warning:
    rows: 6
    fill:
      item:
        material: GRAY_STAINED_GLASS_PANE
        quantity: 1
    buttons:
      message:
        item:
          material: YELLOW_STAINED_GLASS_PANE
          quantity: 1
        slot: 22
      confirm:
        item:
          material: LIME_STAINED_GLASS
          quantity: 1
        slot: 40