Examine source code of 11 10

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "11 10",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(92, 191, 255)",
      "toolbar_text": "rgb(0, 218, 255)",
      "frame": "rgb(0, 87, 105)",
      "tab_background_text": "rgb(211, 218, 255)",
      "toolbar_field": "rgb(0, 120, 255)",
      "toolbar_field_text": "rgb(0, 3, 150)",
      "tab_line": "rgb(0, 0, 0)",
      "popup": "rgb(200, 251, 255)",
      "popup_text": "rgb(0, 91, 190)",
      "tab_loading": "rgb(0, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{970f6494-3862-4303-adeb-0573e21d7876}"
    }
  }
}