diff --git a/gtk2_ardour/ardour3_ui_default.conf b/gtk2_ardour/ardour3_ui_default.conf
index 371ea9a731..61dd1cbd98 100644
--- a/gtk2_ardour/ardour3_ui_default.conf
+++ b/gtk2_ardour/ardour3_ui_default.conf
@@ -156,10 +156,9 @@
     <Option name="video timeline bar" value="303030ff"/>
     <Option name="region base" value="99a7b5a0"/>
     <Option name="region area covered by another region" value="505050b0"/>
-    <Option name="waveform fill" value="ffffffff"/>
     <Option name="clipped waveform" value="ff0000e5"/>
-    <Option name="waveform fill" value="bde7b9dc"/>
-    <Option name="zero line" value="b5b5b525"/>
+    <Option name="waveform fill" value="ffffffff"/>
+    <Option name="zero line" value="7f7f7f58"/>
     <Option name="zoom rect" value="c6d1b26d"/>
     <Option name="monitor knob" value="329edfff"/>
     <Option name="button border" value="000000f0"/>