Examine source code of IXL Hacks

{
  "manifest_version": 3,
  "name": "ixl hacks",
  "description": "ixl hacks",
  "version": "1.0",
  "browser_specific_settings": {
    "gecko": {
      "id": "@ixl-hacks",
      "strict_min_version": "58.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.ixl.com/*"
      ],
      "js": [
        "ixl.js"
      ]
    }
  ]
}