The Faces submenu lists various Emacs faces including
underline. Selecting one of these adds the
chosen face to the region. See section Using Multiple Typefaces. You can also specify a face
with these keyboard commands:
If you use these commands with a prefix argument--or, in Transient Mark mode, if the region is not active--then these commands specify a face to use for your next self-inserting input. See section Transient Mark Mode. This applies to both the keyboard commands and the menu commands.
Enriched mode defines two additional faces:
fixed. These correspond to codes used in the text/enriched file
excerpt face is intended for quotations. This face is the
italic unless you customize it (see section Modifying Faces).
fixed face is meant to say, "Use a fixed-width font for this
part of the text." Emacs currently supports only fixed-width fonts;
fixed annotation is not necessary now. However,
we plan to support variable width fonts in future Emacs versions, and
other systems that display text/enriched format may not use a
fixed-width font as the default. So if you specifically want a certain
part of the text to use a fixed-width font, you should specify the
fixed face for that part.
fixed face is normally defined to use a different font from
the default. However, systems have different fonts installed, you may
need to customize this.
If your terminal cannot display different faces, you will not be able to see them, but you can still edit documents containing faces. You can even add faces and colors to documents. They will be visible when the file is viewed on a terminal that can display them.