Examine source code of Planndu Notes Extension

{
  "manifest_version": 3,
  "name": "Planndu Notes Extension",
  "version": "0.0.2",
  "description": "A simple open source note taking extension. Capture ideas fast, save text, and stay organized with Planndu.",
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "permissions": [
    "storage"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "planndu-notes@planndu.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "opt_in": [],
        "telemetry": "none",
        "experiments": "none"
      },
      "strict_min_version": "109.0"
    }
  },
  "data_collection": {
    "optional": [],
    "required": []
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'none';"
  }
}