png_sBIT          117 contrib/libtests/pngunknown.c #define png_sBIT PNG_U32(115,  66,  73,  84)
png_sBIT          126 contrib/tools/pngfix.c #define png_sBIT PNG_U32(115,  66,  73,  84)
png_sBIT          769 pngpriv.h      #define png_sBIT PNG_U32(115,  66,  73,  84)