callout box font

Hi,

I try to change default fonts on the site. (I love the originals but I need latin extended subsets..)

I just changed “Body font” from “Source Sans Pro” to “Source Sans Pro – letin-ext subset” (so not even a real change) all the other parameters (size, weight, etc.) stayed original. All the body texts are perfect on the page now but the callout box button title changed weird: it changed size and from bold to regular.

Why? How to avoid this?
Which item on “Highend theme options / font settings” supposed to control callout box button title font?

Thanks,
John