app/pb_kits/playbook/pb_nav/docs/_nav_horizontal_default_swift

nav-horizontal-default

 @State private var selectedHDefault: Int = 1

 PBNav(
          selected: $selectedHDefault,
          variant: .normal,
          orientation: .horizontal
        ) {
          PBNavItem("Photos")
          PBNavItem("Music")
          PBNavItem("Video")
          PBNavItem("Files")
        }