woman: Fonts
4.1 Fonts and Faces
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Fonts used by ‘roff’ are handled by WoMan as faces, the details of which
are customizable. 
Faces Faces. WoMan supports both the italic
and bold fonts normally used in man pages, together with a single face
to represent all unknown fonts (which are occasionally used in
“non-standard” man pages, usually to represent a “typewriter” font) and
a face to indicate additional symbols introduced by WoMan. This
currently means the characters ^ and _ used to indicate super- and
sub-scripts, which are not displayed well by WoMan.
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