[Solved] White Labelled pages

Hi all,

I'm trying to do my best to RTFM before asking questions. And so far I've been successful, since I am also very familiar with linux (going on 25+ years as a linux admin) and also familiar with this other product that begins with a Z you may be very familiar with that is now closed source. In any case I'm building out a Carbonio CE server and reading here about white-labelling, and I feel like some detail is missing.

For instance, I'm on the latest version of Carbonio, downloaded 2 days ago at this point. In that documentation it states "All the White Labelling options are available in the Carbonio Admin Panel under Domains ‣ Global ‣ Theme" but if I go to my Carbonio Admin Panel and select Domains - Global, there is no Theme option. My options are General Settings, Global Address List, Authentication, Virtual Hosts & Certificates, Mailbox Quota, and Disclaimer.

The one that really has me stumped and the reason for this forum post is further down, where it talks creating an /opt/zextras/web/custom folder to put things in. Got it, and I created it on my server, but then... the rest of the documentation talks about the format of the logo file (SVG) and the aspect ratio of the file(s) (Admin = 7:1 and End User = 4:1) but not what to name the files or where they go relative to the absolute path above. 

Can someone clarify these things for me?

Thank you in advance!

-P