play planes below the swapchain's plane will be visible outside the rectangle. If there are no planes below the swapchain's, the area outside the specified rectangle will be black. If portions of the specified rectangle are outside of the display's visible region, pixels mapping only to those portions of the rectangle will be discarded.</vk-property-description>
      </vk-property-entry>
      <vk-property-entry>
        <vk-property-prototype>VkDisplayPresentInfoKHR.prototype.<vk-prototype-name>persistent