@item tooltip
This face is used for tooltips. @xref{Tooltips}.
@item menu
-This face determines the colors and font of Emacs's menus. Setting the
-font of LessTif/Motif menus is currently not supported; attempts to set
-the font are ignored in this case. @xref{Menu Bars}.
+@cindex menu bar appearance
+@cindex @code{menu} face, no effect if customized
+@cindex customization of @code{menu} face
+This face determines the colors and font of Emacs's menus. @xref{Menu
+Bars}. Setting the font of LessTif/Motif menus is currently not
+supported; attempts to set the font are ignored in this case.
+Likewise, attempts to customize this face in Emacs built with GTK and
+in the MS-Windows port are ignored by the respective GUI toolkits;
+you need to use system-wide styles and options to change the
+appearance of the menus.
@end table
@node Font Lock