diff --git a/gtk2_ardour/themes/blueberry_milk-ardour.colors b/gtk2_ardour/themes/blueberry_milk-ardour.colors
index b394e6c536..ae429b10f7 100644
--- a/gtk2_ardour/themes/blueberry_milk-ardour.colors
+++ b/gtk2_ardour/themes/blueberry_milk-ardour.colors
@@ -369,6 +369,7 @@
     <ColorAlias name="rude solo: led active" alias="alert:red"/>
     <ColorAlias name="ruler base" alias="theme:bg2"/>
     <ColorAlias name="ruler text" alias="neutral:background2"/>
+    <ColorAlias name="scroomer" alias="alert:orange"/>
     <ColorAlias name="secondary clock: background" alias="theme:bg2"/>
     <ColorAlias name="secondary clock: cursor" alias="theme:contrasting alt"/>
     <ColorAlias name="secondary clock: edited text" alias="theme:contrasting alt"/>
@@ -507,6 +508,7 @@
     <Modifier name="piano roll white" modifier="= alpha:0.2"/>
     <Modifier name="recording rect" modifier="= alpha:0.25"/>
     <Modifier name="region alpha" modifier="= alpha:0.75"/>
+    <Modifier name="scroomer alpha" modifier="= alpha:0.15"/>
     <Modifier name="selected midi note" modifier="= alpha:0.7529"/>
     <Modifier name="selection rect" modifier="= alpha:0.4666"/>
     <Modifier name="silence" modifier="= alpha:0.4784"/>
diff --git a/gtk2_ardour/themes/caineville-ardour.colors b/gtk2_ardour/themes/caineville-ardour.colors
index ffd7d39575..3d5421030d 100644
--- a/gtk2_ardour/themes/caineville-ardour.colors
+++ b/gtk2_ardour/themes/caineville-ardour.colors
@@ -370,6 +370,7 @@
     <ColorAlias name="rude solo: led active" alias="alert:red"/>
     <ColorAlias name="ruler base" alias="theme:bg2"/>
     <ColorAlias name="ruler text" alias="neutral:midground"/>
+    <ColorAlias name="scroomer" alias="alert:orange"/>
     <ColorAlias name="secondary clock: background" alias="theme:bg2"/>
     <ColorAlias name="secondary clock: cursor" alias="theme:contrasting alt"/>
     <ColorAlias name="secondary clock: edited text" alias="theme:contrasting alt"/>
@@ -508,6 +509,7 @@
     <Modifier name="piano roll white" modifier="= alpha:0.2"/>
     <Modifier name="recording rect" modifier="= alpha:0.25"/>
     <Modifier name="region alpha" modifier="= alpha:0.75"/>
+    <Modifier name="scroomer alpha" modifier="= alpha:0.15"/>
     <Modifier name="selected midi note" modifier="= alpha:0.7529"/>
     <Modifier name="selection rect" modifier="= alpha:0.4666"/>
     <Modifier name="silence" modifier="= alpha:0.4784"/>
diff --git a/gtk2_ardour/themes/clear_gray-ardour.colors b/gtk2_ardour/themes/clear_gray-ardour.colors
index f29c95f195..8675a13c92 100644
--- a/gtk2_ardour/themes/clear_gray-ardour.colors
+++ b/gtk2_ardour/themes/clear_gray-ardour.colors
@@ -370,6 +370,7 @@
     <ColorAlias name="rude solo: led active" alias="alert:red"/>
     <ColorAlias name="ruler base" alias="theme:bg2"/>
     <ColorAlias name="ruler text" alias="neutral:midground"/>
+    <ColorAlias name="scroomer" alias="alert:orange"/>
     <ColorAlias name="secondary clock: background" alias="theme:bg2"/>
     <ColorAlias name="secondary clock: cursor" alias="theme:contrasting alt"/>
     <ColorAlias name="secondary clock: edited text" alias="theme:contrasting alt"/>
@@ -508,6 +509,7 @@
     <Modifier name="piano roll white" modifier="= alpha:0.2"/>
     <Modifier name="recording rect" modifier="= alpha:0.25"/>
     <Modifier name="region alpha" modifier="= alpha:0.75"/>
+    <Modifier name="scroomer alpha" modifier="= alpha:0.15"/>
     <Modifier name="selected midi note" modifier="= alpha:0.7529"/>
     <Modifier name="selection rect" modifier="= alpha:0.4666"/>
     <Modifier name="silence" modifier="= alpha:0.4784"/>
