/**
* gtk_image_new_from_icon_name:
- * @icon_name: an icon name
+ * @icon_name: (nullable): an icon name or %NULL
* @size: (type int): a stock icon size (#GtkIconSize)
*
* Creates a #GtkImage displaying an icon from the current icon theme.
/**
* gtk_image_set_from_icon_name:
* @image: a #GtkImage
- * @icon_name: an icon name
+ * @icon_name: (nullable): an icon name or %NULL
* @size: (type int): an icon size (#GtkIconSize)
*
* See gtk_image_new_from_icon_name() for details.