Data Visualization
A solitary yellow circle with a black outline sits centered on a blank SVG canvas, rendered at 960 by 500 pixels. The example demonstrates the minimal setup for a React-based visualization, using `ReactDOM.render` to mount a single SVG `<circle>` element. The code imports React and ReactDOM, defines a functional component returning the SVG markup, and loads the production builds of React 16.9.0 from a CDN. This static shape serves as a starting point, with a commented-out section hinting at a future smiley face with two additional eye circles.