diff --git a/gtk2_ardour/color.h b/gtk2_ardour/color.h
new file mode 100644
index 0000000000..b1b730c7fa
--- /dev/null
+++ b/gtk2_ardour/color.h
@@ -0,0 +1,28 @@
+/*
+    Copyright (C) 2000-2007 Paul Davis 
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#ifndef __gtk_ardour_color_h__
+#define __gtk_ardour_color_h__
+
+#include <sigc++/signal.h>
+
+extern sigc::signal<void>                  ColorsChanged;
+extern sigc::signal<void,uint32_t> ColorChanged;
+
+#endif /* __gtk_ardour_color_h__ */