Examine source code of Bulk Amazon authorization MV2

{
  "manifest_version": 2,
  "version": "3.1.7",
  "name": "__MSG_appName__",
  "description": "__MSG_appDesc__",
  "default_locale": "en",
  "icons": {
    "16": "icons/icon_16.png",
    "32": "icons/icon_32.png",
    "48": "icons/icon_48.png",
    "128": "icons/icon_128.png"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "browser_action": {
    "default_icon": "icons/icon_48.png",
    "default_title": "__MSG_appName__",
    "default_popup": "popup.html"
  },
  "options_ui": {
    "page": "popup.html"
  },
  "content_scripts": [
    {
      "js": [
        "js/jquery.js",
        "js/contentScript.js"
      ],
      "css": [
        "css/materialdesignicons.min.css",
        "css/contentScript.css"
      ],
      "run_at": "document_idle",
      "all_frames": true,
      "matches": [
        "*://sellercentral.amazon.com/product*"
      ]
    }
  ],
  "permissions": [
    "storage",
    "unlimitedStorage",
    "*://sellercentral.amazon.com/product*"
  ],
  "web_accessible_resources": [
    "*.eot",
    "*.ttf",
    "*.woff",
    "*.woff2"
  ],
  "content_security_policy": "script-src 'self';  object-src 'none'",
  "browser_specific_settings": {
    "gecko": {
      "id": "{bea0589d-8c33-4f3d-863d-915cdd4e4a5e}"
    }
  }
}