Hi,
please regard this minimal example:
\setupbodyfont[10pt]
\starttext
\title{Title}
\section{Section}
{\switchtobodyfont[big] big}
{\switchtobodyfont[small] small}
{\tfxx tfxx}
{\tfx tfx}
{\tfa tfa}
{\tfb tfb}
{\tfc tfc}
{\tfd tfd}
\stoptext
Latin Modern Regular is available in different optical sizes -
lmroman{5,6,7,8,9,10,12,17}-regular.otf - and as context is aware of these
sizes (configured in typescripts) I wonder why they are not correctly assigned.
This table indicates what happens instead:
\tfxx 6pt -> lmroman6 (as expected)
\tfx 8pt -> lmroman8 (as expected)
\tftf 10pt -> lmroman10 (as expected)
\tfa 12.0pt -> lmroman10 (instead of lmroman12)
\tfb 14.4pt -> lmroman10 (instead of lmroman12)
\tfc 17.3pt -> lmroman10 (instead of lmroman17)
\tfd 20.7pt -> lmroman10 (instead of lmroman17)
\switchtobodyfont[small] 8pt -> lmroman8 (as expected)
\switchtobodyfont[big] 12pt -> lmroman12 (as expected)
\title 17.3pt -> lmroman10 (instead of lmroman17)
\section 12pt -> lmroman10 (instead of lmroman12)
The commands \title and \section and the font size switches \tfa, b, c, and d
scale the font to the correct size, however, the wrong optical size is
assigned. Note, this is not the case for \tfx, xx and \switchtobodyfont. Tested
in MKIV and MKII (current beta).
Is this a bug or a feature?
Cheers
Florian
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