Density
Three tiers. Pick one for the app, don't tune it.
Same controls, three tiers
Compact
Save
Monthly
Width
px
Normal
Save
Monthly
Width
px
Product
Save
Monthly
Width
px
The numbers
Compact
Normal
Product
font-size
10
10
12
control-height
23
27
33
chrome-bar-height
31
37
43
For
Dense desktop tools
The same, roomier
Web and product apps
Used by
Arcs & Angles
A&A "Comfortable"
The hub