diff --git a/gtk2_ardour/editor_canvas.cc b/gtk2_ardour/editor_canvas.cc
index 7449dd6086..df9cdcf824 100644
--- a/gtk2_ardour/editor_canvas.cc
+++ b/gtk2_ardour/editor_canvas.cc
@@ -107,35 +107,35 @@ Editor::initialize_canvas ()
 	CANVAS_DEBUG_NAME (_region_motion_group, "Canvas Region Motion");
 
 	meter_bar_group = new ArdourCanvas::Group (_time_bars_canvas->root ());
-	meter_bar = new ArdourCanvas::Rectangle (meter_bar_group, ArdourCanvas::Rect (0.0, 0.0, ArdourCanvas::COORD_MAX, timebar_height - 1));
+	meter_bar = new ArdourCanvas::Rectangle (meter_bar_group, ArdourCanvas::Rect (0.0, 0.0, ArdourCanvas::COORD_MAX, timebar_height));
 	CANVAS_DEBUG_NAME (meter_bar, "meter Bar");
-	meter_bar->set_outline_what (0x8);
+	meter_bar->set_outline_what (ArdourCanvas::Rectangle::BOTTOM);
 
 	tempo_bar_group = new ArdourCanvas::Group (_time_bars_canvas->root ());
-	tempo_bar = new ArdourCanvas::Rectangle (tempo_bar_group, ArdourCanvas::Rect (0.0, 0.0, ArdourCanvas::COORD_MAX, timebar_height - 1));
+	tempo_bar = new ArdourCanvas::Rectangle (tempo_bar_group, ArdourCanvas::Rect (0.0, 0.0, ArdourCanvas::COORD_MAX, timebar_height));
 	CANVAS_DEBUG_NAME (tempo_bar, "Tempo  Bar");
-	tempo_bar->set_outline_what (0x8);
+	tempo_bar->set_outline_what (ArdourCanvas::Rectangle::BOTTOM);
 
 	range_marker_bar_group = new ArdourCanvas::Group (_time_bars_canvas->root ());
-	range_marker_bar = new ArdourCanvas::Rectangle (range_marker_bar_group, ArdourCanvas::Rect (0.0, 0.0, ArdourCanvas::COORD_MAX, timebar_height - 1));
+	range_marker_bar = new ArdourCanvas::Rectangle (range_marker_bar_group, ArdourCanvas::Rect (0.0, 0.0, ArdourCanvas::COORD_MAX, timebar_height));
 	CANVAS_DEBUG_NAME (range_marker_bar, "Range Marker Bar");
-	range_marker_bar->set_outline_what (0x8);
+	range_marker_bar->set_outline_what (ArdourCanvas::Rectangle::BOTTOM);
 
 	transport_marker_bar_group = new ArdourCanvas::Group (_time_bars_canvas->root ());
-	transport_marker_bar = new ArdourCanvas::Rectangle (transport_marker_bar_group, ArdourCanvas::Rect (0.0, 0.0, ArdourCanvas::COORD_MAX, timebar_height - 1));
+	transport_marker_bar = new ArdourCanvas::Rectangle (transport_marker_bar_group, ArdourCanvas::Rect (0.0, 0.0, ArdourCanvas::COORD_MAX, timebar_height));
 	CANVAS_DEBUG_NAME (transport_marker_bar, "transport Marker Bar");
-	transport_marker_bar->set_outline_what (0x8);
+	transport_marker_bar->set_outline_what (ArdourCanvas::Rectangle::BOTTOM);
 
 	marker_bar_group = new ArdourCanvas::Group (_time_bars_canvas->root ());
-	marker_bar = new ArdourCanvas::Rectangle (marker_bar_group, ArdourCanvas::Rect (0.0, 0.0, ArdourCanvas::COORD_MAX, timebar_height - 1));
+	marker_bar = new ArdourCanvas::Rectangle (marker_bar_group, ArdourCanvas::Rect (0.0, 0.0, ArdourCanvas::COORD_MAX, timebar_height));
 	CANVAS_DEBUG_NAME (marker_bar, "Marker Bar");
-	marker_bar->set_outline_what (0x8);
+	marker_bar->set_outline_what (ArdourCanvas::Rectangle::BOTTOM);
 
 	cd_marker_bar_group = new ArdourCanvas::Group (_time_bars_canvas->root ());
-	cd_marker_bar = new ArdourCanvas::Rectangle (cd_marker_bar_group, ArdourCanvas::Rect (0.0, 0.0, ArdourCanvas::COORD_MAX, timebar_height - 1));
+	cd_marker_bar = new ArdourCanvas::Rectangle (cd_marker_bar_group, ArdourCanvas::Rect (0.0, 0.0, ArdourCanvas::COORD_MAX, timebar_height));
 	CANVAS_DEBUG_NAME (cd_marker_bar, "CD Marker Bar");
- 	cd_marker_bar->set_outline_what (0x8);
-
+ 	cd_marker_bar->set_outline_what (ArdourCanvas::Rectangle::BOTTOM);
+	
 	_time_markers_group = new ArdourCanvas::Group (_time_bars_canvas->root());
 
 	meter_group = new ArdourCanvas::Group (_time_markers_group, ArdourCanvas::Duple (0.0, timebar_height * 5.0));