Change the background for New Requisition Portal (Redwood) to align with the main screen

Summary:

Hi Team ,

We are in process of implementing the new requisition portal – Responsive Self-Service Procurement.

Currently the background is defaulted to black, and we would like to align it as the main screen(Plain White) .
Is it possible to change the background of the home page using Visual builder studio ?

Thanks !

Content (please ensure you mask any confidential information):

Main Screen :

Code Snippet (add any code snippets that support your topic, if applicable):