Examine source code of Mock API Creator

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  "name": "Mock API Creator",
  "version": "1.1",
  "description": "Quickly create mock APIs for testing.",
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "32": "icons/logo_32.png",
      "64": "icons/logo_64.png",
      "128": "icons/logo_128.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{316b2b17-7f8b-4067-9a6e-5d17d2db5d8c}"
    }
  }
}