Examine source code of Tetofox

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Tetofox",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(123, 26, 26)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(47, 47, 47)",
      "tab_background_text": "rgb(203, 203, 203)",
      "toolbar_field": "rgb(138, 73, 73)",
      "toolbar_field_text": "rgb(219, 183, 182)",
      "tab_line": "rgb(157, 106, 106)",
      "popup": "rgb(138, 73, 73)",
      "popup_text": "rgb(219, 183, 182)",
      "frame_inactive": "rgb(47, 47, 47)",
      "icons": "rgb(219, 183, 182)",
      "ntp_background": "rgb(138, 73, 73)",
      "ntp_text": "rgb(219, 183, 182)",
      "tab_selected": "rgb(138, 73, 73)",
      "tab_loading": "rgb(157, 106, 106)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ac65e36f-0fa6-4c11-a1d5-ba36e1e52c27}"
    }
  }
}