Examine source code of NLToken

{
  "name": "__MSG_appName__",
  "version": "2.1.1",
  "minimum_chrome_version": "40.0",
  "manifest_version": 2,
  "description": "__MSG_appDesc__",
  "default_locale": "hu",
  "icons": {
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*",
        "file:///*"
      ],
      "exclude_matches": [
        "*://*.overdrive.com/*",
        "*://*/*.svg",
        "https://ebs.instructure.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    },
    {
      "matches": [
        "file:///*",
        "*://*/*"
      ],
      "js": [
        "keygen_content.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "nativeMessaging",
    "https://*/"
  ],
  "applications": {
    "gecko": {
      "id": "{F3BE4768-1AA0-11EB-802D-1836FC2CA371}"
    }
  }
}