Hold on, what I wrote above is for LibreOffice 3.7+/master, 3.6 still guesses font weights from the strings in the GlobalFontInfo struct:
https://gerrit.libreoffice.org/gitweb?p=core.git;a=blob;f=vcl/generic/fontmanager/fontmanager.cxx;h=76ca13ec4366a9c82b84bceef2c0b4d12b6cd117;hb=da8c1e62c79033f0c895f81e019d23ce79aa6834#l138
Hold on, what I wrote above is for LibreOffice 3.7+/master, 3.6 still guesses font weights from the strings in the GlobalFontInfo struct:
https:/ /gerrit. libreoffice. org/gitweb? p=core. git;a=blob; f=vcl/generic/ fontmanager/ fontmanager. cxx;h=76ca13ec4 366a9c82b84bcee f2c0b4d12b6cd11 7;hb=da8c1e62c7 9033f0c895f81e0 19d23ce79aa6834 #l138