Examine source code of MyLMS Timetable Plus

{
  "name": "MyLMS Timetable Plus",
  "description": "Enhance your MyLMS Timetable.",
  "author": "Kagiso Marvin Molekwa",
  "version": "0.9.0",
  "manifest_version": 3,
  "permissions": [
    "scripting"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon-16.png",
      "32": "icon-32.png"
    }
  },
  "icons": {
    "16": "icon-16.png",
    "32": "icon-32.png",
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://mylms.vossie.net/mytimetable/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{47e1fb63-d08d-4ce1-9868-708489c237fd}",
      "strict_min_version": "42.0"
    }
  }
}