diff --git a/source/Ox.UI/css/Ox.UI.css b/source/Ox.UI/css/Ox.UI.css
index f850d32a..8edeb405 100644
--- a/source/Ox.UI/css/Ox.UI.css
+++ b/source/Ox.UI/css/Ox.UI.css
@@ -2270,7 +2270,7 @@ Video
     -webkit-box-shadow: 0 0 2px rgba(0, 0, 0, 0.5);
 }
 .OxLargeVideoTimeline .OxSubtitle.OxHighlight {
-    border-color: rgba(255, 255, 0, 1);
+    border-color: rgb(255, 255, 0);
 }
 .OxTimelineSmall {
     position: absolute;
diff --git a/source/Ox.UI/css/theme.css b/source/Ox.UI/css/theme.css
index e6d5144c..801a86bc 100644
--- a/source/Ox.UI/css/theme.css
+++ b/source/Ox.UI/css/theme.css
@@ -1089,6 +1089,13 @@ Video
     border-color: $bodyColor;
 }
 
+.$themeClass .OxLargeVideoTimeline .OxSubtitle .OxHighlight,
+.$themeClass .OxVideoPlayer .OxSubtitle .OxHighlight {
+    background-image: none;
+    color: rgb(255, 255, 0);
+}
+
+
 .$themeClass .OxAnnotationFolder .OxArrayEditable .OxSeparator {
     color: $videoAnnotationSeparatorColor;
 }