four families · one rule each
Type system
Oswald
display · H1–H3
Research in motion
default-style headings · never body
Work Sans
bold · forms
Research in motion
bold-variant headings, buttons, inputs
Georgia
elegant · H1–H3
Research in motion
elegant-variant headings · admin + research · system font
Open Sans
body · eyebrows
Research in motion — body, subheads, eyebrows, H4+.
everywhere, at any size