ModulusSubtract  1211 magick/composite.c     composite->red=ModulusSubtract(p->red,Sa,q->red,Da);
ModulusSubtract  1212 magick/composite.c     composite->green=ModulusSubtract(p->green,Sa,q->green,Da);
ModulusSubtract  1213 magick/composite.c     composite->blue=ModulusSubtract(p->blue,Sa,q->blue,Da);
ModulusSubtract  1215 magick/composite.c       composite->index=ModulusSubtract(p->index,Sa,q->index,Da);
ModulusSubtract  1219 magick/composite.c       composite->opacity=QuantumRange-ModulusSubtract(QuantumRange-p->opacity,
ModulusSubtract  1222 magick/composite.c       composite->red=ModulusSubtract(p->red,1.0,q->red,1.0);
ModulusSubtract  1224 magick/composite.c       composite->green=ModulusSubtract(p->green,1.0,q->green,1.0);
ModulusSubtract  1226 magick/composite.c       composite->blue=ModulusSubtract(p->blue,1.0,q->blue,1.0);
ModulusSubtract  1228 magick/composite.c       composite->index=ModulusSubtract(p->index,1.0,q->index,1.0);