app/pb_kits/playbook/pb_nav/docs/_nav_vertical_default_swift

nav-vertical-default

@State private var selectedVDefault: Int = 1

PBNav(
        selected: $selectedVDefault,
        variant: .normal,
        orientation: .vertical,
        title: "Menu"
      ) {
        PBNavItem("Photos")
        PBNavItem("Music")
        PBNavItem("Video")
        PBNavItem("Files")
      }