Examine source code of No More Brainrot

{
  "manifest_version": 2,
  "name": "No More Brainrot",
  "version": "1.0.1",
  "description": "Block YouTube Shorts and Instagram Reels to save you from brainrot content",
  "permissions": [
    "activeTab",
    "storage",
    "tabs",
    "webRequest",
    "webRequestBlocking",
    "*://www.youtube.com/*",
    "*://www.instagram.com/*",
    "*://*/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.youtube.com/*",
        "*://www.instagram.com/*",
        "*://youtube.com/*",
        "*://instagram.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "browser_action": {
    "default_title": "No More Brainrot",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/logo16.png",
      "32": "icons/logo32.png",
      "48": "icons/logo48.png",
      "128": "icons/logo128.png"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "icons": {
    "16": "icons/logo16.png",
    "32": "icons/logo32.png",
    "48": "icons/logo48.png",
    "128": "icons/logo128.png"
  },
  "web_accessible_resources": [
    "timer.html"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{859041c1-30f2-4a0b-b6e2-3011a7786b58}"
    }
  }
}