Examine source code of MathGate - Scroll Blocker

{
  "manifest_version": 2,
  "name": "MathGate - Scroll Blocker",
  "version": "1.1.0",
  "description": "Solve a math problem before scrolling to the next short. Includes trig, timers, and adjustable difficulty.",
  "permissions": [
    "activeTab",
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://www.tiktok.com/*",
        "*://tiktok.com/*",
        "*://www.instagram.com/*",
        "*://instagram.com/*",
        "*://www.youtube.com/shorts/*",
        "*://youtube.com/shorts/*",
        "*://www.reddit.com/*",
        "*://reddit.com/*",
        "*://www.twitter.com/*",
        "*://twitter.com/*",
        "*://www.x.com/*",
        "*://x.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "overlay.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "MathGate Settings"
  },
  "icons": {
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "mathgate-scroll-blocker@devextension",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}