Examine source code of Local Text Optimizer

{
  "manifest_version": 2,
  "name": "Local Text Optimizer",
  "version": "1.0.1",
  "description": "Offline text formatting and cleanup toolkit.",
  "browser_action": {
    "default_title": "Text Optimizer",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "local-text-optimizer-6a343aed-b37c-4c86-b433-5fcab4716fe1@example.com",
      "strict_min_version": "58.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}