Animating the circles

Now we have all our circle pairs in place, it’s time to start animating them. I’m going to add the animation code. It may look a bit strange at first, but not to worry, I will explain it line by line:

            //MARK: - Animations
            .rotationEffect(.degrees(rotateInOut ? 90 : 0))
            .scaleEffect(scaleUpDown ? 1 : 1/4)
            .animation(Animation.easeInOut.              repeatForever(autoreverses: true).speed(1/8),               value: scaleInOut)
            .onAppear() {
  ...