Including abbreviation or journal initials in the header

The current templates allows you to display a journal logo or the full title in the header.
The settings wizard does ask for two other elements as well: abbreviation and initials. Having to deal with long journal titles, we would like to include these two elements as well. This could especially helpful in dealing with small(er) screens.

For instance:
@media (min-width: @screen-desktop) Journal of Facade Design and Engineering
@media (min-width: @screen-phone) JFDE

My question: the source title is included by using

What do I need to use to include the abbreviation or the initials?

I believe every template should have access to a {$currentContext} variable. This is a Context object, so you could get the initials like this (I think):