Examine source code of KeePassHelper Password Manager

{
  "manifest_version": 3,
  "version": "1.0.1",
  "name": "KeePassHelper Password Manager",
  "description": "__MSG_description__",
  "default_locale": "en",
  "permissions": [
    "storage",
    "activeTab",
    "scripting",
    "contextMenus"
  ],
  "optional_permissions": [
    "nativeMessaging"
  ],
  "optional_host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "service_worker": "worker.js",
    "scripts": [
      "data/passkey/passkey.create.js",
      "worker.js"
    ]
  },
  "action": {
    "default_popup": "/data/cmd/index.html"
  },
  "icons": {
    "16": "/data/icons/16.png",
    "32": "/data/icons/32.png",
    "48": "/data/icons/48.png",
    "64": "/data/icons/64.png",
    "128": "/data/icons/128.png",
    "256": "/data/icons/256.png",
    "512": "/data/icons/512.png"
  },
  "homepage_url": "https://webextension.org/listing/keepass-helper.html",
  "options_ui": {
    "page": "/data/options/index.html",
    "open_in_tab": true
  },
  "commands": {
    "_execute_action": {},
    "open-embedded": {
      "description": "Open credentials in the embedded mode (useful for popup windows) (does not yet work in Firefox browser)"
    },
    "generate-password": {
      "description": "Generate a Random Password"
    },
    "save-form": {
      "description": "Save a new Login Form in KeePass"
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "/data/cmd/index.html",
        "/data/save/index.html",
        "/data/safe/index.html"
      ],
      "matches": [
        "*://*/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{69ef9498-0139-43e4-97b8-942982ac9158}",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}