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Gnus Manual

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. Under balloon-help-mode, when the mouse passes over text with this property set, a balloon window will appear and display the string. Please refer to the doc string of balloon-help-mode for more information on this.

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.