Examine source code of Discord Token Login

{
  "manifest_version": 2,
  "name": "Discord Token Login",
  "version": "1.0.1",
  "description": "Login to Discord using your token",
  "browser_specific_settings": {
    "gecko": {
      "id": "discord-token-login@extension.com",
      "strict_min_version": "109.0"
    }
  },
  "permissions": [
    "storage",
    "activeTab",
    "tabs",
    "*://*.discord.com/*"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.discord.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ]
}