Examine source code of ChatGPT Widener

{
  "manifest_version": 2,
  "name": "ChatGPT Widener",
  "version": "1.1",
  "description": "Widens the text input fields on the ChatGPT Web UI. They are more usable this way for wide technical content, like coding.",
  "permissions": [
    "activeTab",
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://chat.openai.com/c/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{150454e9-9082-4278-96ce-abe4720017cb}"
    }
  }
}