'Typography' section helps to change different typographic elements such as font size and font family for body copy, headings, additional captions, accent elements etc. Figure 4.2.
However, you need to be careful with these settings and make wise decisions whether to make changes or not. Typography is so crucial because it is how you mainly present your content and message to the target audience. That's why before adjusting font family you might to consider checking this article that covers some basic tips how to manage typefaces mixing. Besides font family, you need to think twice before setting font sizes because this influence hugely readability and legibility of the message you're conveying. There is a thorough study of reading and tips you might need to follow. It is 3 Typography Tips for a More Comfortable Read we recommend you to read.