the default appearance of the toolkit's tooltips.@footnote{The
foreground and background colors of toolkit-created tooltips on
Nextstep can also be customized by setting the @code{foreground} and
-@code{background} frame parameters inside
-@code{tooltip-frame-parameters}} To disable this, change the variable
+@code{background} frame parameters that are part of
+@code{tooltip-frame-parameters}.} To disable this, change the variable
@code{use-system-tooltips} to @code{nil}. If you do this, or if Emacs
is built without the appropriate windowing support, most attributes of
the tooltip text are specified by the @code{tooltip} face, and by X