Examine source code of Quest Schedule Exporter

{
  "manifest_version": 2,
  "name": "Quest Schedule Exporter",
  "description": "Export your uWaterloo Quest schedule to iCalendar (.ics) since Quest doesn't support it and has a terrible UI. One-click export",
  "version": "1.0.1",
  "icons": {
    "16": "/icons/16.png",
    "32": "/icons/32.png",
    "48": "/icons/48.png",
    "96": "icon/96.png",
    "128": "/icons/128.png"
  },
  "category": "productivity",
  "homepage_url": "https://github.com/fel1x-developer/Quest-Schedule-Exporter-Browser-Extension",
  "lang": "en",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Quest Schedule Exporter",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.google.com/*"
      ],
      "js": [
        "content-scripts/content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d6fd98ed-f01e-4d4b-b8e2-7b9ce0e53b57}"
    }
  }
}