Index: work/gtk/layersel/layersel.c
===================================================================
--- work/gtk/layersel/layersel.c	(revision 8545)
+++ work/gtk/layersel/layersel.c	(revision 8546)
@@ -87,7 +87,7 @@
 
 static void group_vis_sync(layersel_grp_t *lsg)
 {
-	if (lsg->on) {
+	if (lsg->open) {
 		int n;
 		pcb_gtk_widget_hide_all(lsg->grp_closed);
 		gtk_widget_set_no_show_all(lsg->grp_open, 0);
@@ -165,11 +165,11 @@
 	return TRUE;
 }
 
-static gboolean group_any_press_cb(GtkWidget *widget, GdkEvent *event, layersel_grp_t *lsg, int onval)
+static gboolean group_any_press_cb(GtkWidget *widget, GdkEvent *event, layersel_grp_t *lsg, int openval)
 {
 	switch(event->button.button) {
 		case 1:
-			lsg->on = onval;
+			lsg->open = openval;
 			group_vis_sync(lsg);
 			break;
 		case 3:
Index: work/gtk/layersel/layersel.h
===================================================================
--- work/gtk/layersel/layersel.h	(revision 8545)
+++ work/gtk/layersel/layersel.h	(revision 8546)
@@ -21,7 +21,8 @@
 
 	layersel_layer_t layer[4];
 
-	unsigned on:1;
+	unsigned on:1;    /* central visibility (toggles all layers) */
+	unsigned open:1;  /* whether group is expanded, layers are visible */
 
 	/* for callbacks */
 	pcb_gtk_layersel_t *ls;  /* points to parent */
Index: work/gtk/layersel/layersel_demo.c
===================================================================
--- work/gtk/layersel/layersel_demo.c	(revision 8545)
+++ work/gtk/layersel/layersel_demo.c	(revision 8546)
@@ -11,10 +11,10 @@
 	pcb_gtk_layersel_t ls;
 
 	memset(&ls, 0, sizeof(ls));
-	ls.grp[0].on = 1;
-	ls.grp[1].on = 1;
-	ls.grp[2].on = 1;
-	ls.grp[3].on = 1;
+	ls.grp[0].open = 1;
+	ls.grp[1].open = 1;
+	ls.grp[2].open = 1;
+	ls.grp[3].open = 1;
 
 	/* Initialize the widget set */
 	gtk_init(&argc, &argv);