BrightnessPreview  393 Magick++/lib/Magick++/Include.h   using MagickCore::BrightnessPreview;
BrightnessPreview 2996 magick/effect.c       case BrightnessPreview:
BrightnessPreview 1373 magick/option.c     { "Brightness", (ssize_t) BrightnessPreview, MagickFalse },