--- a/controls/FolderTree.py	Wed Aug 16 13:49:02 2017 +0300
+++ b/controls/FolderTree.py	Wed Aug 16 13:56:36 2017 +0300
@@ -57,10 +57,10 @@
         main_sizer = wx.BoxSizer(wx.VERTICAL)
 
         self.Tree = wx.TreeCtrl(self,
-              style=wx.TR_HAS_BUTTONS   |
-                    wx.TR_SINGLE        |
-                    wx.SUNKEN_BORDER    |
-                    wx.TR_HIDE_ROOT     |
+              style=wx.TR_HAS_BUTTONS |
+                    wx.TR_SINGLE |
+                    wx.SUNKEN_BORDER |
+                    wx.TR_HIDE_ROOT |
                     wx.TR_LINES_AT_ROOT |
                     wx.TR_EDIT_LABELS)
         if wx.Platform == '__WXMSW__':