Fix dark theme on the activity picker

Before - https://i.imgur.com/xEs122z.png
After - https://i.imgur.com/RekmxnA.png / https://i.imgur.com/iUjc8Ts.png

Change-Id: Ibf879f0919ae6ba4aa54b6876999b9dd0dfbbd2f
Signed-off-by: Josh Fox (XlxFoXxlX) <joshfox87@gmail.com>
diff --git a/themes/darktheme/system/res/values/styles.xml b/themes/darktheme/system/res/values/styles.xml
index f83c6bc..b100d57 100644
--- a/themes/darktheme/system/res/values/styles.xml
+++ b/themes/darktheme/system/res/values/styles.xml
@@ -175,4 +175,20 @@
         <item name="android:textColorHint">#ff999999</item>
         <item name="android:textColorAlertDialogListItem">#ffffffff</item>
     </style>
+    <style name="Theme.DeviceDefault.Light.Dialog.Alert" parent="@*android:style/Theme.Material.Dialog.Alert">
+        <item name="android:windowTitleStyle">@*android:style/DialogWindowTitle.DeviceDefault</item>
+        <item name="android:windowAnimationStyle">@*android:style/Animation.DeviceDefault.Dialog</item>
+        <item name="android:buttonBarStyle">@*android:style/DeviceDefault.ButtonBar.AlertDialog</item>
+        <item name="android:borderlessButtonStyle">@*android:style/Widget.DeviceDefault.Button.Borderless.Small</item>
+        <item name="android:textColorPrimary">#ffffffff</item>
+        <item name="android:textColorSecondary">#fff5f5f5</item>
+        <item name="android:textColorTertiary">#b3f5f5f5</item>
+        <item name="android:textColorHint">#ff999999</item>
+        <item name="android:textColorAlertDialogListItem">#ffffffff</item>
+        <item name="android:colorPrimary">@*android:color/primary_dark_device_default_settings</item>
+        <item name="android:colorPrimaryDark">@*android:color/primary_device_default_settings</item>
+        <item name="android:colorSecondary">@*android:color/secondary_device_default_settings_light</item>
+        <item name="android:colorAccent">@*android:color/accent_device_default_light</item>
+        <item name="android:colorControlNormal">@*android:color/accent_device_default_dark</item>
+    </style>
 </resources>