diff -r 0eb9f8af479f -r 47131e3388f4 editors/ConfTreeNodeEditor.py
--- a/editors/ConfTreeNodeEditor.py	Fri Jul 26 14:04:29 2013 +0900
+++ b/editors/ConfTreeNodeEditor.py	Fri Aug 02 08:55:45 2013 +0900
@@ -3,7 +3,6 @@
 import types
 
 import wx
-import wx.lib.buttons
 
 from EditorPanel import EditorPanel
 
@@ -35,22 +34,6 @@
 def Bpath(*args):
     return os.path.join(CWD,*args)
 
-# Patch wx.lib.imageutils so that gray is supported on alpha images
-import wx.lib.imageutils
-from wx.lib.imageutils import grayOut as old_grayOut
-def grayOut(anImage):
-    if anImage.HasAlpha():
-        AlphaData = anImage.GetAlphaData()
-    else :
-        AlphaData = None
-
-    old_grayOut(anImage)
-
-    if AlphaData is not None:
-        anImage.SetAlphaData(AlphaData)
-
-wx.lib.imageutils.grayOut = grayOut
-
 class GenBitmapTextButton(wx.lib.buttons.GenBitmapTextButton):
     def _GetLabelSize(self):
         """ used internally """