diff --git a/wxPython/demo/GridHugeTable.py b/wxPython/demo/GridHugeTable.py
index a2084fb6e3..87bcc3279b 100644
--- a/wxPython/demo/GridHugeTable.py
+++ b/wxPython/demo/GridHugeTable.py
@@ -16,6 +16,16 @@ class HugeTable(wxPyGridTableBase):
         wxPyGridTableBase.__init__(self)
         self.log = log
 
+        self.odd=wxGridCellAttr()
+        self.odd.SetBackgroundColour("sky blue")
+        self.even=wxGridCellAttr()
+        self.even.SetBackgroundColour("sea green")
+
+     def GetAttr(self, row, col, kind):
+        attr = [self.even, self.odd][row % 2]
+        attr.IncRef()
+        return attr
+
     def GetNumberRows(self):
         return 10000