This example shows a smiley face constructed with SVG shapes in a React application, rendered through D3’s `arc` generator for the mouth and basic circle elements for the face, eyes, and highlights. The face is centered using a group transform, with yellow fill and black stroke for the head, while the eyes include small white pupils for detail. The code relies on React for component rendering, D3 v6’s `arc` API to compute the mouth path, and SVG elements for all visual output. The composition uses fixed dimensions and offsets to position features symmetrically.