--- a/dialogs/BlockPreviewDialog.py	Tue Apr 09 13:18:51 2019 +0200
+++ b/dialogs/BlockPreviewDialog.py	Tue Apr 09 14:08:44 2019 +0200
@@ -250,10 +250,6 @@
         # Close dialog
         self.EndModal(wx.ID_OK)
 
-    def RefreshPreview(self):
-        """Triggers EVT_PAINT event to refresh UI"""
-        self.Refresh()
-
     def DrawPreview(self):
         """
         Refresh preview panel of graphic element