Thanks Andrii,
I made it work, but by overriding individual CSS styles for each element I wanted changed.
I was hoping that it would have been possible to define styles through Theme Options/Typography/ – but here I can only define the font family (e.g. Circular) and not the weights – as far as I could make sense of it at least.
Anyway, I got it solved manually, so no worries. Perhaps something to consider for a future update…?
Thanks,
Jonas