` transform. The code demonstrates reusable React components for composition and D3’s arc API for path generation.