--- a/QTfrontend/model/ThemeModel.h	Tue Apr 23 13:22:12 2019 +0200
+++ b/QTfrontend/model/ThemeModel.h	Tue Apr 23 15:32:04 2019 +0200
@@ -41,7 +41,7 @@
         Q_OBJECT
 
     public:
-        enum Roles { ActualNameRole = Qt::UserRole, IsDlcRole, IconPathRole, IsHiddenRole };
+        enum Roles { ActualNameRole = Qt::UserRole, IsDlcRole, IconPathRole, IsHiddenRole, IsBackgroundThemeRole };
         explicit ThemeModel(QObject *parent = 0);
 
         int rowCount(const QModelIndex &parent = QModelIndex()) const;