+#ifdef __WXMAC__
+ // The app workspace colour is always white, but we should have
+ // a contrast with the page.
+ wxSystemColour colourIndex = wxSYS_COLOUR_3DDKSHADOW;
+#else
+ wxSystemColour colourIndex = wxSYS_COLOUR_APPWORKSPACE;
+#endif
+ SetBackgroundColour(wxSystemSettings::GetColour(colourIndex));