Examine source code of airplane1

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "airplane",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat-y"
      ]
    },
    "colors": {
      "toolbar": "rgba(70, 14, 96, 0.38)",
      "toolbar_text": "rgb(207, 175, 207)",
      "frame": "rgb(48, 24, 58)",
      "tab_background_text": "rgb(207, 175, 207)",
      "toolbar_field": "rgb(12, 0, 1)",
      "toolbar_field_text": "rgb(207, 175, 207)",
      "tab_line": "rgb(232, 8, 232)",
      "popup": "rgb(12, 0, 1)",
      "popup_text": "rgb(232, 8, 232)",
      "tab_loading": "rgb(232, 8, 232)"
    }
  }
}