A smiling face rendered as a simple data visualization uses React and ReactDOM to create an SVG graphic. The code computes the viewport dimensions to center a yellow circle with a black outline, adds two solid black eyes, and omits a mouth. The face is drawn using SVG circle elements within a transformed group, with coordinates and radii set as constants. The example demonstrates static SVG rendering through React's declarative component structure, where the entire graphic is defined in JSX and mounted to the DOM.