Examine source code of Sapphire Mountain

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Sapphire Mountain",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left top"
      ],
      "additional_backgrounds_tiling": [
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgb(29, 38, 71)",
      "toolbar_text": "rgb(228, 228, 255)",
      "frame": "rgb(11, 15, 49)",
      "tab_background_text": "rgb(235, 235, 255)",
      "toolbar_field": "rgb(11, 15, 49)",
      "toolbar_field_text": "rgb(228, 231, 255)",
      "tab_line": "rgb(19, 26, 64)",
      "popup": "rgb(41, 47, 79)",
      "popup_text": "rgb(221, 224, 255)",
      "ntp_background": "rgb(16, 20, 43)",
      "popup_border": "rgb(41, 47, 79)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(19, 26, 64)",
      "toolbar_top_separator": "rgb(29, 38, 71)",
      "tab_loading": "rgb(19, 26, 64)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ae95fab9-b055-4111-b7ea-0fbc49d60960}"
    }
  }
}