diff --git a/gtk2_ardour/audio_streamview.cc b/gtk2_ardour/audio_streamview.cc
index e879d4c13e..551dcdac19 100644
--- a/gtk2_ardour/audio_streamview.cc
+++ b/gtk2_ardour/audio_streamview.cc
@@ -516,7 +516,7 @@ AudioStreamView::color_handler ()
 {
 	//case cAudioTrackBase:
 	if (_trackview.is_track()) {
-		canvas_rect->set_fill_color (ARDOUR_UI::config()->color ("audio track base"));
+		canvas_rect->set_fill_color (ARDOUR_UI::config()->color_mod ("audio track base", "audio track base"));
 	}
 
 	//case cAudioBusBase:
diff --git a/gtk2_ardour/automation_time_axis.cc b/gtk2_ardour/automation_time_axis.cc
index cd57387ac4..d4c62a2739 100644
--- a/gtk2_ardour/automation_time_axis.cc
+++ b/gtk2_ardour/automation_time_axis.cc
@@ -124,7 +124,7 @@ AutomationTimeAxisView::AutomationTimeAxisView (
 	CANVAS_DEBUG_NAME (_base_rect, string_compose ("base rect for %1", _name));
 	_base_rect->set_x1 (ArdourCanvas::COORD_MAX);
 	_base_rect->set_outline (false);
-	_base_rect->set_fill_color (ARDOUR_UI::config()->color ("automation track fill"));
+	_base_rect->set_fill_color (ARDOUR_UI::config()->color_mod ("automation track fill", "automation track fill"));
 	_base_rect->set_data ("trackview", this);
 	_base_rect->Event.connect (sigc::bind (sigc::mem_fun (_editor, &PublicEditor::canvas_automation_track_event), _base_rect, this));
 	if (!a) {
diff --git a/gtk2_ardour/dark.colors b/gtk2_ardour/dark.colors
index 3f7e5ce42e..cd6a25d34e 100644
--- a/gtk2_ardour/dark.colors
+++ b/gtk2_ardour/dark.colors
@@ -61,7 +61,7 @@
     <Color name="color 47" value="0x00880eff"/>
     <Color name="color 48" value="0x00aa11ff"/>
     <Color name="color 49" value="0x00660aff"/>
-    <Color name="color 5" value="0x9dadc468"/>
+    <Color name="color 5" value="0x9dadc4ff"/>
     <Color name="color 50" value="0xeeeeecff"/>
     <Color name="color 51" value="0x383d3766"/>
     <Color name="color 52" value="0xe8faa1ff"/>
@@ -493,10 +493,10 @@
     <Modifier name="midi note velocity text" modifier="= alpha:0.4666"/>
     <Modifier name="midi sysex fill" modifier="= alpha:0.4666"/>
     <Modifier name="verbose canvas cursor" modifier="= alpha:0.4666"/>
-
     <Modifier name="measure line beat" modifier="= alpha:0.4627"/>
     <Modifier name="piano roll white" modifier="= alpha:0.4627"/>
-    <Modifier name="modifier 5" modifier="= alpha:0.4078"/>
+    <Modifier name="audio track base" modifier="= alpha:0.4078"/>
+    <Modifier name="automation track fill" modifier="= alpha:0.4078"/>
     <Modifier name="modifier 51" modifier="= alpha:0.4"/>
     <Modifier name="modifier 60" modifier="= alpha:0.6274"/>
     <Modifier name="modifier 61" modifier="= alpha:0.7529"/>