Reserved Regions

var body: some View {
    GeometryReader { proxy in
        ZStack(alignment: .topLeading) {
            ForEach(proxy.reservedRegions(kind: .division)) { region in
                regionView(region, color: .blue)
            }

            ForEach(proxy.reservedRegions(kind: .occlusion)) { region in
                regionView(region, color: .orange)
            }
        }
    }
}

private func regionView(_ region: ReservedRegion, color: Color) -> some View {
    Rectangle()
        .fill(color)
        .frame(width: region.frame.width, height: region.frame.height)
        .offset(x: region.frame.minX, y: region.frame.minY)
}