Examine source code of Mando

{
  "manifest_version": 2,
  "version": "3",
  "name": "Mando-1",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(74, 68, 54, 0)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(15, 130, 127)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(106, 81, 23, 0.75)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(161, 120, 37)",
      "popup": "rgb(74, 68, 54)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgba(109, 85, 35, 0.88)",
      "button_background_hover": "rgb(138, 100, 22)",
      "ntp_background": "rgba(221, 213, 218, 0.18)",
      "popup_border": "rgb(255, 255, 255)",
      "popup_highlight_text": "rgba(255, 255, 255, 0.91)",
      "popup_highlight": "rgba(138, 93, 28, 0.91)",
      "sidebar_border": "rgba(255, 255, 255, 0.91)",
      "sidebar_highlight": "rgb(55, 46, 25)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(74, 68, 54)",
      "tab_loading": "rgba(76, 91, 91, 0.5)",
      "tab_selected": "rgba(74, 68, 54, 0.76)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_field_border_focus": "rgba(255, 255, 255, 0.72)",
      "toolbar_field_border": "rgb(255, 255, 255)",
      "toolbar_field_focus": "rgba(181, 181, 181, 0.84)",
      "toolbar_field_highlight_text": "rgb(255, 255, 255)",
      "toolbar_field_highlight": "rgb(67, 67, 65)",
      "toolbar_field_separator": "rgba(255, 241, 0, 0)",
      "toolbar_field_text_focus": "rgba(255, 241, 0, 0)",
      "toolbar_top_separator": "rgba(255, 255, 255, 0)",
      "toolbar_vertical_separator": "rgba(255, 241, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ef24aa3e-9ccd-4ec2-8174-ebb9daadac35}"
    }
  }
}