Examine source code of extension web app

{
  "manifest_version": 3,
  "name": "extension web app",
  "version": "1.0.0",
  "description": "A secure, privacy-first local notepad utility that saves your text directly within the browser's storage.",
  "icons": {
    "16": "icon.png",
    "48": "icon.png",
    "128": "icon.png"
  },
  "permissions": [
    "storage"
  ],
  "action": {
    "default_icon": "icon.png",
    "default_title": "web app",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "webabbyweb4note@local-extension.app",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}