Examine source code of Discord Token Login

{
  "name": "Discord Token Login",
  "description": "login to discord with a token",
  "version": "0.2.0",
  "manifest_version": 2,
  "icons": {
    "16": "/icons/icon16.png",
    "48": "/icons/icon48.png",
    "128": "/icons/icon128.png"
  },
  "browser_action": {
    "default_title": "Discord Token Login",
    "default_icon": "/icons/icon48.png",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://discord.com/login"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "daniel4scratchhelp@gmail.com"
    }
  }
}