Examine source code of Calculator - NEO

{
  "manifest_version": 3,
  "name": "__MSG_extName__",
  "version": "1.0.0",
  "description": "__MSG_extDescription__",
  "browser_specific_settings": {
    "gecko": {
      "id": "calculator.neo@ersocon.net",
      "strict_min_version": "130.0"
    }
  },
  "default_locale": "en",
  "action": {
    "default_popup": "app.html",
    "default_icon": {
      "128": "images/icon-128.png"
    }
  },
  "icons": {
    "128": "images/icon-128.png"
  },
  "permissions": [],
  "web_accessible_resources": [
    {
      "resources": [
        "wasm/app.wasm",
        "index.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self'"
  }
}