StackViewProperties
constructor(viewType: ViewType = ViewType.STACK, weight: Float = 0.0f, backgroundColor: String? = "#FFFFFF", padding: Int = 0, borderRadius: Int = 0, alignment: ViewAlignment = ViewAlignment.NONE, fillMaxWidth: Boolean = false, fillMaxHeight: Boolean = false, clickable: String = "false", visible: String = "true", opacity: Float = 0.0f, size: Int? = 0, children: List<ViewProperties> = emptyList())