Examine source code of Bache KidZania

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Bache KidZania",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg",
        "images/1.png",
        "images/2.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center",
        "center center",
        "right bottom"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat",
        "no-repeat",
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(254, 190, 16)",
      "toolbar_text": "rgb(127, 185, 208)",
      "frame": "rgb(251, 215, 122)",
      "tab_background_text": "rgb(2, 138, 197)",
      "toolbar_field": "rgb(251, 215, 122)",
      "toolbar_field_text": "rgb(127, 185, 208)",
      "tab_line": "rgb(77, 70, 135)",
      "popup": "rgba(127, 185, 208, 0.5)",
      "popup_text": "rgb(77, 70, 135)",
      "tab_loading": "rgb(77, 70, 135)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3ae78990-6037-4e52-b4f2-cb99ff072049}"
    }
  }
}