Index: work/gtk/layersel/layersel.c
===================================================================
--- work/gtk/layersel/layersel.c	(revision 8534)
+++ work/gtk/layersel/layersel.c	(revision 8535)
@@ -3,8 +3,9 @@
 #include "layersel.h"
 #include "lib_gtk_common/compat.h"
 
-#warning TEMPORARY HACK:
+#warning TEMPORARY HACKs:
 #define pcb_hid_actionl(a, b, c) printf("action: " a b "\n")
+static layersel_layer_t *current = NULL;
 
 /*** Layer visibility widget rendering ***/
 #define set_pixel(dst, r, g, b, a) \
@@ -78,6 +79,10 @@
 		gtk_widget_show(lsl->vis_off);
 		gtk_widget_hide(lsl->vis_on);
 	}
+	if (lsl == current)
+		pcb_gtk_set_bg_color(lsl->name_box, 65535, 0, 0);
+	else
+		pcb_gtk_set_bg_color(lsl->name_box, 50000, 50000, 50000);
 }
 
 static void group_vis_sync(layersel_grp_t *lsg)
@@ -119,11 +124,14 @@
 
 static gboolean layer_select_press_cb(GtkWidget *widget, GdkEvent *event, gpointer user_data)
 {
-	layersel_layer_t *lsl = user_data;
+	layersel_layer_t *lsl = user_data, *old_curr;
 	switch(event->button.button) {
 		case 1:
 			printf("layer select!\n");
-#warning TODO: refresh both old selection and new selection
+			old_curr = current;
+			current = lsl;
+			if (old_curr != NULL)
+				layer_vis_sync(old_curr);
 			layer_vis_sync(lsl);
 			break;
 		case 3:
@@ -170,7 +178,7 @@
 
 static GtkWidget *build_layer(layersel_grp_t *lsg, layersel_layer_t *lsl, const char *name)
 {
-	GtkWidget *vis_box, *vis_ebox, *ly_name, *ly_name_bx, *lab;
+	GtkWidget *vis_box, *vis_ebox, *ly_name_bx, *lab;
 
 	lsl->lsg = lsg;
 	lsl->box = gtkc_hbox_new(0, 0);
@@ -185,18 +193,11 @@
 	gtk_box_pack_start(GTK_BOX(lsl->box), vis_ebox, FALSE, FALSE, 0);
 
 	ly_name_bx = gtkc_hbox_new(0, 0);
-	ly_name = wrap_bind_click(ly_name_bx, G_CALLBACK(layer_select_press_cb), lsl);
+	lsl->name_box = wrap_bind_click(ly_name_bx, G_CALLBACK(layer_select_press_cb), lsl);
 
-{ /* temporary example on selection visualisation */
-	static int ctr = 0;
-	ctr++;
-	if (ctr == 4)
-		pcb_gtk_set_bg_color(ly_name, 65535, 0, 0);
-}
-
 	lab = gtk_label_new(name);
 	gtk_box_pack_start(GTK_BOX(ly_name_bx), lab, TRUE, TRUE, 0);
-	gtk_box_pack_start(GTK_BOX(lsl->box), ly_name, TRUE, TRUE, 10);
+	gtk_box_pack_start(GTK_BOX(lsl->box), lsl->name_box, TRUE, TRUE, 10);
 
 	gtk_misc_set_alignment(GTK_MISC(lab), 0, 0.5);
 
Index: work/gtk/layersel/layersel.h
===================================================================
--- work/gtk/layersel/layersel.h	(revision 8534)
+++ work/gtk/layersel/layersel.h	(revision 8535)
@@ -8,7 +8,7 @@
 typedef struct layersel_layer_s layersel_layer_t;
 
 struct layersel_layer_s {
-	GtkWidget *box, *vis_on, *vis_off;
+	GtkWidget *box, *vis_on, *vis_off, *name_box;
 
 	unsigned on:1; /* TODO: temporary hack: should be extracted from the layer struct */