Util uses a simple spacing system inspired by the likes of BassCSS and Tachyons.
ph2 pv2
In this example, p means padding (m means margin), h means horizontal while v means vertical, and the number at the end is the level. Levels go from 0-4.
ml1 mt2
This example shows off margins. For the middle selector, you use t (top), b (bottom), l (left), and r (right) to say which direction you want the margin. Margin does not have v or h as directions.
p2 m2
If you want something on all sides, just do the above, with type then level.
Colors
Text Colors
accentinfosuccesswarningerrorblackwhitegray
Background Colors
bg-accent
bg-info
bg-success
bg-warning
bg-error
bg-black
bg-white
bg-gray
Border Colors
b-accent
b-info
b-success
b-warning
b-error
b-black
b-white
b-gray
Misc
Components
For now, use the "view source" functionality of your browser as documentation