Examine source code of Mandiant Advantage

{
  "manifest_version": 2,
  "version": "3.2.3",
  "name": "Mandiant Advantage | Threat Intelligence",
  "short_name": "Investigate",
  "description": "Provides up-to-the-minute access to Mandiant Threat Intelligence for web-based content and applications.",
  "icons": {
    "16": "img/16.png",
    "32": "img/32.png",
    "48": "img/48.png",
    "128": "img/128.png",
    "192": "img/192.png"
  },
  "background": {
    "persistent": false,
    "scripts": [
      "browser-polyfill.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "app.css"
      ],
      "js": [
        "browser-polyfill.js",
        "app.js"
      ]
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "app.css"
      ],
      "js": [
        "browser-polyfill.js",
        "scanAndMark.js"
      ],
      "all_frames": true
    }
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "options_ui": {
    "page": "options.html"
  },
  "browser_action": {
    "default_popup": "popup.html"
  },
  "permissions": [
    "identity",
    "storage",
    "tabs",
    "history",
    "<all_urls>"
  ],
  "web_accessible_resources": [
    "img/*",
    "indicators/*",
    "industriesIcons/*",
    "motivationsIcons/*",
    "app.css"
  ],
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "{b9fb39d7-3fff-4e99-9d18-f91cff58b1ca}"
    }
  }
}