In this section:
These format codes (%it (Italic), %bf (Bold Font) and %ul (Underlined)) are used to begin italic, bold face, and underlined text respectively. Each code takes the grave accent modifier (`) in order to terminate the corresponding attribute.
i=winio@('Uses %bfbold face%`bf for emphasis')
%sf (Standard Font) (system font) is used after any combination of these format codes in order to restore the sytem font.