PNG_tRNS           57 third_party/libpng/png.c PNG_tRNS;
PNG_tRNS          204 third_party/libpng/pngpread.c       PNG_CONST PNG_tRNS;
PNG_tRNS          435 third_party/libpng/pngread.c       PNG_CONST PNG_tRNS;
PNG_tRNS         1013 third_party/libpng/pngread.c       PNG_CONST PNG_tRNS;
PNG_tRNS         1080 third_party/libpng/pngwutil.c    PNG_tRNS;