Examine source code of Brainly Unlocker

{
  "name": "Brainly Unlocker",
  "version": "1.3",
  "manifest_version": 2,
  "description": "Dodatek odblokowujący pytania w darmowej wersji Brainly",
  "content_scripts": [
    {
      "matches": [
        "*://*.brainly.pl/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "addon-style.css"
      ]
    }
  ],
  "permissions": [
    "storage"
  ]
}