diff --git a/devel.but b/devel.but
index 1df57cf..e481ec6 100644
--- a/devel.but
+++ b/devel.but
@@ -2728,6 +2728,16 @@ are owned by the mid-end structure: the front end should not ever
 free them directly, because they will be freed automatically during
 \cw{midend_free()}.
 
+\H{midend-which-preset} \cw{midend_which_preset()}
+
+\c int midend_which_preset(midend *me);
+
+Returns the numeric index of the preset game parameter structure
+which matches the current game parameters, or a negative number if
+no preset matches. Front ends could use this to maintain a tick
+beside one of the items in the menu (or tick the \q{Custom} option
+if the return value is less than zero).
+
 \H{midend-wants-statusbar} \cw{midend_wants_statusbar()}
 
 \c int midend_wants_statusbar(midend *me);
diff --git a/gtk.c b/gtk.c
index c7713a1..1f991d6 100644
--- a/gtk.c
+++ b/gtk.c
@@ -79,6 +79,8 @@ void fatal(char *fmt, ...)
  * GTK front end to puzzles.
  */
 
+static void update_preset_tick(frontend *fe);
+
 struct font {
 #ifdef USE_PANGO
     PangoFontDescription *desc;
@@ -122,6 +124,9 @@ struct frontend {
     int pw, ph;                        /* pixmap size (w, h are area size) */
     int ox, oy;                        /* offset of pixmap in drawing area */
     char *filesel_name;
+    int npresets;
+    GtkWidget **preset_bullets;
+    GtkWidget *preset_custom_bullet;
 };
 
 void get_random_seed(void **randseed, int *randseedsize)
@@ -844,6 +849,7 @@ static void config_ok_button_clicked(GtkButton *button, gpointer data)
     else {
 	fe->cfgret = TRUE;
 	gtk_widget_destroy(fe->cfgbox);
+	update_preset_tick(fe);
     }
 }
 
@@ -1100,6 +1106,29 @@ static void get_size(frontend *fe, int *px, int *py)
 	gdk_window_resize(GTK_WIDGET(win)->window, x, y)
 #endif
 
+static void update_menuitem_bullet(GtkWidget *label, int visible)
+{
+    if (visible) {
+	gtk_label_set_text(GTK_LABEL(label), "\xE2\x80\xA2");
+    } else {
+	gtk_label_set_text(GTK_LABEL(label), "");
+    }
+}
+
+static void update_preset_tick(frontend *fe)
+{
+    int n = midend_which_preset(fe->me);
+    int i;
+
+    if (fe->preset_bullets) {
+	for (i = 0; i < fe->npresets; i++)
+	    update_menuitem_bullet(fe->preset_bullets[i], n == i);
+    }
+    if (fe->preset_custom_bullet) {
+	update_menuitem_bullet(fe->preset_custom_bullet, n < 0);
+    }
+}
+
 static void resize_fe(frontend *fe)
 {
     int x, y;
@@ -1129,6 +1158,7 @@ static void menu_preset_event(GtkMenuItem *menuitem, gpointer data)
 
     midend_set_params(fe->me, params);
     midend_new_game(fe->me);
+    update_preset_tick(fe);
     resize_fe(fe);
 }
 
@@ -1358,6 +1388,7 @@ static void menu_load_event(GtkMenuItem *menuitem, gpointer data)
             return;
         }
 
+	update_preset_tick(fe);
         resize_fe(fe);
     }
 }
@@ -1448,6 +1479,34 @@ static void add_menu_separator(GtkContainer *cont)
 
 enum { ARG_EITHER, ARG_SAVE, ARG_ID }; /* for argtype */
 
+static GtkWidget *make_preset_menuitem(GtkWidget **bulletlabel,
+				       const char *name)
+{
+    GtkWidget *hbox, *lab1, *lab2, *menuitem;
+    GtkRequisition req;
+
+    hbox = gtk_hbox_new(FALSE, 0);
+    gtk_widget_show(hbox);
+    lab1 = gtk_label_new("\xE2\x80\xA2 ");
+    gtk_widget_show(lab1);
+    gtk_box_pack_start(GTK_BOX(hbox), lab1, FALSE, FALSE, 0);
+    gtk_misc_set_alignment(GTK_MISC(lab1), 0.0, 0.0);
+    lab2 = gtk_label_new(name);
+    gtk_widget_show(lab2);
+    gtk_box_pack_start(GTK_BOX(hbox), lab2, TRUE, TRUE, 0);
+    gtk_misc_set_alignment(GTK_MISC(lab2), 0.0, 0.0);
+
+    gtk_widget_size_request(lab1, &req);
+    gtk_widget_set_usize(lab1, req.width, -1);
+    gtk_label_set_text(GTK_LABEL(lab1), "");
+
+    menuitem = gtk_menu_item_new();
+    gtk_container_add(GTK_CONTAINER(menuitem), hbox);
+
+    *bulletlabel = lab1;
+    return menuitem;
+}
+
 static frontend *new_window(char *arg, int argtype, char **error)
 {
     frontend *fe;
@@ -1583,13 +1642,17 @@ static frontend *new_window(char *arg, int argtype, char **error)
         submenu = gtk_menu_new();
         gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu);
 