diff --git a/gtk2_ardour/themes/cubasish-ardour.colors b/gtk2_ardour/themes/cubasish-ardour.colors
index ea0af1cb7a..1717bda1be 100644
--- a/gtk2_ardour/themes/cubasish-ardour.colors
+++ b/gtk2_ardour/themes/cubasish-ardour.colors
@@ -370,6 +370,7 @@
     <ColorAlias name="rude solo: led active" alias="alert:red"/>
     <ColorAlias name="ruler base" alias="theme:bg2"/>
     <ColorAlias name="ruler text" alias="neutral:midground"/>
+    <ColorAlias name="scroomer" alias="alert:orange"/>
     <ColorAlias name="secondary clock: background" alias="theme:bg2"/>
     <ColorAlias name="secondary clock: cursor" alias="theme:contrasting alt"/>
     <ColorAlias name="secondary clock: edited text" alias="theme:contrasting alt"/>
@@ -508,6 +509,7 @@
     <Modifier name="piano roll white" modifier="= alpha:0.2"/>
     <Modifier name="recording rect" modifier="= alpha:0.25"/>
     <Modifier name="region alpha" modifier="= alpha:0.75"/>
+    <Modifier name="scroomer alpha" modifier="= alpha:0.15"/>
     <Modifier name="selected midi note" modifier="= alpha:0.7529"/>
     <Modifier name="selection rect" modifier="= alpha:0.4666"/>
     <Modifier name="silence" modifier="= alpha:0.4784"/>
diff --git a/gtk2_ardour/themes/dark-ardour.colors b/gtk2_ardour/themes/dark-ardour.colors
index 9e35fb427a..5e7fdf730d 100644
--- a/gtk2_ardour/themes/dark-ardour.colors
+++ b/gtk2_ardour/themes/dark-ardour.colors
@@ -372,6 +372,7 @@
     <ColorAlias name="rude solo: led active" alias="alert:red"/>
     <ColorAlias name="ruler base" alias="theme:bg2"/>
     <ColorAlias name="ruler text" alias="neutral:midground"/>
+    <ColorAlias name="scroomer" alias="alert:orange"/>
     <ColorAlias name="secondary clock: background" alias="theme:bg2"/>
     <ColorAlias name="secondary clock: cursor" alias="theme:contrasting alt"/>
     <ColorAlias name="secondary clock: edited text" alias="theme:contrasting alt"/>
@@ -510,6 +511,7 @@
     <Modifier name="piano roll white" modifier="= alpha:0.2"/>
     <Modifier name="recording rect" modifier="= alpha:0.25"/>
     <Modifier name="region alpha" modifier="= alpha:0.75"/>
+    <Modifier name="scroomer alpha" modifier="= alpha:0.15"/>
     <Modifier name="selected midi note" modifier="= alpha:0.7529"/>
     <Modifier name="selection rect" modifier="= alpha:0.2"/>
     <Modifier name="silence" modifier="= alpha:0.4784"/>
diff --git a/gtk2_ardour/themes/diehard3-ardour.colors b/gtk2_ardour/themes/diehard3-ardour.colors
index 85ef9a182d..ac3d7919b4 100644
--- a/gtk2_ardour/themes/diehard3-ardour.colors
+++ b/gtk2_ardour/themes/diehard3-ardour.colors
@@ -372,6 +372,7 @@
     <ColorAlias name="rude solo: led active" alias="alert:red"/>
     <ColorAlias name="ruler base" alias="theme:bg2"/>
     <ColorAlias name="ruler text" alias="neutral:midground"/>
+    <ColorAlias name="scroomer" alias="alert:orange"/>
     <ColorAlias name="secondary clock: background" alias="theme:bg2"/>
     <ColorAlias name="secondary clock: cursor" alias="theme:contrasting alt"/>
     <ColorAlias name="secondary clock: edited text" alias="theme:contrasting alt"/>
@@ -510,6 +511,7 @@
     <Modifier name="recording rect" modifier="= alpha:0.25"/>
     <Modifier name="region alpha" modifier="= alpha:0.75"/>
     <Modifier name="region mark" modifier="= alpha:1"/>
+    <Modifier name="scroomer alpha" modifier="= alpha:0.15"/>
     <Modifier name="selected midi note" modifier="= alpha:0.77290000000000003"/>
     <Modifier name="selection rect" modifier="= alpha:0.46660000000000001"/>
     <Modifier name="silence" modifier="= alpha:0.47839999999999999"/>
