diff --git a/stepmania/Themes/default/metrics.ini b/stepmania/Themes/default/metrics.ini
index 763e8a2986..c9b544cc01 100644
--- a/stepmania/Themes/default/metrics.ini
+++ b/stepmania/Themes/default/metrics.ini
@@ -1752,11 +1752,11 @@ DisableRadar=0     // turn this to 1 if you are experiencing trouble with the gr
 
 [GrooveGraph]
 EdgeWidth=
-BeginnerColor=
-EasyColor=
-MediumColor=
-HardColor=
-ChallengeColor=
+BeginnerColor=0,0,0,0
+EasyColor=0,0,0,0
+MediumColor=0,0,0,0
+HardColor=0,0,0,0
+ChallengeColor=0,0,0,0
 ShowStream=
 ShowVoltage=
 ShowAir=