Examine source code of Gradescope to Cal

{
  "manifest_version": 2,
  "name": "Gradescope to Cal",
  "version": "2.0.9",
  "description": "Automatically sync Gradescope assignments to Google Calendar (Firefox compatible)",
  "browser_specific_settings": {
    "gecko": {
      "id": "gradescope-to-cal@gmail.com",
      "strict_min_version": "102.0"
    }
  },
  "permissions": [
    "storage",
    "tabs",
    "activeTab",
    "identity",
    "alarms",
    "notifications",
    "*://*.gradescope.com/*",
    "https://accounts.google.com/*",
    "https://www.googleapis.com/*"
  ],
  "background": {
    "scripts": [
      "lib/browser-polyfill.js",
      "utils/browserDetector.js",
      "utils/icalGenerator.js",
      "auth/eventCache.js",
      "auth/tokenManager.js",
      "auth/authenticationManager.js",
      "auth/calendarAPIClient.js",
      "auth/autoSyncManager.js",
      "auth/onboardingManager.js",
      "auth/smartSyncManager.js",
      "auth/backgroundPollingManager.js",
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.gradescope.com/*"
      ],
      "js": [
        "lib/browser-polyfill.js",
        "utils/browserDetector.js",
        "utils/dateParser.js",
        "utils/gradeExtractor.js",
        "assignmentCategorizer.js",
        "utils/assignmentParser.js",
        "utils/pageDetector.js",
        "utils/testFunctions.js",
        "utils/pinBannerInjector.js",
        "contentScript.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Gradescope to Cal",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png"
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "web_accessible_resources": [
    "options.html",
    "welcome.html",
    "storage-viewer.html"
  ]
}