{
  "anvil_screen": {
    "variables": [
      {
        "requires": "$desktop_screen",
        "$screen_content": "anvil_dx.center_screen",
        "$screen_bg_content": "anvil_dx.full_screen"
      },
      {
        "requires": "$pocket_screen",
        "$screen_content": "anvil_pocket.anvil_panel"
      }
    ]
  }
}