%% This is part of the OpTeX project, see http://petr.olsak.net/optex \_famdecl [XITS] \Xits {A fork of STIX with Bold Math variant} {\caps} {\rm \bf \it \bi} {XITSMath} {[XITS-Regular]} {\_def\_fontnamegen {[XITS-\_currV]:\_capsV\_fontfeatures}} \_wlog{\_detokenize{% Modifier:^^J \caps ...... caps & small caps (works only for \rm)^^J }} \_moddef \resetmod {\_fsetV caps={} \_fvars Regular Bold Italic BoldItalic } \_moddef \caps {\_fsetV caps=+smcp;\_ffonum; } \_initfontfamily % new font family must be initialized \_loadmath {[XITSMath-Regular]} \_loadboldmath {[XITSMath-Bold]} \to {[XITSMath-Regular]} \_endcode See the file `f-heros.opm` for information about principles of such font-macro-files.