http://library.gnome.org/devel/gtk/stable/GtkIconTheme.html, using gtk_icon_theme_lookup_icon() with the fallback flag set should be working, the spec has also be updated to use audio-volume-low-null which should fallback nicely
http:// library. gnome.org/ devel/gtk/ stable/ GtkIconTheme. html, using gtk_icon_ theme_lookup_ icon() with the fallback flag set should be working, the spec has also be updated to use audio-volume- low-null which should fallback nicely