PBM_BACKGROUND   7504 src/image.c          if (fmt[PBM_BACKGROUND].count
PBM_BACKGROUND   7505 src/image.c    	  && STRINGP (fmt[PBM_BACKGROUND].value))
PBM_BACKGROUND   7507 src/image.c    	  bg = image_alloc_image_color (f, img, fmt[PBM_BACKGROUND].value, bg);