Five classes

Every family in the repository carries one primary category in its metadata. These are the five, with the median proportions of their members.

Class	Families	Median x-height	Median width	Variable
Sans-serif	732	519	522	41%
Serif	354	482	514	29%
Display	472	507	506	14%
Handwriting	297	445	418	24%
Monospace	44	517	600	41%

Families coloured by class, units per 1,000 em. Not drawn: 14 families with values outside the frame and the 112 designs without ascenders.