Typography Section Setup in Avril Lite ?

After clicking on customize you will in theme Customizer.

Here you have to click on the Home Page Section.

Here you have to click on Typography Section

In-Body Typography Here you can manage Content.

Go to Customize ->Home Page Section-> Typography Section

After clicking on customize you will in theme Customizer.

Here you have to click on the Home Page Section.

Here you have to click on Typography Section

In-Heading Here you can manage H1 to H.

Go to Customize ->Home Page Section-> Typography Section