diff -r b13071610c07 -r f816b9e73fcb QTfrontend/ui/widget/themeprompt.h
--- a/QTfrontend/ui/widget/themeprompt.h	Mon Mar 26 15:12:33 2018 +0200
+++ b/QTfrontend/ui/widget/themeprompt.h	Tue Mar 27 04:39:31 2018 +0200
@@ -54,6 +54,7 @@
 
     private slots:
         void onAccepted();
+        void onRejected();
         void themeChosen(const QModelIndex & index);
         void filterChanged(const QString & text);
         void moveUp();