Fonts used by
roff are handled by WoMan as faces, the details of
which are customizable. See 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.