GrayscaleMode     397 coders/psd.c       case GrayscaleMode: return "Grayscale";
GrayscaleMode     850 coders/psd.c     if ((psd_info.mode == BitmapMode) || (psd_info.mode == GrayscaleMode) ||
GrayscaleMode    1242 coders/psd.c                   (psd_info.mode == GrayscaleMode) ||
GrayscaleMode    2160 coders/psd.c           (monochrome != MagickFalse ? BitmapMode : GrayscaleMode));