This example shows a yellow smiley face composed of SVG shapes, including a circular head, two eyes, and a curved mouth drawn as an arc. The composition is centered within a 960x500 viewport, with all elements positioned relative to a central translation point. The code integrates React for component rendering and D3’s `arc` generator to define the mouth’s path geometry. ReactDOM renders the SVG tree, while D3’s `arc` calculates the mouth’s inner and outer radii, as well as its start and end angles. All styling and coordinates are hardcoded in the JavaScript source.