diff --git a/app/ui/legacy/src/main/res/layout/message_view_header.xml b/app/ui/legacy/src/main/res/layout/message_view_header.xml
index 4b64ebed4..1adfbc0de 100644
--- a/app/ui/legacy/src/main/res/layout/message_view_header.xml
+++ b/app/ui/legacy/src/main/res/layout/message_view_header.xml
@@ -68,7 +68,6 @@
         android:id="@+id/participants_container"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:background="?attr/messageHeaderBackground"
         android:clickable="true"
         android:focusable="true"
         android:foreground="?attr/selectableItemBackground"
diff --git a/app/ui/legacy/src/main/res/values/attrs.xml b/app/ui/legacy/src/main/res/values/attrs.xml
index 6e3abc0e2..254b45d0e 100644
--- a/app/ui/legacy/src/main/res/values/attrs.xml
+++ b/app/ui/legacy/src/main/res/values/attrs.xml
@@ -2,7 +2,6 @@
 <resources>
 
     <declare-styleable name="K9Styles">
-        <attr name="messageHeaderBackground" format="reference|color" />
         <attr name="extraMessageHeaderBackground" format="reference|color" />
         <attr name="iconUnifiedInbox" format="reference" />
         <attr name="iconFolder" format="reference" />
diff --git a/app/ui/legacy/src/main/res/values/themes.xml b/app/ui/legacy/src/main/res/values/themes.xml
index bc1f65ab4..8872032a3 100644
--- a/app/ui/legacy/src/main/res/values/themes.xml
+++ b/app/ui/legacy/src/main/res/values/themes.xml
@@ -62,7 +62,6 @@
 
         <item name="windowActionModeOverlay">true</item>
 
-        <item name="messageHeaderBackground">@color/material_gray_200</item>
         <item name="extraMessageHeaderBackground">@color/material_gray_100</item>
         <item name="preferenceTheme">@style/PreferenceThemeOverlay</item>
         <item name="textInputStyle">?attr/textInputOutlinedStyle</item>
@@ -265,7 +264,6 @@
 
         <item name="windowActionModeOverlay">true</item>
 
-        <item name="messageHeaderBackground">@color/material_gray_900</item>
         <item name="extraMessageHeaderBackground">@color/material_gray_900</item>
 
         <item name="preferenceTheme">@style/PreferenceThemeOverlay</item>