Examine source code of BigBobux

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "BigBobux",
  "version": "0.5",
  "description": "Fakes your Robux",
  "icons": {
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "options_ui": {
    "page": "options_page.html",
    "open_in_tab": false
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_title": "Click to access settings."
  },
  "author": "Leon",
  "content_scripts": [
    {
      "matches": [
        "*://*.roblox.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://*.roblox.com/"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{9b4cd657-2d59-4f03-a1ac-afad41c5ecc2}"
    }
  }
}