This example renders a stylized smiley face as a static SVG visualization built with React and D3. The face features a yellow circle with a thick black outline, two eyes with green pupils and brown highlights, eyebrows, and a mouth drawn using D3’s `arc()` generator. The code constructs the shape using SVG primitives like `circle`, `line`, `ellipse`, and `path` within a React component. All geometry is positioned relative to a central coordinate system, and the visualization does not include any interactive or animated behavior.