+extern XColor g_itemColors[];
+extern int wxComputeColours (Display *display, wxColour * back, wxColour * fore);
+
+extern void wxDoChangeForegroundColour(WXWidget widget, wxColour& foregroundColour);
+extern void wxDoChangeBackgroundColour(WXWidget widget, wxColour& backgroundColour, bool changeArmColour = FALSE);