Examine source code of Grok Foo

{
  "manifest_version": 2,
  "name": "Grok Foo",
  "version": "0.1",
  "description": "Select text and send it to Grok with commands",
  "permissions": [
    "tabs",
    "contextMenus",
    "https://x.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "48": "logo.jpg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{16916962-ae7f-4d41-a925-0d755c7c9eb9}"
    }
  }
}