[Mac] Background color should be white

[Stani]

When Phatch starts up on Mac OS X, it shows a system color, but should be white.

[Stani (stani)]

$ bzr diff
=== modified file 'phatch/lib/pyWx/paint.py'
--- phatch/lib/pyWx/paint.py 2010-03-12 16:50:59 +0000
+++ phatch/lib/pyWx/paint.py 2010-03-15 15:25:35 +0000
@@ -41,6 +41,8 @@
             rect = paint_object.GetUpdateRegion().GetBox()
             _dc.SetClippingRect(rect)
         dc = GCDC(_dc)
+ dc.SetBackground(wx.Brush(paint_object.GetBackgroundColour(),
+ wx.SOLID))
         dc.Clear()
         # Calculate text extents.
         paint_message = self.GetPaintMessage()

stani@x9150:~/sync/python/phatch/repo/trunk$ bzr commit
Committing to: /home/stani/sync/python/phatch/repo/trunk/
modified phatch/lib/pyWx/paint.py
                                                                                3/5
Ran 156 license tests in 0.133s
----------------------------------------------------------------------
Ran 62 tests in 0.242s

OK
----------------------------------------------------------------------
Ran 154 PEP8 tests in 0.097s

Ran precommit tests in 1.711s

Committed revision 1829.
$ bzr push
Using saved push location: bzr+ssh://bazaar.launchpad.net/~stani/phatch/trunk/
Pushed up to revision 1829.