[Support request] Widget title style

Hello,
I have GP Premium plugin. Typography settings enabled. I set the font style for the Widget title, but the style did not changed. If I change the settings to different element (for example Site title) – the style is changed, only for the widgets it doesn’t work.

I figure out that if I set font to the “Body” it overwrites all fonts. I expected, that next settings for the headlines change the headline style, but it stayed the same, “Body” has the highest rights. So can you tell me, how to set the different style for the paragraphs, article titles and widget titles?

Now, I set the style for: Site title, Primary menu items, Headline 1, Button. Why the Widget style doesnt work? I think that is caused by the default settings of Headlines, because all headlines are setted to font-style: inherit. And widget title is H3. If I change the H3 style, it works for the widget titles fine, but I dont want to change all H3 on the whole page.

I dont want to use CSS if there is a big settings panel for a typo.