Examine source code of Teamstack

{
  "name": "Teamstack",
  "author": "Teamstack",
  "version": "1.9.0",
  "description": "Teamstack is an identity access management platform that allows you to grow your team seamlessly by automating identity management.",
  "short_name": "Teamstack",
  "manifest_version": 2,
  "icons": {
    "16": "icons/logo_16.png",
    "25": "icons/logo_25.png",
    "32": "icons/logo_32.png",
    "48": "icons/logo_48.png",
    "64": "icons/logo_64.png",
    "128": "icons/logo_128.png"
  },
  "permissions": [
    "<all_urls>",
    "activeTab",
    "tabs",
    "contextMenus",
    "storage",
    "notifications"
  ],
  "web_accessible_resources": [
    "img/*",
    "pages/*",
    "JavaScript/*",
    "css/*"
  ],
  "browser_action": {
    "default_title": "Teamstack",
    "default_popup": "pages/popup.html",
    "default_icon": {
      "16": "icons/logo_16.png",
      "25": "icons/logo_25.png",
      "32": "icons/logo_32.png",
      "48": "icons/logo_48.png",
      "64": "icons/logo_64.png",
      "128": "icons/logo_128.png"
    }
  },
  "background": {
    "scripts": [
      "JavaScript/background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "js": [
        "JavaScript/content.js"
      ],
      "run_at": "document_end",
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true
    }
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'"
}