A set of styles has been included for you to use, customize, or build off of. Some of them use the vanilla variables, so they'll adapt to your own style. This has the possible side effect of looking wonky depending on how your own style is set up, so bear that in mind.
The house special.
Classic, minimal, compact, sleek. A Wikipedia-like style.
An alternative, angular design.
Also available is the substyle, loaded on top:
azi-steel azi-steel-clip - a bit experimental.
A more rounded look.
Minimal and transparent. Effect works best when it has something to be transparent against other than solid color.