OilPaintPreview   560 Magick++/lib/Magick++/Include.h   using MagickCore::OilPaintPreview;
OilPaintPreview  2546 magick/effect.c       case OilPaintPreview:
OilPaintPreview  1437 magick/option.c     { "OilPaint", OilPaintPreview, UndefinedOptionFlag, MagickFalse },