use NormalizeFontSizes if on wxGTK2

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@28651 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/demo/About.py

@@ -46,6 +46,8 @@ demo item so you can learn how to use the classes yourself.</p>
     def __init__(self, parent):
         wx.Dialog.__init__(self, parent, -1, 'About the wxPython demo',)
         html = wx.html.HtmlWindow(self, -1, size=(420, -1))
+        if "gtk2" in wx.PlatformInfo:
+            html.NormalizeFontSizes()
         py_version = sys.version.split()[0]
         html.SetPage(self.text % (wx.VERSION_STRING, py_version))
         btn = html.FindWindowById(wx.ID_OK)