--- a/controls/FolderTree.py	Tue Aug 15 16:01:18 2017 +0300
+++ b/controls/FolderTree.py	Tue Aug 15 16:48:49 2017 +0300
@@ -57,11 +57,11 @@
         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|
-                    wx.TR_LINES_AT_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__':
             self.Bind(wx.EVT_TREE_ITEM_ACTIVATED, self.OnTreeItemExpanded, self.Tree)