diff -ur clearlooks.org/src/clearlooks_style.c clearlooks/src/clearlooks_style.c
--- clearlooks.org/src/clearlooks_style.c	2005-11-13 20:08:34.000000000 +0100
+++ clearlooks/src/clearlooks_style.c	2005-11-13 20:37:40.000000000 +0100
@@ -35,6 +35,9 @@
 #ifdef HAVE_ANIMATION
 static GList *progressbars = NULL;
 static int timer_id = 0;
+static GList *checks = NULL;
+static gint8 checks_trans = 2;
+static int checks_timer_id = 0;
 #endif
 
 static gint8 pboffset = 0;
@@ -116,6 +119,66 @@
 }
 #endif
 
+#ifdef HAVE_ANIMATION
+static void cl_checks_remove (gpointer data)
+{
+        if (g_list_find (checks, data) == NULL)
+                return;
+        
+        checks = g_list_remove (checks, data);
+        g_object_unref (data);
+        if (g_list_first(checks) == NULL) {
+                g_source_remove(checks_timer_id);
+                checks_timer_id = 0;
+        }
+}
+
+static void cl_update_checks (gpointer data, gpointer user_data)
+{
+        if (data == NULL)
+                return;
+	if (checks_trans > 10)
+		cl_checks_remove(data);
+	
+	gtk_widget_queue_resize ((GtkWidget*)data);
+}
+
+static gboolean cl_checks_known(gconstpointer data)
+{
+        return (g_list_find (checks, data) != NULL);
+}
+
+static gboolean cl_checks_timer_func (gpointer data)
+{
+        g_list_foreach (checks, cl_update_checks, NULL);
+
+        if (++checks_trans > 11)
+        	checks_trans = 2; 
+	return (g_list_first(checks) != NULL);
+}
+
+static void cl_checks_add (gpointer data)
+{
+	if (!GTK_IS_CHECK_BUTTON (data))
+                return;
+
+	if(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(data)))
+		checks_trans = 2;
+	else
+		return;
+                
+	if(!cl_checks_known(data))
+		checks = g_list_append (checks, data);
+	else
+		return;
+
+	g_object_ref (data);
+        g_signal_connect ((GObject*)data, "unrealize", G_CALLBACK (cl_checks_remove), data);
+	if (checks_timer_id == 0)
+                checks_timer_id = g_timeout_add (100, cl_checks_timer_func, NULL);
+}
+#endif
+
 static void
 clearlooks_set_widget_parameters (const GtkWidget      *widget,
                                   const GtkStyle       *style,
@@ -875,10 +938,24 @@
 	ClearlooksStyle *clearlooks_style = CLEARLOOKS_STYLE (style);
 	CairoColor *border;
 	CairoColor *dot;
+#ifdef HAVE_ANIMATION	
+	double trans;
+#endif
 
 	cairo_t *cr = clearlooks_begin_paint (window, area);
 	cairo_pattern_t *pt;
 
+#ifdef HAVE_ANIMATION
+	if(clearlooks_style->animation)
+	{
+		if (!cl_checks_known((gconstpointer)widget))
+			g_signal_connect ((GObject*)widget, "toggled", G_CALLBACK (cl_checks_add), widget);
+	}
+	else
+		if (cl_checks_known((gconstpointer)widget))
+			cl_checks_remove((gconstpointer)widget);
+#endif
+
 	if (state_type == GTK_STATE_INSENSITIVE)
 	{
 		border = &clearlooks_style->colors.shade[2];
@@ -925,7 +1002,15 @@
 		cairo_curve_to (cr, 0.5 + (width*0.4), (height*0.7),
 		                    0.5 + (width*0.5), (height*0.4),
 		                    0.5 + (width*0.70), (height*0.25));
+#ifdef HAVE_ANIMATION
+		if ((checks_trans > 9)||(!cl_checks_known((gconstpointer)widget)))
+			trans = 1;
+		else
+			trans = (float)checks_trans/10;
+		cairo_set_source_rgba (cr, dot->r, dot->g, dot->b,  trans);
+#else
 		cairo_set_source_rgb (cr, dot->r, dot->g, dot->b);
+#endif
 		cairo_stroke (cr);
 	}