Font style

It can all be changed with CSS. The structure of the rotator can be found here:

https://www.ads-software.com/support/topic/upgrading-to-20-broke-all-my-custom-styles?replies=7#post-5581240

I’m guessing about which font you think looks bold since you did not say or link to the rotator, but try putting this in your style.css file in your theme folder:

.testimonial_rotator_slide h2 { font-weight: normal; }