[texhax] GFS Didot Old Style Figures Issue

[Bob Tennent]

 >|A brutal way to get bold text figures is:
 >|\addfontfeature{AutoFakeBold=2} but fake bold text looks ugly indeed.
 >|The ideal would be to devise some code that enables fake bold only in
 >|case of figures. I'd rule out manual fine tuning because I use bold only
 >|in chapter/section numbers and page numbers on ToC, all things the user
 >|has no control of, at least as far as I know.

A user can control the font used for chapter/section numbers and
page numbers by re-defining the relevant commands. Look for the
definitions in the tex/latex/base directory of your distribution.
For example:

\def\@makechapterhead#1{%
  \vspace*{50\p@}%
  {\parindent \z@ \raggedright \normalfont
    \ifnum \c at secnumdepth >\m at ne
      \if at mainmatter
        \huge\bfseries \@chapapp\space \thechapter
        \par\nobreak
        \vskip 20\p@
      \fi
    \fi
    \interlinepenalty\@M
    \Huge \bfseries #1\par\nobreak
    \vskip 40\p@
  }}

In fact, if your *only* use of bold is in these places, you just
need to re-define \bfseries.

But instead of using fake bold, consider using a bold font
compatible with your chosen text font. For example, the Latin
alphabet of gfsdidot is "based on Zapf's Palatino"; so use pplj
(mathpazo with old-style numbers) as the family for bold:

\def\bfseries{\fontfamily{pplj}\fontseries{b}\selectfont}

Bob T.