How to change number of articles listed on category page?

Dear tagdiv-Support theme,

I am using the Newspaper 7 theme and now I have encountered this problem with category page:

I noticed that for the homepage, you can change the number of articles under “Limit post number”, so that the page would display, say, 20 or 30 articles instead of the default 10 articles, before the reader has to navigate to the next page/next article list.

But it’s not the same with category page. There, only 10 articles/posts are displayed as a default and there’s no way to change this in Theme panel (or at least I haven’t found where to change this settings).

So please help me, where can Ih change this? 🙁