Index: trunk/src/draw.c
===================================================================
--- trunk/src/draw.c	(revision 29416)
+++ trunk/src/draw.c	(revision 29417)
@@ -346,6 +346,8 @@
 	if (info->xform_caller == NULL) {
 		info->xform = info->xform_caller = &xf_def;
 		info->xform->wireframe = conf_core.editor.wireframe_draw;
+		info->xform->thin_draw = conf_core.editor.thin_draw;
+		info->xform->thin_draw_poly = conf_core.editor.thin_draw_poly;
 	}
 
 	backsilk_gid = ((!conf_core.editor.show_solder_side) ? pcb_layergrp_get_bottom_silk() : pcb_layergrp_get_top_silk());
Index: trunk/src/draw_ly_spec.c
===================================================================
--- trunk/src/draw_ly_spec.c	(revision 29416)
+++ trunk/src/draw_ly_spec.c	(revision 29417)
@@ -56,7 +56,7 @@
 	cctx.info = info;
 	cctx.gid = gid;
 	cctx.color = ly != NULL ? &ly->meta.real.color : &conf_core.appearance.color.paste;
-	cctx.thin = conf_core.editor.thin_draw || conf_core.editor.thin_draw_poly || info->xform->wireframe;
+	cctx.thin = (info->xform != NULL) && (info->xform->thin_draw || info->xform->thin_draw_poly || info->xform->wireframe);
 	cctx.invert = 0;
 
 	if ((cctx.grp == NULL) || (cctx.grp->len == 0)) { /* fallback: no layers -> original code: draw a single auto-add */
@@ -94,7 +94,7 @@
 	cctx.info = info;
 	cctx.gid = gid;
 	cctx.color = ly != NULL ? &ly->meta.real.color : &conf_core.appearance.color.mask;
-	cctx.thin = conf_core.editor.thin_draw || conf_core.editor.thin_draw_poly || info->xform->wireframe;
+	cctx.thin = (info->xform != NULL) && (info->xform->thin_draw || info->xform->thin_draw_poly || info->xform->wireframe);
 	cctx.invert = pcb_render->mask_invert;
 
 	if (!cctx.invert)
@@ -173,7 +173,7 @@
 			continue;
 		lid = cctx.grp->lid[0];
 		cctx.color = invis ? &conf_core.appearance.color.invisible_objects : &info->pcb->Data->Layer[lid].meta.real.color;
-		cctx.thin = conf_core.editor.thin_draw || conf_core.editor.thin_draw_poly || info->xform->wireframe;
+		cctx.thin = (info->xform != NULL) && (info->xform->thin_draw || info->xform->thin_draw_poly || info->xform->wireframe);
 		cctx.invert = 0;
 
 		if ((lyt_type & PCB_LYT_SILK) && (pcb_is_silk_old_style(&cctx, lid))) {
Index: trunk/src/obj_arc.c
===================================================================
--- trunk/src/obj_arc.c	(revision 29416)
+++ trunk/src/obj_arc.c	(revision 29417)
@@ -1003,7 +1003,7 @@
 
 	PCB_DRAW_BBOX(arc);
 
-	if (!conf_core.editor.thin_draw && !info->xform->wireframe)
+	if (!info->xform->thin_draw && !info->xform->wireframe)
 	{
 		if ((allow_term_gfx) && pcb_draw_term_need_gfx(arc) && pcb_draw_term_hid_permission()) {
 			pcb_hid_set_line_cap(pcb_draw_out.active_padGC, pcb_cap_round);
@@ -1021,7 +1021,7 @@
 		pcb_hid_set_line_width(pcb_draw_out.fgGC, 0);
 		pcb_hid_set_line_cap(pcb_draw_out.fgGC, pcb_cap_round);
 
