// Called by ApplyWidgetStyle (which is called by SetFont() and
// SetXXXColour etc to apply style changed to native widgets) to create
// modified GTK style with non-standard attributes. If forceStyle=true,
// Called by ApplyWidgetStyle (which is called by SetFont() and
// SetXXXColour etc to apply style changed to native widgets) to create
// modified GTK style with non-standard attributes. If forceStyle=true,