Examine source code of ChatGPT Full Width

{
  "manifest_version": 2,
  "name": "ChatGPT Full Width",
  "version": "1.0",
  "description": "Make ChatGPT output use the full width of the available space.",
  "icons": {
    "48": "icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://chatgpt.com/*"
      ],
      "css": [
        "style.css"
      ]
    }
  ],
  "permissions": [
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{de829093-56ac-4b04-814d-4a064d6b6ec1}"
    }
  }
}