A yellow smiley face rendered as SVG via React components shows geometric shapes: a circle background, two eyes, and an arc-based mouth. Each facial feature is a separate React component—BackgroundCircle, Eyes, and Mouth—composed within a FaceContainer that applies a centered translate transform. The Mouth uses d3.arc with specified inner and outer radii and start/end angles to draw the smile. Hardcoded dimensions for the face, eyes, and stroke width define the static visualization.