[Patch #739124] Add use_default_colors() to curses module
diff --git a/Doc/lib/libcurses.tex b/Doc/lib/libcurses.tex
index 296e887..1eace43 100644
--- a/Doc/lib/libcurses.tex
+++ b/Doc/lib/libcurses.tex
@@ -537,6 +537,15 @@
size if \envvar{LINES} and \envvar{COLUMNS} are not set).
\end{funcdesc}
+\begin{funcdesc}{use_default_colors}{}
+Allow use of default values for colors on terminals supporting this
+feature. Use this to support transparency in your
+application. The default color is assigned to the color number -1.
+After calling this function,
+\function{init_pair(x, curses.COLOR_RED, -1)} initializes, for instance,
+color pair \var{x} to a red foreground color on the default background.
+\end{funcdesc}
+
\subsection{Window Objects \label{curses-window-objects}}
Window objects, as returned by \function{initscr()} and
diff --git a/Doc/whatsnew/whatsnew24.tex b/Doc/whatsnew/whatsnew24.tex
index e49825f..2f0df30 100644
--- a/Doc/whatsnew/whatsnew24.tex
+++ b/Doc/whatsnew/whatsnew24.tex
@@ -69,8 +69,11 @@
\begin{itemize}
-\item Descriptions go here.
-
+\item The \module{curses} modules now supports the ncurses extension
+ \function{use_default_colors()}. On platforms where the terminal
+ supports transparency, this makes it possible to use a transparent background.
+ (Contributed by J\"org Lehmann.)
+
\end{itemize}