PNG_PLTE           41 third_party/libpng/png.c PNG_PLTE;
PNG_PLTE          157 third_party/libpng/pngpread.c       PNG_CONST PNG_PLTE;
PNG_PLTE          388 third_party/libpng/pngread.c       PNG_CONST PNG_PLTE;
PNG_PLTE          966 third_party/libpng/pngread.c       PNG_CONST PNG_PLTE;
PNG_PLTE          576 third_party/libpng/pngwutil.c    PNG_PLTE;