Examine source code of Multi Search + AI NewTab

{
  "manifest_version": 2,
  "name": "Multi Search NewTab",
  "description": "Boost your search & productivity with simultaneous interaction from multiple AIs & Search Engines like ChatGPT, Google, Gemini, etc.",
  "version": "1.0.1",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_action": {
    "default_title": "Multi Search + AI NewTab",
    "default_icon": "icons/icon-hq.png"
  },
  "chrome_url_overrides": {
    "newtab": "new-tab/index.html"
  },
  "omnibox": {
    "keyword": "ms"
  },
  "permissions": [
    "storage",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "mobileUA",
        "enabled": true,
        "path": "rules.json"
      }
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://copilot.microsoft.com/*",
        "*://chatgpt.com/*",
        "*://gemini.google.com/*",
        "*://poe.com/*",
        "*://chat.deepseek.com/*",
        "*://yep.com/*",
        "*://you.com/*"
      ],
      "all_frames": true,
      "run_at": "document_end",
      "js": [
        "content-script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{f6f74a11-b002-4cc4-a096-efc75436e43e}",
      "strict_min_version": "113.0"
    }
  }
}