Customizing Faces
In addition to user options, some customization groups also include
faces. When you show the contents of a group, both the user options and
the faces in the group appear in the customization buffer. Here is an
example of how a face looks:
Custom Changed Face: (sample) [Hide]
[State]: this face is unchanged from its standard setting.
Parent groups: [Custom Magic Faces]
Attributes: [ ] Font family: [Value Menu] *
[ ] Width: [Value Menu] *
[ ] Height: [Value Menu] *
[ ] Weight: [Value Menu] *
[ ] Slant: [Value Menu] *
[ ] Underline: [Value Menu] *
[ ] Overline: [Value Menu] *
[ ] Strike-through: [Value Menu] *
[ ] Box around text: [Value Menu] *
[ ] Inverse-video: [Value Menu] *
[X] Foreground: [Value Menu] Color: white (sample)
[X] Background: [Value Menu] Color: blue (sample)
[ ] Stipple: [Value Menu] *
[ ] Inherit:
Each face attribute has its own line. The [x] field
before the attribute name indicates whether the attribute is
enabled; X means that it is. You can enable or disable the
attribute by invoking that field. When the attribute is enabled, you
can change the attribute value in the usual ways.
On a black-and-white display, the colors you can use for the
background are black, white, gray, gray1,
and gray3. Emacs supports these shades of gray by using
background stipple patterns instead of a color.
Setting, saving and resetting a face work like the same operations for
options (see Changing an Option).
A face can specify different appearances for different types of
display. For example, a face can make text red on a color display, but
use a bold font on a monochrome display. To specify multiple
appearances for a face, select Show all display specs in the menu you
get from invoking [State].
Another more basic way to set the attributes of a specific face is
with M-x modify-face. This command reads the name of a face, then
reads the attributes one by one. For the color and stipple attributes,
the attribute's current value is the default--type just <RET> if
you don't want to change that attribute. Type none if you want
to clear out the attribute.
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