res/values/overlayable.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2019 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.
-->

<!-- The collection of resources for theming the appearance of a device -->
<resources xmlns:android="http://schemas.android.com/apk/res/android">

    <overlayable name="DocumentsUICustomization">

        <!-- START VENDOR CUSTOMIZATION -->
        <policy type="product|system|vendor">
            <!-- START THEME / STYLE -->
            <item type="style" name="DocumentsTheme"/>
            <!-- END THEME / STYLE -->

            <!-- START COLOR -->
            <item type="color" name="primary"/>
            <!-- END COLOR -->

            <!-- START DIMEN -->
            <item type="dimen" name="grid_item_radius"/>
            <item type="dimen" name="search_chip_radius"/>
            <!-- END DIMEN -->

            <!-- START DRAWABLE -->
            <item type="drawable" name="ic_eject"/>
            <item type="drawable" name="ic_root_download"/>
            <item type="drawable" name="ic_sd_storage"/>
            <item type="drawable" name="root_list_selector"/>
            <!-- END DRAWABLE -->

            <!-- START BOOLEAN CONFIG -->
            <item type="bool" name="config_button_all_caps"/>
            <item type="bool" name="config_default_show_device_root"/>
            <item type="bool" name="feature_default_root_in_browse"/>
            <item type="bool" name="handle_view_downloads_intent"/>
            <item type="bool" name="is_launcher_enabled"/>
            <item type="bool" name="show_search_bar"/>
            <!-- END BOOLEAN CONFIG -->

            <!-- START STRING CONFIG -->
            <item type="string" name="config_fontFamily"/>
            <item type="string" name="config_fontFamilyMedium"/>
            <item type="string" name="default_root_uri"/>
            <item type="string" name="preferred_root_package"/>
            <item type="string" name="trusted_quick_viewer_package"/>
            <!-- END STRING CONFIG -->

        </policy>
        <!-- END VENDOR CUSTOMIZATION -->

    </overlayable>

</resources>