Examine source code of Simple Tab Groups

{
  "manifest_version": 2,
  "name": "Simple Tab Groups",
  "version": "1.0",
  "description": "Organize tabs into simple groups and switch between them.",
  "permissions": [
    "tabs",
    "storage"
  ],
  "browser_action": {
    "default_title": "Simple Tab Groups",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "simple-tab-groups-r4nd0m@extension",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}