png_set_sPLT     2490 third_party/libpng/png.h extern PNG_EXPORT(void,png_set_sPLT) PNGARG((png_structp png_ptr,
png_set_sPLT     1323 third_party/libpng/pngrutil.c    png_set_sPLT(png_ptr, info_ptr, &new_palette, 1);