Lighten           808 magick/composite.c     composite->red=gamma*Lighten(p->red,p->opacity,q->red,q->opacity);
Lighten           809 magick/composite.c     composite->green=gamma*Lighten(p->green,p->opacity,q->green,q->opacity);
Lighten           810 magick/composite.c     composite->blue=gamma*Lighten(p->blue,p->opacity,q->blue,q->opacity);
Lighten           812 magick/composite.c       composite->index=gamma*Lighten(p->index,p->opacity,q->index,q->opacity);