case classAdjust[A](value: A) extends Update[A] with Product with Serializable
Direct adjustment without drag period.
final case classDragAdjust[A](value: A) extends Update[A] with Product with Serializable
final case classDragRubber[Y](modelYOffset: Y, modelYExtent: Y, span: Span, isValid: Boolean) extends Update[Nothing] with Rectangular[Y] with Product with Serializable