`TCustomGradientLookUpTableSampler`
pt	ro	LutPtr
pt	ro	LutMask
pt	ro	WrapProc

`TCustomGradientSampler`
pt	ro	Initialized
		Gradient
		WrapMode

`TCustomSampler`

`TNotifiablePersistent`
pt	ro	UpdateCount

`TPlainInterfacedPersistent`
pt		RefCounted
	ro	RefCount