Examine source code of MSF Metal Gear Solid

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "MSF Metal Gear Solid",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(183, 186, 171, 0.1)",
      "toolbar_text": "rgb(235, 178, 29)",
      "frame": "rgb(39, 40, 39)",
      "tab_background_text": "rgb(249, 250, 251)",
      "toolbar_field": "rgba(39, 40, 39, 0.8)",
      "toolbar_field_text": "rgb(235, 178, 29)",
      "tab_line": "rgb(235, 178, 29)",
      "popup": "rgb(39, 40, 39)",
      "popup_text": "rgb(235, 178, 29)",
      "icons": "rgb(249, 250, 251)",
      "ntp_background": "rgb(39, 40, 39)",
      "ntp_text": "rgb(235, 178, 29)",
      "toolbar_top_separator": "rgba(39, 40, 39, 0)",
      "tab_loading": "rgb(235, 178, 29)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{058ed63c-0449-48bc-b951-a38c442e1923}"
    }
  }
}