That’s fantastic, @Johani. Thanks to your undying patience, I’m starting to understand those mysterious helper.h things. (I think I need to read up on Ember to understand those?).
But of course, now they want the text left aligned with the logo. 
EDIT: But wait! Developing Discourse Themes & Theme Components showed me enough to find the home-logo widget and fix it! You’re a genius, and an excellent teacher.