beremiz

Fix problem introduced in 9c5f835b031e : Exception in LDPowerRailDialog.py because of change in OnPaint/RefreshView/DrawPreview.
<?xml version='1.0' encoding='utf-8'?>
<BaseParams xmlns:xsd="http://www.w3.org/2001/XMLSchema" IEC_Channel="2" Name="py_ext_0"/>