Examine source code of Quick Focus Note

{
  "manifest_version": 3,
  "name": "Quick Focus Note",
  "version": "1.1",
  "description": "Minimalist extension for quick notes. Everything is saved automatically.",
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "quick-focus-note@kibar.dev",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "icons": {
    "48": "icon.png",
    "128": "icon128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "32": "icon.png",
      "48": "icon.png"
    }
  }
}