GUI missing icons and there is a different color scheme
Dx NetOps Performance Management any version
Custom theme was in place
You can update theme at the tenant level. See the following documentation:
https://techdocs.broadcom.com/us/en/ca-enterprise-software/it-operations-management/dx-netops/22-2/Performance-Monitoring-with-DX-Performance-Management/administrating/multi-tenancy/manage-tenants.html