Examine source code of Course Label Ninova

{
  "name": "Course Label",
  "version": "1.0.0",
  "author": "Fatih Mustafa Bucak",
  "description": "Label courses in Ninova",
  "permissions": [],
  "options_ui": {
    "page": "info.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://ninova.itu.edu.tr/*"
      ],
      "js": [
        "background.js"
      ]
    }
  ],
  "icons": {
    "16": "images/icons16.png",
    "32": "images/icons32.png",
    "48": "images/icons48.png",
    "128": "images/icons128.png"
  },
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "{141285e1-0088-42ee-a823-9eeb3231dc6f}"
    }
  }
}