diff --git a/gtk2_ardour/themes/recbox-ardour.colors b/gtk2_ardour/themes/recbox-ardour.colors
index 5b7473a5bb..985a2d1f25 100644
--- a/gtk2_ardour/themes/recbox-ardour.colors
+++ b/gtk2_ardour/themes/recbox-ardour.colors
@@ -371,6 +371,7 @@
     <ColorAlias name="rude solo: led active" alias="alert:red"/>
     <ColorAlias name="ruler base" alias="theme:bg2"/>
     <ColorAlias name="ruler text" alias="neutral:midground"/>
+    <ColorAlias name="scroomer" alias="alert:orange"/>
     <ColorAlias name="secondary clock: background" alias="theme:bg2"/>
     <ColorAlias name="secondary clock: cursor" alias="theme:contrasting alt"/>
     <ColorAlias name="secondary clock: edited text" alias="theme:contrasting alt"/>
@@ -509,6 +510,7 @@
     <Modifier name="piano roll white" modifier="= alpha:0.20000000000000001"/>
     <Modifier name="recording rect" modifier="= alpha:0.25"/>
     <Modifier name="region alpha" modifier="= alpha:0.75"/>
+    <Modifier name="scroomer alpha" modifier="= alpha:0.15"/>
     <Modifier name="selected midi note" modifier="= alpha:0.75290000000000001"/>
     <Modifier name="selection rect" modifier="= alpha:0.46660000000000001"/>
     <Modifier name="silence" modifier="= alpha:0.47839999999999999"/>
diff --git a/gtk2_ardour/themes/unastudia-ardour.colors b/gtk2_ardour/themes/unastudia-ardour.colors
index cbabe96b6a..b08bd53384 100644
--- a/gtk2_ardour/themes/unastudia-ardour.colors
+++ b/gtk2_ardour/themes/unastudia-ardour.colors
@@ -369,6 +369,7 @@
     <ColorAlias name="rude solo: led active" alias="alert:yellow"/>
     <ColorAlias name="ruler base" alias="theme:bg2"/>
     <ColorAlias name="ruler text" alias="neutral:midground"/>
+    <ColorAlias name="scroomer" alias="alert:orange"/>
     <ColorAlias name="secondary clock: background" alias="theme:bg2"/>
     <ColorAlias name="secondary clock: cursor" alias="theme:contrasting alt"/>
     <ColorAlias name="secondary clock: edited text" alias="theme:contrasting alt"/>
@@ -507,6 +508,7 @@
     <Modifier name="piano roll white" modifier="= alpha:0.2"/>
     <Modifier name="recording rect" modifier="= alpha:0.25"/>
     <Modifier name="region alpha" modifier="= alpha:0.75"/>
+    <Modifier name="scroomer alpha" modifier="= alpha:0.15"/>
     <Modifier name="selected midi note" modifier="= alpha:0.7529"/>
     <Modifier name="selection rect" modifier="= alpha:0.4666"/>
     <Modifier name="silence" modifier="= alpha:0.4784"/>
diff --git a/gtk2_ardour/themes/xcolors-ardour.colors b/gtk2_ardour/themes/xcolors-ardour.colors
index 490781ad22..4e2f67245e 100644
--- a/gtk2_ardour/themes/xcolors-ardour.colors
+++ b/gtk2_ardour/themes/xcolors-ardour.colors
@@ -370,6 +370,7 @@
     <ColorAlias name="rude solo: led active" alias="alert:red"/>
     <ColorAlias name="ruler base" alias="theme:bg2"/>
     <ColorAlias name="ruler text" alias="neutral:foreground2"/>
+    <ColorAlias name="scroomer" alias="alert:orange"/>
     <ColorAlias name="secondary clock: background" alias="theme:bg2"/>
     <ColorAlias name="secondary clock: cursor" alias="theme:contrasting alt"/>
     <ColorAlias name="secondary clock: edited text" alias="theme:contrasting alt"/>
@@ -508,6 +509,7 @@
     <Modifier name="piano roll white" modifier="= alpha:0.2"/>
     <Modifier name="recording rect" modifier="= alpha:0.25"/>
     <Modifier name="region alpha" modifier="= alpha:0.75"/>
+    <Modifier name="scroomer alpha" modifier="= alpha:0.15"/>
     <Modifier name="selected midi note" modifier="= alpha:1.0"/>
     <Modifier name="selection rect" modifier="= alpha:0.5"/>
     <Modifier name="silence" modifier="= alpha:0.5"/>