`@patternfly/pfe-core`

Utilities for building PatternFly elements.

Controllers

CascadeController - cascades configured properties/attributes to child elements
ColorContextController - enables colour context detection
CssVariableController - caches computed styles
LightDOMController - controls a light-DOM mutation observer
Logger - logging utilities
PerfController - measures element upgrading performance
PropertyObserverController - caches set values for observed properties until element is updated
SlotController - utilities for managing slots and slotted content

@bound - binds a decorated method to the object instance
@cascades - cascades the decorated property to configured light and shadow child elements
@initializer - executes a decorated method when the element upgrades and on DOM mutations (opt-out)
@observed - runs a callback when the decorated property changes
@time - tracks the time a method takes to complete using the performance API
@trace - debug decorator which logs the name and result of a class method whenever it runs

when - element-position directive which adds or removes an element depending on a condition