To select the fonts and font options for the text on your site go to Design Editor > Typography. Here you can individually set your font options for your Logo Text, Navigation Menu, Pages, Gallery, and Index.
To set your Typography options:
Select the Font family from the drop down menu.
Adjust the font size with the slider.
Within Text Options are more advanced customization options for your text: Text Transform, Text Decoration, Letter Spacing, and Line Height.
This sets the font and text styling for your Logo, if you type in your Logo Text.
This sets the font and text styling for your site's Navigation Menu text.
Title, Headers & Text
You can set the Font and text styling for your site’s Title (H1), Header (H2), and Subheaders (H3-6) and Normal Text. You can apply these font styles when you are using the Text Editor in the Content section > Page Editor.
Your site’s footer area contains your copyright text, which can be edited within the Settings tab. You can set the Font and text styling for your footer text as well as adjust the margin padding.
This sets the font and text styling for your Gallery Info Panel Title and Text - the title and caption on your individual images if you have the info panel enabled.
This sets the font and text styling for your Index page - the title and description for each index image.