Examine source code of Love air

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Love air",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgb(255, 194, 194)",
      "toolbar_text": "rgb(225, 20, 60)",
      "frame": "rgb(255, 237, 230)",
      "tab_background_text": "rgb(60, 77, 130)",
      "toolbar_field": "rgb(255, 255, 218)",
      "toolbar_field_text": "rgb(0, 72, 129)",
      "tab_line": "rgb(255, 240, 56)",
      "popup": "rgb(255, 237, 230)",
      "popup_text": "rgb(202, 22, 103)",
      "tab_loading": "rgb(255, 240, 56)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bb23519e-441f-4f5b-beca-96842cc93914}"
    }
  }
}