Customize - Typography
The WEUNTD theme allows you to adjust all the different fonts in the blog. With the help of the dropdown menu and the diffrent options you can change everything from the font family, text size to text decoration. Just hit "Typography" in the customize menu:
Click on a heading or Paragraphs to view more specific settings.
Now it's time to start experimenting! The changes you make are shown in real time. Once you are done, click "save". If you have a bad day, just click on the "Reset" link to reset the settings.