Values and desciptions are the same on Value Propagate
Values and desciptions are the same on value-propagate.c
property_boolean (value, _("Propagating value channel"), TRUE)
description (_("Propagating value channel"))
property_boolean (alpha, _("Propagating alpha channel"), TRUE)
description (_("Propagating alpha channel"))
operations/common-gpl3+/value-propagate.c