-		if(conf_core.editor.thin_draw)
+		if(info->xform->thin_draw)
 			pcb_render->draw_arc(pcb_draw_out.fgGC, arc->X, arc->Y, arc->Width, arc->Height, arc->StartAngle, arc->Delta);
 
 		if(info->xform->wireframe)
Index: trunk/src/obj_common.h
===================================================================
--- trunk/src/obj_common.h	(revision 29416)
+++ trunk/src/obj_common.h	(revision 29417)
@@ -99,6 +99,8 @@
 	unsigned partial_export:1;   /* 1 if only objects with the EXPORTSEL flag should be drawn */
 	unsigned no_slot_in_nonmech:1; /* if 1, do not draw slots on non-mechanical layers (e.g. "no slot in copper") */
 	unsigned wireframe:1;        /* when 1, draw wireframe contours instead of solid objects */
+	unsigned thin_draw:1;        /* when 1, draw thin centerline instead of solid objects (implies thin_draw_poly) */
+	unsigned thin_draw_poly:1;   /* when 1, draw thin countour instead of solid polygons */
 	/* WARNING: After adding new fields, make sure to update pcb_xform_add() and pcb_xform_is_nop() below */
 };
 
@@ -114,8 +116,18 @@
 		__dst__->partial_export |= __src__->partial_export; \
 		__dst__->no_slot_in_nonmech |= __src__->no_slot_in_nonmech; \
 		__dst__->wireframe |= __src__->wireframe; \
+		__dst__->thin_draw |= __src__->thin_draw; \
+		__dst__->thin_draw_poly |= __src__->thin_draw_poly; \
 	} while(0)
-#define pcb_xform_is_nop(src) (((src)->bloat == 0) && ((src)->layer_faded == 0) && ((src)->omit_overlay == 0) && ((src)->partial_export == 0) && ((src)->no_slot_in_nonmech == 0) && ((src)->wireframe == 0))
+#define pcb_xform_is_nop(src) (\
+	((src)->bloat == 0) && \
+	((src)->layer_faded == 0) && \
+	((src)->omit_overlay == 0) && ((src)->partial_export == 0) && \
+	((src)->no_slot_in_nonmech == 0) && \
+	((src)->wireframe == 0) && \
+	((src)->thin_draw == 0) && \
+	((src)->thin_draw_poly == 0) \
+	)
 
 /* Returns true if overlay drawing should be omitted */
 #define pcb_xform_omit_overlay(info) \
Index: trunk/src/obj_line.c
===================================================================
--- trunk/src/obj_line.c	(revision 29416)
+++ trunk/src/obj_line.c	(revision 29417)
@@ -1118,7 +1118,7 @@
 
 	PCB_DRAW_BBOX(line);
 	pcb_hid_set_line_cap(pcb_draw_out.fgGC, pcb_cap_round);
-	if (!conf_core.editor.thin_draw && !info->xform->wireframe) {
+	if (!info->xform->thin_draw && !info->xform->wireframe) {
 		if ((allow_term_gfx) && pcb_draw_term_need_gfx(line) && pcb_draw_term_hid_permission()) {
 			pcb_hid_set_line_cap(pcb_draw_out.active_padGC, pcb_cap_round);
 			pcb_hid_set_line_width(pcb_draw_out.active_padGC, thickness);
@@ -1130,7 +1130,7 @@
 		pcb_render->draw_line(pcb_draw_out.fgGC, line->Point1.X, line->Point1.Y, line->Point2.X, line->Point2.Y);
 	}
 	else {
-		if(conf_core.editor.thin_draw) {
+		if(info->xform->thin_draw) {
 			pcb_hid_set_line_width(pcb_draw_out.fgGC, 0);
 			pcb_render->draw_line(pcb_draw_out.fgGC, line->Point1.X, line->Point1.Y, line->Point2.X, line->Point2.Y);
 		}
Index: trunk/src/obj_poly.c
===================================================================
--- trunk/src/obj_poly.c	(revision 29416)
+++ trunk/src/obj_poly.c	(revision 29417)
@@ -1222,7 +1222,7 @@
 		polygon = trpoly;
 	}
 
