This fork of "Let's Make a Face" animates a cartoon face with blinking eyebrows and a fixed smiling mouth, all rendered as SVG. The code uses D3 v6 selections and transitions, with `transition().duration()` to shift eyebrow rectangles up and down repeatedly. The face is composed of D3 shapes—a circle for the head, circles for eyes, rects for brows, and a path generated by the `d3.arc` API for the mouth. The entire face is centered via a group transformation, with static styling, including an orange head and black features.