------------------- Displayed mod characters -------------------------

  _  Underline                          a  Subscript
  3  Boldface                           b  Subscript, Underline
  4  Underline, Boldface                c  Subscript, Boldface
  5  Overline                           d  Subscript, Underline, Boldface
  6  Underline, Overline                e  Subscript, Overline
  7  Boldface, Overline                 f  Subscript, Underline, Overline
  8  Underline, Boldface, Underline     g  Subscript, Boldface, Overline
                                        h  Subscript, Underline, Boldface,
  A  Superscript                                                 Overline
  B  Superscript, Underline
  C  Superscript, Boldface
  D  Superscript, Underline, Boldface
  E  Superscript, Overline
  F  Superscript, Underline, Overline
  G  Superscript, Boldface, Overline
  H  Superscript, Underline, Boldface, Overline
