Examine source code of Remove ChatGPT Info

{
  "manifest_version": 2,
  "name": "ChatGPT-WebUI-NoInfo",
  "version": "1.1",
  "description": "Removes the 'This is a free research preview' text.",
  "icons": {},
  "content_scripts": [
    {
      "matches": [
        "*://chat.openai.com/chat",
        "*://chat.openai.com/chat/*"
      ],
      "js": [
        "GPTChat_NoInfo.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{ceeaa501-ecd7-48a5-ad1e-fcb5999feea5}"
    }
  }
}