Examine source code of Twetch Wallet

{
  "manifest_version": 2,
  "name": "Twetch Wallet",
  "short_name": "twetch-wallet",
  "version": "0.1.9",
  "description": "Freedomware™ wallet for crypto and NFTs",
  "content_security_policy": "script-src 'self' 'wasm-eval'; object-src 'self'",
  "icons": {
    "128": "app-icon.png"
  },
  "permissions": [
    "storage",
    "activeTab"
  ],
  "background": {
    "scripts": [
      "app/background.js"
    ]
  },
  "browser_action": {
    "default_title": "Twetch Wallet",
    "default_popup": "index.html",
    "default_icon": "app-icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*",
        "http://*/*",
        "file://*/*"
      ],
      "js": [
        "app/content-script.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    "app/inpage.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{49214f4a-2f8b-44c9-8cb2-0184fee5c314}"
    }
  }
}