diff -r 1ee4842a9c86 -r 258c320256dc QTfrontend/ui/widget/mapContainer.cpp
--- a/QTfrontend/ui/widget/mapContainer.cpp	Tue Dec 03 23:54:58 2013 +0400
+++ b/QTfrontend/ui/widget/mapContainer.cpp	Wed Dec 04 00:19:42 2013 +0400
@@ -252,7 +252,6 @@
     staticMapChanged(m_staticMapModel->index(0, 0));
     missionMapChanged(m_missionMapModel->index(0, 0));
     changeMapType(MapModel::GeneratedMap);
-    setRandomTheme();
 }
 
 void HWMapContainer::setImage(const QImage newImage)
@@ -603,6 +602,7 @@
 {
     if (!m_previewEnabled) {
         m_previewEnabled = true;
+        setRandomTheme();
         updatePreview();
     }
     QWidget::showEvent(event);