It's possible to change default font family for your whole site, specific folder or even note. Default font family is "helvetica". But you can use any of the following font families:
  • san-serif
  • avenir
  • athelas
  • georgia
  • times
  • bodoni
  • calisto
  • garamond
  • baskerville
All you need to do is to add metadata "fontFamily" with appropriate value. Like this