RemoveZeroLayer 496 Magick++/lib/Magick++/Include.h using MagickCore::RemoveZeroLayer; RemoveZeroLayer 1191 magick/option.c { "RemoveZero", RemoveZeroLayer, UndefinedOptionFlag, MagickFalse }, RemoveZeroLayer 7989 wand/mogrify.c case RemoveZeroLayer: