Examine source code of GrokXyz

{
  "manifest_version": 2,
  "name": "GrokXyz",
  "version": "1.0",
  "description": "Adds a button to navigate to https://x.com/i/grok and modifies the page layout.",
  "icons": {
    "32": "icon/grokXyz.png"
  },
  "browser_action": {
    "default_icon": "icon/grokXyz.png",
    "default_title": "Go to Grok"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "https://x.com/i/grok*"
      ],
      "js": [
        "contentScript.js"
      ]
    }
  ],
  "permissions": [
    "tabs"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{12e9b736-1150-459d-bf02-0bf8af834870}"
    }
  }
}