(escape-glyph, minibuffer-prompt, button): Add commentary for

the reasons we use "type pc" in these faces.

lisp/ChangeLog

@@ -1,3 +1,10 @@
+2005-02-19  Eli Zaretskii  <eliz@gnu.org>
+
+	* faces.el (escape-glyph, minibuffer-prompt): Add commentary for
+	the reasons we use "type pc" in these faces.
+
+	* button.el (button): Ditto.
+
 2005-02-19  Michael Mauger  <mmaug@yahoo.com>
 
 	* replace.el (query-replace-read-from): Set the value of

lisp/button.el

@@ -50,6 +50,7 @@
 
 ;; Globals
 
+;; Use color for the MS-DOS port because it doesn't support underline.
 (defface button '((((type pc) (class color))
 		   (:foreground "lightblue"))
 		  (t :underline t))

lisp/faces.el

@@ -1880,6 +1880,9 @@ created."
 
 
 (defface minibuffer-prompt '((((background dark)) :foreground "cyan")
+			     ;; Don't use blue because many users of
+			     ;; the MS-DOS port customize their
+			     ;; foreground color to be blue.
 			     (((type pc)) :foreground "magenta")
 			     (t :foreground "dark blue"))
   "Face for minibuffer prompts."
@@ -2047,6 +2050,8 @@ Note: Other faces cannot inherit from the cursor face."
   :group 'basic-faces)
 
 (defface escape-glyph '((((background dark)) :foreground "cyan")
+			;; See the comment in minibuffer-prompt for
+			;; the reason not to use blue on MS-DOS.
 			(((type pc)) :foreground "magenta")
 			(t :foreground "blue"))
   "Face for characters displayed as ^-sequences or \-sequences."