% \enabletrackers[otf.lookups]
% \enabletrackers[otf.singles]
% \enabletrackers[otf.multiples]
% \enabletrackers[otf.alternatives]
% \enabletrackers[otf.ligatures]
% \enabletrackers[otf.contexts]
% \enabletrackers[otf.kerns]
% \enabletrackers[otf.details]
% \enabletrackers[otf.applied]
% \enabletrackers[otf.steps]
% \enabletrackers[fonts.defining]

\definefontfeature[default][default][mode=node,script=latn,language=dflt]

\starttext
% \char65 {\definedfont[name:baskerville*default]\char65 \space Baskerville}\par
% kerned: \char65 {\definedfont[name:baskervilleitalic*default]\char65 \space Baskerville Italic}\par
% kerned: \char65 {\definedfont[name:baskervillesemibold*default]\char65 \space Baskerville SemiBold}\par
% \char65 {\definedfont[name:baskervillesemibolditalic*default]\char65 \space Baskerville SemiBold Italic}\par
% kerned: \char65 {\definedfont[name:baskervillebold*default]\char65 \space Baskerville Bold}\par
% kerned \char65 {\definedfont[name:baskervillebolditalic*default]\char65 \space Baskerville Bold Italic}\par

% {\definedfont[name:baskerville*default]               Baskerville}\par
% {\definedfont[name:baskervilleitalic*default]         Baskerville Italic}\par
% {\definedfont[name:baskervillesemibold*default]       Baskerville SemiBold}\par
% {\definedfont[name:baskervillesemibolditalic*default] Baskerville SemiBold Italic}\par
% {\definedfont[name:baskervillebold*default]           Baskerville Bold}\par
% {\definedfont[name:baskervillebolditalic*default]     Baskerville Bold Italic}\par

% ttc:

{\definedfont[name:baskerville*default]               aap}\par
{\definedfont[name:baskervilleitalic*default]         koe}\par
{\definedfont[name:baskervillesemibold*default]       fiets}\par
{\definedfont[name:baskervillesemibolditalic*default] AAP}\par
{\definedfont[name:baskervillebold*default]           KOE}\par
{\definedfont[name:baskervillebolditalic*default]     FIETS}\par

\stoptext
