#GThemedIcon is an implementation of #GIcon that supports icon themes. #GThemedIcon contains a list of all of the icons present in an icon theme, so that icons can be looked up quickly. #GThemedIcon does not provide actual pixmaps for icons, just the icon names. Ideally something like gtk_icon_theme_choose_icon() should be used to resolve the list of names so that fallback icons work nicely with themes that inherit other themes.