Examine source code of ClosetCloud ERP Tools

{
  "manifest_version": 3,
  "name": "ClosetCloud ERP Tools",
  "version": "1.3.5",
  "description": "Combines invoice data copying and CSS overrides",
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "permissions": [
    "activeTab",
    "clipboardWrite",
    "storage",
    "scripting"
  ],
  "host_permissions": [
    "https://erp.closetcloudbd.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://erp.closetcloudbd.com/invoice/*"
      ],
      "js": [
        "price.js",
        "bkash.js",
        "button.js",
        "injector.js"
      ],
      "css": [
        "css/style.css"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "https://erp.closetcloudbd.com/sells/create*"
      ],
      "js": [
        "create.js"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "css/style.css"
      ],
      "matches": [
        "*://erp.closetcloudbd.com/invoice/*"
      ]
    }
  ],
  "action": {
    "default_icon": "icon/icon.png"
  },
  "icons": {
    "48": "icon/icon.png",
    "96": "icon/icon@2x.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "rayhanamin208@gmail.com"
    }
  }
}