overlay/frameworks/base/packages/SystemUI/res/values/config.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
/*
** Copyright 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.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
-->

<!-- These resources are around just to allow their values to be customized
     for different hardware and product builds. -->
<resources>

    <!-- Control whether status bar should distinguish HSPA data icon from UMTS
    data icon on devices -->
    <bool name="config_hspa_data_distinguishable">true</bool>

    <!-- Vibration duration for MultiWaveView used in SearchPanelView -->
    <integer translatable="false" name="config_search_panel_view_vibration_duration">10</integer>

    <!-- Should "4G" be shown instead of "LTE" when the network is NETWORK_TYPE_LTE? -->
    <bool name="config_show4GForLTE">false</bool>

    <!-- Doze: does this device support STATE_DOZE and STATE_DOZE_SUSPEND?  -->
    <bool name="doze_display_state_supported">true</bool>

    <!-- Doze: should the pickup sensor be used as a pulse signal? -->
    <bool name="doze_pulse_on_pick_up">true</bool>

    <!-- Doze: can we assume the pickup sensor includes a proximity check? -->
    <bool name="doze_pickup_performs_proximity_check">true</bool>

    <!-- Type of the double tap sensor. Empty if double tap is not supported. -->
    <string name="doze_double_tap_sensor_type" translatable="false">com.google.sensor.double_touch</string>

    <!-- The default tiles to display in QuickSettings -->
    <string name="quick_settings_tiles_default" translatable="false">
        wifi,cell,battery,dnd,flashlight,rotation,bt,airplane,custom(com.google.android.gms/.nearby.discovery.ui.DiscoveryTileService)
    </string>
</resources>