diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index b345fd4..3a6366d 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -4,7 +4,8 @@
     <color name="colorPrimaryDark">#303F9F</color>
     <color name="colorAccent">#FF4081</color> <!--Alternatives: Red 700 #D32F2F-->
 
-    <color name="colorPrimaryInverse">@color/dark_gray</color> <!--TODO-->
-    <color name="colorPrimaryDarkInverse">@color/dark_gray</color> <!--TODO-->
-    <color name="colorAccentInverse">@color/colorAccent</color> <!--TODO-->
+    <!--TODO: Use color int instead? This resource is defined in aosp_datetimepicker_colors file. -->
+    <color name="colorPrimaryInverse">@color/dark_gray</color>
+    <color name="colorPrimaryDarkInverse">@android:color/black</color>
+    <color name="colorAccentInverse">#FF80AB</color>
 </resources>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 9c28d0f..ae6128f 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -2,7 +2,6 @@
 
     <!-- Base application theme. -->
     <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
-        <!-- Customize your theme here. -->
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
         <item name="colorAccent">@color/colorAccent</item>
@@ -11,6 +10,7 @@
         <item name="alertDialogTheme">@style/AppCompatAlertDialogStyle</item>
         <item name="bottomSheetDialogTheme">@style/BottomSheetDialogTheme</item>
         <item name="themedIconTint">@color/icon_color</item>
+        <item name="android:textColorHint">@color/text_color_disabled_light</item>
     </style>
 
     <style name="AppTheme.Dark" parent="Theme.AppCompat.NoActionBar">
@@ -23,6 +23,7 @@
         <!--TODO: Dark theme-->
         <item name="bottomSheetDialogTheme">@style/BottomSheetDialogTheme</item>
         <item name="themedIconTint">@color/icon_color_dark</item>
+        <item name="android:textColorHint">@color/text_color_disabled_dark</item>
     </style>
 
     <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar"/>