KeySetter
class KeySetter[K <: Key, V, El <: Base](val key: K, val value: V, val action: (El, K, V) => Unit) extends Setter[El]
This class represents a modifier that sets a Key (e.g. an attribute or a style) to a specific value on a El. action is what performs this change.
This class represents a modifier that sets a Key (e.g. an attribute or a style) to a specific value on a El. action is what performs this change.