PBM_BACKGROUND   6906 src/image.c          if (fmt[PBM_BACKGROUND].count
PBM_BACKGROUND   6907 src/image.c    	  && STRINGP (fmt[PBM_BACKGROUND].value))
PBM_BACKGROUND   6909 src/image.c    	  bg = image_alloc_image_color (f, img, fmt[PBM_BACKGROUND].value, bg);