cmsSigPreview1Tag 5411 src/cmstypes.c     { cmsSigPreview1Tag,            { 1, 3,  { cmsSigLut16Type, cmsSigLutBtoAType, cmsSigLut8Type }, DecideLUTtypeB2A}, &SupportedTags[31]},
cmsSigPreview1Tag 5279 testbed/testcms2.c         if (!CheckLUT(Pass, h, cmsSigPreview1Tag)) return 0;