diff -r a63bb4025852 -r 8043f32de7b8 editors/ConfTreeNodeEditor.py
--- a/editors/ConfTreeNodeEditor.py	Fri Jun 09 18:12:12 2017 +0300
+++ b/editors/ConfTreeNodeEditor.py	Mon Jun 19 18:49:43 2017 +0300
@@ -5,6 +5,7 @@
 # programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
 #
 # Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
+# Copyright (C) 2017: Andrey Skvortsov <andrej.skvortzov@gmail.com>
 #
 # See COPYING file for copyrights details.
 #
@@ -380,8 +381,7 @@
                             value_infos = None
                         browse_boxsizer.AddWindow(textctrl)
 
-                        button = wx.Button(self.ParamsEditor,
-                              label="...", size=wx.Size(25, 25))
+                        button = wx.Button(self.ParamsEditor, label="...")
                         browse_boxsizer.AddWindow(button)
                         button.Bind(wx.EVT_BUTTON,
                                     self.GetBrowseCallBackFunction(element_infos["name"], textctrl, element_infos["type"],