[Evolution] File cabinet icon for archives

[Jason Franklin <jrf elitemail org>]

Evolution Version: 3.28.5-0ubuntu0.18.04.1

Greetings,

In my version of Evolution, there are a lot of nice icons.  I'd like to
use the filing cabinet icon for my archive folder in my IMAP account. 
For some reason, I don't see an easy way to specify the the icon for
one of my folders.  Is this configurable?

Thanks,
Jason Franklin