Examine source code of PPLIO Time Tracker

{
  "manifest_version": 3,
  "name": "PPLIO Time Tracker",
  "description": "A web based time tracker for PPLIO - a tool designed to build high performing teams in organizations.",
  "version": "3.4.0.0",
  "icons": {
    "128": "assets/pplio_128.png"
  },
  "permissions": [
    "tabs",
    "storage",
    "alarms",
    "scripting",
    "idle",
    "notifications"
  ],
  "background": {
    "scripts": [
      "config.js",
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5526F0CA-0BCC-4CAE-86EE-3D7BFD011E6B}"
    }
  },
  "action": {
    "default_popup": "index.html"
  },
  "host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://app.pplio.com/*"
      ],
      "js": [
        "token-injector.js"
      ],
      "run_at": "document_start"
    }
  ]
}