Examine source code of PwMgr Connect

{
  "manifest_version": 3,
  "name": "PwMgr Connect",
  "short_name": "PwMgr",
  "description": "Autofill from your local PwMgr vault. Talks only to the PwMgr desktop app on this machine — no servers, no telemetry.",
  "version": "1.5.0",
  "author": "Catualus",
  "homepage_url": "https://github.com/Catualus/PwMgr-Releases",
  "permissions": [
    "nativeMessaging",
    "scripting",
    "contextMenus",
    "storage",
    "webAuthenticationProxy"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "formfill.js",
        "content.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_title": "PwMgr — show matches for this page",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Alt+Shift+L"
      }
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "pwmgr@catualus.dev",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}