-	if ((conf_core.editor.thin_draw || conf_core.editor.thin_draw_poly || info->xform->wireframe))
+	if ((info->xform->thin_draw || info->xform->thin_draw_poly || info->xform->wireframe))
 	{
 		pcb_dhlp_thindraw_pcb_polygon(pcb_draw_out.fgGC, polygon, info->drawn_area);
 	}
Index: trunk/src/obj_pstk.c
===================================================================
--- trunk/src/obj_pstk.c	(revision 29416)
+++ trunk/src/obj_pstk.c	(revision 29417)
@@ -566,7 +566,7 @@
 			set_ps_color(ps, info->objcb.pstk.is_current, info->objcb.pstk.shape_mask, info->objcb.pstk.layer1);
 		else
 			set_ps_color(ps, info->objcb.pstk.is_current, grp->ltype, info->objcb.pstk.layer1);
-		if (conf_core.editor.thin_draw || info->xform->wireframe) {
+		if (info->xform->thin_draw || info->xform->wireframe) {
 			pcb_hid_set_line_width(pcb_draw_out.fgGC, 0);
 			pcb_pstk_draw_shape_thin(info, pcb_draw_out.fgGC, ps, shape);
 		}
@@ -725,7 +725,7 @@
 	/* actual slot */
 	shape = pcb_pstk_shape(ps, PCB_LYT_MECH, PCB_LYC_AUTO);
 	if (shape != NULL) {
-		if (conf_core.editor.thin_draw || info->xform->wireframe) {
+		if (info->xform->thin_draw || info->xform->wireframe) {
 			pcb_hid_set_line_width(pcb_draw_out.drillGC, 0);
 			pcb_pstk_draw_shape_thin(info, pcb_draw_out.drillGC, ps, shape);
 		}
Index: trunk/src/obj_rat.c
===================================================================
--- trunk/src/obj_rat.c	(revision 29416)
+++ trunk/src/obj_rat.c	(revision 29417)
@@ -462,7 +462,7 @@
 	if (PCB_FLAG_TEST(PCB_FLAG_VIA, rat)) {
 		int w = rat->Thickness;
 
-		if (conf_core.editor.thin_draw || info->xform->wireframe)
+		if (info->xform->thin_draw || info->xform->wireframe)
 			pcb_hid_set_line_width(pcb_draw_out.fgGC, 0);
 		else
 			pcb_hid_set_line_width(pcb_draw_out.fgGC, w);
Index: trunk/src/obj_text.c
===================================================================
--- trunk/src/obj_text.c	(revision 29416)
+++ trunk/src/obj_text.c	(revision 29417)
@@ -1190,7 +1190,7 @@
 			}
 
 			/* draw the polygons */
-			poly_thin = conf_core.editor.thin_draw || info->xform->wireframe;
+			poly_thin = info->xform->thin_draw || info->xform->wireframe;
 			for(p = polylist_first(&font->Symbol[*string].polys); p != NULL; p = polylist_next(p))
 				draw_text_poly(info, p, mx, x, xordraw, poly_thin, xordx, xordy, cb, cb_ctx);
 
@@ -1212,7 +1212,7 @@
 			py[3] = pcb_round(pcb_xform_y(mx, font->DefaultSymbol.X1 + x, font->DefaultSymbol.Y2));
 
 			/* draw move on to next cursor position */
-			if ((cb == NULL) && (xordraw || (conf_core.editor.thin_draw || info->xform->wireframe))) {
+			if ((cb == NULL) && (xordraw || (info->xform->thin_draw || info->xform->wireframe))) {
 				if (xordraw) {
 					pcb_render->draw_line(pcb_crosshair.GC, px[0] + xordx, py[0] + xordy, px[1] + xordx, py[1] + xordy);
 					pcb_render->draw_line(pcb_crosshair.GC, px[1] + xordx, py[1] + xordy, px[2] + xordx, py[2] + xordy);