-(defcustom gnus-face-properties-alist (if (featurep 'xemacs)
- '((xface . (:face gnus-x-face)))
- '((pbm . (:face gnus-x-face))
- (png . nil)))
- "Alist of image types and properties applied to Face and X-Face images.
-Here are examples:
-
-;; Specify the altitude of Face images in the From header.
-\(setq gnus-face-properties-alist
- '((pbm . (:face gnus-x-face :ascent 80))
- (png . (:ascent 80))))
-
-;; Show Face images as pressed buttons.
-\(setq gnus-face-properties-alist
- '((pbm . (:face gnus-x-face :relief -2))
- (png . (:relief -2))))
-
-See the manual for the valid properties for various image types.
-Currently, `pbm' is used for X-Face images and `png' is used for Face
-images in Emacs. Only the `:face' property is effective on the `xface'
-image type in XEmacs if it is built with the libcompface library."
+The command must take an image filename (first format argument
+\"%s\") and the number of colors (second format argument: \"%d\")
+as input. The output must be the Face header data on stdout in
+PNG format."
+ :version "22.1"