gtk/style.go
func (v *Widget) GetStyleContext() (*StyleContext, error) {
	return fromNativeStyleContext(C.gtk_widget_get_style_context(v.native()))
}
func (v *Widget) GetStyleContext() (*StyleContext, error) {
	return fromNativeStyleContext(C.gtk_widget_get_style_context(v.native()))
}
// GetStyleContext is a wrapper around gtk_widget_get_style_context().