Index: trunk/src/draw.c
===================================================================
--- trunk/src/draw.c	(revision 34124)
+++ trunk/src/draw.c	(revision 34125)
@@ -465,10 +465,24 @@
 static void xform_setup(pcb_draw_info_t *info, rnd_xform_t *dst, const pcb_layer_t *Layer)
 {
 	info->layer = Layer;
+	int copied = 0;
+
+	/* layer-specific transformations */
 	if ((Layer != NULL) && (!pcb_xform_is_nop(&Layer->meta.real.xform))) {
 		pcb_xform_copy(dst, &Layer->meta.real.xform);
 		info->xform = dst;
+		copied = 1;
 	}
+
+	/* ... plus only in GUI mode: per layer GUI modifications */
+	if ((Layer != NULL) && (rnd_render == rnd_gui) && (!pcb_xform_is_nop(&Layer->meta.real.gui_xform))) {
+		if (copied)
+			pcb_xform_add(dst, &Layer->meta.real.gui_xform);
+		else
+			pcb_xform_copy(dst, &Layer->meta.real.gui_xform);
+		info->xform = dst;
+	}
+
 	if (info->xform_caller != NULL) {
 		if (info->xform == NULL) {
 			info->xform = dst;
Index: trunk/src/gui_act.c
===================================================================
--- trunk/src/gui_act.c	(revision 34124)
+++ trunk/src/gui_act.c	(revision 34125)
@@ -1580,9 +1580,9 @@
 #define XFORM_BOOL(ly, how, field) \
 do { \
 	switch(how) { \
-		case F_Set:     ly->meta.real.xform.field = 1; break; \
-		case F_Clear:   ly->meta.real.xform.field = 0; break; \
-		case F_Toggle:  ly->meta.real.xform.field = !ly->meta.real.xform.field; break; \
+		case F_Set:     ly->meta.real.gui_xform.field = 1; break; \
+		case F_Clear:   ly->meta.real.gui_xform.field = 0; break; \
+		case F_Toggle:  ly->meta.real.gui_xform.field = !ly->meta.real.gui_xform.field; break; \
 		default: return FGW_ERR_ARG_CONV; \
 	} \
 	rnd_event(RND_ACT_HIDLIB, PCB_EVENT_LAYERVIS_CHANGED, NULL); \
Index: trunk/src/layer.h
===================================================================
--- trunk/src/layer.h	(revision 34124)
+++ trunk/src/layer.h	(revision 34125)
@@ -142,6 +142,7 @@
 			int no_drc;                    /* whether to ignore the layer when checking the design rules */
 			const char *cookie;            /* for UI layers: registration cookie; NULL for unused UI layers */
 			rnd_xform_t xform;             /* layer specified rendering transformation */
+			rnd_xform_t gui_xform;         /* GUI-render only layer specified rendering transformation */
 		} real;
 		struct { /* A subcircuit layer binding; list data are local but everything else is coming from board layers */
 			pcb_layer_t *real;             /* NULL if unbound */
Index: trunk/src_plugins/lib_hid_pcbui/layersel.c
===================================================================
--- trunk/src_plugins/lib_hid_pcbui/layersel.c	(revision 34124)
+++ trunk/src_plugins/lib_hid_pcbui/layersel.c	(revision 34125)
@@ -291,7 +291,7 @@
 	rnd_gui->attr_dlg_widget_hide(lys->ls->sub.dlg_hid_ctx, lys->wvis_off_closed, !!vis);
 
 	if (ly != NULL)
-		is_spec = (ly->meta.real.xform.thin_draw || ly->meta.real.xform.wireframe);
+		is_spec = (ly->meta.real.gui_xform.thin_draw || ly->meta.real.gui_xform.wireframe);
 
 	rnd_gui->attr_dlg_widget_hide(lys->ls->sub.dlg_hid_ctx, lys->wspec, !is_spec);
 }