diff --git a/core/res/res/drawable/watch_switch_track_material.xml b/core/res/res/color/watch_switch_track_color_material.xml
similarity index 72%
rename from core/res/res/drawable/watch_switch_track_material.xml
rename to core/res/res/color/watch_switch_track_color_material.xml
index 79e92a3310710..c7dc5d34204a0 100644
--- a/core/res/res/drawable/watch_switch_track_material.xml
+++ b/core/res/res/color/watch_switch_track_color_material.xml
@@ -1,9 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- Copyright (C) 2016 The Android Open Source Project
+
      Licensed under the Apache License, Version 2.0 (the "License");
      you may not use this file except in compliance with the License.
      You may obtain a copy of the License at
+
           http://www.apache.org/licenses/LICENSE-2.0
+
      Unless required by applicable law or agreed to in writing, software
      distributed under the License is distributed on an "AS IS" BASIS,
      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -12,10 +15,8 @@
 -->
 
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:state_enabled="false">
-        <bitmap android:alpha="0.1" android:src="@drawable/watch_switch_track_mtrl_alpha" />
-    </item>
-    <item>
-        <bitmap android:alpha="0.2" android:src="@drawable/watch_switch_track_mtrl_alpha" />
-    </item>
-</selector>
+    <item android:state_enabled="false"
+          android:alpha="?attr/disabledAlpha"
+          android:color="?android:colorPrimary" />
+    <item android:color="?android:colorPrimary" />
+</selector>
\ No newline at end of file
diff --git a/core/res/res/drawable-hdpi/watch_switch_track_mtrl_alpha.png b/core/res/res/drawable-hdpi/watch_switch_track_mtrl.png
similarity index 100%
rename from core/res/res/drawable-hdpi/watch_switch_track_mtrl_alpha.png
rename to core/res/res/drawable-hdpi/watch_switch_track_mtrl.png
diff --git a/core/res/res/drawable-xhdpi/watch_switch_track_mtrl_alpha.png b/core/res/res/drawable-xhdpi/watch_switch_track_mtrl.png
similarity index 100%
rename from core/res/res/drawable-xhdpi/watch_switch_track_mtrl_alpha.png
rename to core/res/res/drawable-xhdpi/watch_switch_track_mtrl.png
diff --git a/core/res/res/drawable-xxhdpi/watch_switch_track_mtrl_alpha.png b/core/res/res/drawable-xxhdpi/watch_switch_track_mtrl.png
similarity index 100%
rename from core/res/res/drawable-xxhdpi/watch_switch_track_mtrl_alpha.png
rename to core/res/res/drawable-xxhdpi/watch_switch_track_mtrl.png
diff --git a/core/res/res/layout-watch/preference_widget_switch.xml b/core/res/res/layout-watch/preference_widget_switch.xml
index 5881cf0c4d1ea..a1a845abfe3ab 100644
--- a/core/res/res/layout-watch/preference_widget_switch.xml
+++ b/core/res/res/layout-watch/preference_widget_switch.xml
@@ -24,7 +24,8 @@
     android:thumb="@drawable/watch_switch_thumb_material_anim"
     android:thumbTint="@color/watch_switch_thumb_color_material"
     android:thumbTintMode="multiply"
-    android:track="@drawable/watch_switch_track_material"
+    android:track="@drawable/watch_switch_track_mtrl"
+    android:trackTint="@color/watch_switch_track_color_material"
     android:focusable="false"
     android:clickable="false"
     android:background="@null" />
diff --git a/core/res/res/values-watch/colors_material.xml b/core/res/res/values-watch/colors_material.xml
index 18bfd4db5ae04..92f77622a2a28 100644
--- a/core/res/res/values-watch/colors_material.xml
+++ b/core/res/res/values-watch/colors_material.xml
@@ -22,7 +22,7 @@
     <color name="accent_material_dark">#ff5e97f6</color>
     <color name="accent_material_50">#ffd0def7</color>
 
-    <color name="primary_material_dark">#4D4D4D</color>
+    <color name="primary_material_dark">#33ffffff</color>
 
     <color name="button_material_dark">#ff919699</color>
 </resources>