StylableOptionalContentDisplayProperty
class StylableOptionalContentDisplayProperty(initialValue: ContentDisplay?, bean: Any? = null, beanName: String? = null) : SimpleStylableProperty<ContentDisplay?> , OptionalContentDisplayProperty
Boilerplate which avoids having to use generics.
A subclass of SimpleOptionalContentDisplayProperty, which also stores the pre-styled value, so that if the style is removed, then the pre-styled value can be reinstated.