diff --git a/source/Ox.UI/css/theme.css b/source/Ox.UI/css/theme.css
index 575e8cd4..76889cc3 100644
--- a/source/Ox.UI/css/theme.css
+++ b/source/Ox.UI/css/theme.css
@@ -988,6 +988,10 @@ Video
     background-color: $videoAnnotationSelectedBackground;
 }
 
+.$themeClass .OxLargeVideoTimeline .OxOverlay {
+    background-color: $mediaBackground;
+}
+
 .$themeClass .OxSmallVideoTimeline .OxMarkerPlay {
     border-color: $videoTimelineMarkerShadow;
 }