diff --git a/gtk2_ardour/dark.colors b/gtk2_ardour/dark.colors
index b96702c7c3..35f5d24a85 100644
--- a/gtk2_ardour/dark.colors
+++ b/gtk2_ardour/dark.colors
@@ -465,8 +465,8 @@
     <ColorAlias name="trim handle" alias="color 18"/>
     <ColorAlias name="trim handle locked" alias="color 86"/>
     <ColorAlias name="trim knob" alias="color 60"/>
-    <ColorAlias name="trim knob: arc end" alias="color 82"/>
-    <ColorAlias name="trim knob: arc start" alias="color 16"/>
+    <ColorAlias name="trim knob: arc end" alias="color 16"/>
+    <ColorAlias name="trim knob: arc start" alias="color 82"/>
     <ColorAlias name="verbose canvas cursor" alias="color 32"/>
     <ColorAlias name="vestigial frame" alias="color 4"/>
     <ColorAlias name="video timeline bar" alias="color 46"/>