This example draws a cat-themed smiley face in SVG, using a sky-blue circle as the head, pink eyes with brown pupils, purple ears built from arcs, and a purple curved mouth. It is built with React and D3 v7, leveraging D3’s `arc` generator to construct the mouth, eye highlights, and ear shapes. The code positions elements via SVG transforms and translations, and renders the face at a fixed 850×455 viewport.