diff -r 4a95c6b06ebe -r 5d5d84ab2c48 src/dialogs/configdialog.cpp
--- a/src/dialogs/configdialog.cpp	Sun Sep 06 01:22:25 2015 +0300
+++ b/src/dialogs/configdialog.cpp	Sun Sep 06 01:52:23 2015 +0300
@@ -277,7 +277,7 @@
 	m_window->syncSettings();
 	currentDocument()->reloadAllSubfiles();
 	LoadLogoStuds();
-	m_window->R()->setBackground();
+	m_window->renderer()->setBackground();
 	m_window->doFullRefresh();
 	m_window->updateDocumentList();
 }