Examine source code of Outer Space

{
  "manifest_version": 2,
  "version": "2.69",
  "name": "Outer Space",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(15, 25, 40, 0.69)",
      "toolbar_text": "rgb(169, 0, 255)",
      "frame": "rgb(31, 34, 54)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(0, 30, 47)",
      "toolbar_field_text": "rgb(0, 255, 255)",
      "tab_line": "rgb(0, 255, 255)",
      "popup": "rgb(15, 25, 40)",
      "popup_text": "rgb(0, 255, 255)",
      "button_background_active": "rgba(69, 147, 200, 0.5)",
      "button_background_hover": "rgba(69, 147, 200, 0.3)",
      "ntp_text": "rgb(0, 0, 0)",
      "popup_border": "rgb(169, 0, 255)",
      "popup_highlight_text": "rgb(0, 255, 255)",
      "popup_highlight": "rgba(0, 255, 255, 0.2)",
      "tab_selected": "rgba(0, 30, 47, 0)",
      "tab_text": "rgb(0, 255, 255)",
      "toolbar_field_border": "rgb(0, 255, 255)",
      "toolbar_field_focus": "rgb(30, 0, 47)",
      "toolbar_field_highlight": "rgba(69, 147, 200, 0.69)",
      "toolbar_field_text_focus": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgb(169, 0, 255)",
      "tab_loading": "rgb(0, 255, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3db4cb1a-47a6-4304-872f-b66dc669d52c}"
    }
  }
}