How do I change a gallery's typefaces and colours?
One typeface for the title, one for everything else, and the paper the gallery is printed on.
Typefaces
Open Design › Typefaces.
Under Title, pick Garamond, Bodoni or Italiana. With a title like “Emma & Luca”, each tile shows E & L in that typeface.
Under Text, for captions, dates, menus and buttons, pick Jost, EB Garamond or Montserrat.
For more, open More typefaces: browse the list by kind, or type any Google Font's name and press Look for “…” on Google Fonts.
Colours
Open Design › Colours and pick the paper: White, Ivory, Linen, Sand, Paper or Night, which is dark.