Change font size of course title

Hello,

I really like the "Apex" theme and we have been using this on all of our courses for the past few months. However, I have a 'bugaboo' that I can't find a fix for (if it even exists).

Is it possible to change the font size for the course title? It seems extremely large and I'm getting some feedback that sometimes the learners can't immediately find the "Start Course" button because the text size is too distracting. Additionally, it is in almost comical juxtaposition with the font size of the lessons on the cover page. 

I have attached some screen captures to illustrate what I am talking about - this is while previewing the course on a 13" laptop screen, which is what our learners primarily use to take our courses. 

Thanks!