This example shows a yellow smiley face drawn using D3.js and React with SVG rendering, featuring two eyes and an arc-based mouth. The code uses `d3.select` and `d3.arc` to construct the facial features, positioning circles for the eyes and a path for the mouth on a 960×500 canvas. The face is centered via a translation transform, with all shapes styled using SVG attributes like `fill`, `stroke`, and `r`.