Examine source code of Aleph Zero Signer

{
  "author": "Aleph Zero",
  "description": "Manage your Aleph Zero accounts and sign dApp transactions in a user-friendly way.",
  "homepage_url": "https://alephzero.org/",
  "name": "Aleph Zero Signer",
  "short_name": "Aleph Zero Signer",
  "manifest_version": 3,
  "permissions": [
    "storage",
    "tabs"
  ],
  "action": {
    "default_title": "Aleph Zero Signer",
    "default_popup": "index.html"
  },
  "content_scripts": [
    {
      "js": [
        "content.js"
      ],
      "matches": [
        "http://localhost/*",
        "http://127.0.0.1/*",
        "https://*/*"
      ],
      "run_at": "document_start"
    }
  ],
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "64": "images/icon-64.png",
    "128": "images/icon-128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "page.js"
      ],
      "matches": [
        "http://localhost/*",
        "http://127.0.0.1/*",
        "https://*/*"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'"
  },
  "version": "1.1.0",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "signer-webextension@alephzero.org",
      "strict_min_version": "109.0"
    }
  }
}