Fork of Let's Make a Face Part I
This example shows a simple smiley face built from reusable React components, rendering an SVG scene of a yellow circle with two eyes and a mouth. The code defines separate components for the background circle, eyes, and mouth, with the mouth drawn using the D3 `arc()` generator to create a curved path. The face is centered using an SVG `<g>` transform, and the components receive positioning and sizing values as props. The visualization uses React for component composition and D3 v7 for path generation within an SVG rendering approach.