Index: src/main-window.c
===================================================================
--- src/main-window.c	(revision 8010)
+++ src/main-window.c	(working copy)
@@ -926,7 +926,9 @@
                           "ythickness = 0\n"
                         "}\n"
                         "widget \"*.balsa-notebook-tab-button\"\n"
-                        "style    \"balsa-notebook-tab-button-style\"");
+                        "style    \"balsa-notebook-tab-button-style\"\n"
+                        /* To use Gnome icons on a nonGnome system: */
+                        "gtk-icon-theme-name = \"gnome\"\n");
 
     window_signals[OPEN_MAILBOX_NODE] =
         g_signal_new("open_mailbox_node",
