Re: "colorize" the gnus-summary buffer ?

[厚脸王]

8.4.5 Formatting Fonts
----------------------

There are specs for highlighting, and these are shared by all the format
variables.  Text inside the `%(' and `%)' specifiers will get the
special `mouse-face' property set, which means that it will be
highlighted (with `gnus-mouse-face') when you put the mouse pointer
over it.

   Text inside the `%{' and `%}' specifiers will have their normal
faces set using `gnus-face-0', which is `bold' by default.  If you say
`%1{', you'll get `gnus-face-1' instead, and so on.  Create as many
faces as you wish.  The same goes for the `mouse-face' specs--you can
say `%3(hello%)' to have `hello' mouse-highlighted with
`gnus-mouse-face-3'.

   Text inside the `%<<' and `%>>' specifiers will get the special
`balloon-help' property set to `gnus-balloon-face-0'.  If you say
`%1<<', you'll get `gnus-balloon-face-1' and so on.  The
`gnus-balloon-face-*' variables should be either strings or symbols
naming functions that return a string.  When the mouse passes over text
with this property set, a balloon window will appear and display the
string.  Please refer to *Note Tooltips: (emacs)Tooltips, (in GNU
Emacs) or the doc string of `balloon-help-mode' (in XEmacs) for more
information on this.  (For technical reasons, the guillemets have been
approximated as `<<' and `>>' in this paragraph.)

   Here's an alternative recipe for the group buffer:

     ;; Create three face types.
     (setq gnus-face-1 'bold)
     (setq gnus-face-3 'italic)

     ;; We want the article count to be in
     ;; a bold and green face.  So we create
     ;; a new face called `my-green-bold'.
     (copy-face 'bold 'my-green-bold)
     ;; Set the color.
     (set-face-foreground 'my-green-bold "ForestGreen")
     (setq gnus-face-2 'my-green-bold)

     ;; Set the new & fancy format.
     (setq gnus-group-line-format
           "%M%S%3{%5y%}%2[:%] %(%1{%g%}%)\n")

   I'm sure you'll be able to use this scheme to create totally
unreadable and extremely vulgar displays.  Have fun!

   Note that the `%(' specs (and friends) do not make any sense on the
mode-line variables.