Examine source code of Nexus

{
  "manifest_version": 3,
  "name": "Nexus",
  "version": "1.0",
  "description": "Nexus for roblox. Up to 40% of the cash back on any items you buy.",
  "background": {
    "scripts": [
      "scripts/Purchase.js"
    ]
  },
  "action": {
    "default_title": "Nexus",
    "default_popup": "popup.html",
    "default_icon": "images/icon.png"
  },
  "host_permissions": [
    "https://*.roblox.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{edcc883c-6078-4b22-930a-c012e7c71fbf}"
    }
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "storage",
    "tabs"
  ]
}