Most of us are used to how BeOS handles multiple workspaces: each workspace represents a configuration for the screen, including resolution, colours, and desktop background. The visual appearance, that is UI colours, scroll bar design, etc. is maintained per desktop, though - all workspaces share the same properties in this regard.
This is a companion discussion topic for the original entry at https://www.haiku-os.org/blog/axeld/2005-11-03_workspaces/