This example generates a static smiley face centered on an SVG canvas, composed of simple shapes: a rounded orange rectangle, two black circles for eyes, and a pink mouth. The mouth and tongue are drawn as arc paths using D3’s `arc()` generator, which constructs the curved shapes with specified inner and outer radii and angular ranges. Rendered with React and D3 v7, the visualization demonstrates how to combine basic geometric drawing with D3’s path generation for idiomatic SVG styling.