+	fe->npresets = n;
+	fe->preset_bullets = snewn(n, GtkWidget *);
+
         for (i = 0; i < n; i++) {
             char *name;
             game_params *params;
 
             midend_fetch_preset(fe->me, i, &name, &params);
 
-            menuitem = gtk_menu_item_new_with_label(name);
+	    menuitem = make_preset_menuitem(&fe->preset_bullets[i], name);
+
             gtk_container_add(GTK_CONTAINER(submenu), menuitem);
             gtk_object_set_data(GTK_OBJECT(menuitem), "user-data", params);
             gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
@@ -1598,14 +1661,23 @@ static frontend *new_window(char *arg, int argtype, char **error)
         }
 
 	if (thegame.can_configure) {
-            menuitem = gtk_menu_item_new_with_label("Custom...");
+	    menuitem = make_preset_menuitem(&fe->preset_custom_bullet,
+					    "Custom...");
+
+            gtk_container_add(GTK_CONTAINER(submenu), menuitem);
             gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
 				GPOINTER_TO_INT(CFG_SETTINGS));
-            gtk_container_add(GTK_CONTAINER(submenu), menuitem);
             gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
                                GTK_SIGNAL_FUNC(menu_config_event), fe);
             gtk_widget_show(menuitem);
-	}
+	} else
+	    fe->preset_custom_bullet = NULL;
+
+	update_preset_tick(fe);
+    } else {
+	fe->npresets = 0;
+	fe->preset_bullets = NULL;
+	fe->preset_custom_bullet = NULL;
     }
 
     add_menu_separator(GTK_CONTAINER(menu));
diff --git a/midend.c b/midend.c
index 250a479..87df28a 100644
--- a/midend.c
+++ b/midend.c
@@ -31,7 +31,7 @@ struct midend {
     const game *ourgame;
 
     game_params **presets;
-    char **preset_names;
+    char **preset_names, **preset_encodings;
     int npresets, presetsize;
 
     /*
@@ -115,6 +115,7 @@ midend *midend_new(frontend *fe, const game *ourgame,
     me->oldstate = NULL;
     me->presets = NULL;
     me->preset_names = NULL;
+    me->preset_encodings = NULL;
     me->npresets = me->presetsize = 0;
     me->anim_time = me->anim_pos = 0.0F;
     me->flash_time = me->flash_pos = 0.0F;
@@ -186,9 +187,11 @@ void midend_free(midend *me)
 	for (i = 0; i < me->npresets; i++) {
 	    sfree(me->presets[i]);
 	    sfree(me->preset_names[i]);
+	    sfree(me->preset_encodings[i]);
 	}
 	sfree(me->presets);
 	sfree(me->preset_names);
+	sfree(me->preset_encodings);
     }
     if (me->ui)
         me->ourgame->free_ui(me->ui);
@@ -836,10 +839,14 @@ int midend_num_presets(midend *me)
                                       game_params *);
                 me->preset_names = sresize(me->preset_names, me->presetsize,
                                            char *);
+                me->preset_encodings = sresize(me->preset_encodings,
+					       me->presetsize, char *);
             }
 
             me->presets[me->npresets] = preset;
             me->preset_names[me->npresets] = name;
+            me->preset_encodings[me->npresets] =
+		me->ourgame->encode_params(preset, TRUE);;
             me->npresets++;
         }
     }
@@ -890,10 +897,14 @@ int midend_num_presets(midend *me)
                                           game_params *);
                     me->preset_names = sresize(me->preset_names,
                                                me->presetsize, char *);
+                    me->preset_encodings = sresize(me->preset_encodings,
+						   me->presetsize, char *);
                 }
 
                 me->presets[me->npresets] = preset;
                 me->preset_names[me->npresets] = dupstr(name);
+                me->preset_encodings[me->npresets] =
+		    me->ourgame->encode_params(preset, TRUE);
                 me->npresets++;
             }
         }
@@ -910,6 +921,22 @@ void midend_fetch_preset(midend *me, int n,
     *params = me->presets[n];
 }
 
+int midend_which_preset(midend *me)
+{
+    char *encoding = me->ourgame->encode_params(me->params, TRUE);
+    int i, ret;
+
+    ret = -1;
+    for (i = 0; i < me->npresets; i++)
+	if (!strcmp(encoding, me->preset_encodings[i])) {
+	    ret = i;
+	    break;
+	}
+
+    sfree(encoding);
+    return ret;
+}
+
 int midend_wants_statusbar(midend *me)
 {
     return me->ourgame->wants_statusbar;
diff --git a/puzzles.h b/puzzles.h
index 2a9f517..1c5342d 100644
--- a/puzzles.h
+++ b/puzzles.h
@@ -235,6 +235,7 @@ void midend_timer(midend *me, float tplus);
 int midend_num_presets(midend *me);
 void midend_fetch_preset(midend *me, int n,
                          char **name, game_params **params);
+int midend_which_preset(midend *me);
 int midend_wants_statusbar(midend *me);
 enum { CFG_SETTINGS, CFG_SEED, CFG_DESC, CFG_FRONTEND_SPECIFIC };
 config_item *midend_get_config(midend *me, int which, char **wintitle);