res/layout-night/digital_widget_preview.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
     SPDX-FileCopyrightText: 2023 The LineageOS Project
     SPDX-License-Identifier: Apache-2.0
-->

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@android:id/background"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="top|center_horizontal"
    android:orientation="vertical"
    android:background="@drawable/widget_background"
    android:backgroundTint="?appWidgetBackgroundTint"
    android:padding="@dimen/widget_padding"
    android:paddingTop="@dimen/widget_padding"
    android:paddingBottom="@dimen/widget_padding"
    android:theme="@style/Theme.DeskClock.DigitalWidgetTransparentDarkBg">

    <TextClock
        android:id="@+id/clock"
        android:textAppearance="?appWidgetTextAppearancePrimary"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal|top"
        android:ellipsize="none"
        android:format12Hour="@string/lock_screen_12_hour_format"
        android:format24Hour="@string/lock_screen_24_hour_format"
        android:includeFontPadding="false"
        android:singleLine="true"
        android:textAlignment="center"
        android:textSize="48sp"
        tools:text="0123"
        tools:textColor="@android:color/white"/>

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal|top"
        android:layout_marginTop="-10dp">

        <TextClock
            android:id="@+id/date"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:ellipsize="none"
            android:includeFontPadding="false"
            android:singleLine="true"
            android:textAppearance="?appWidgetTextAppearancePrimaryLabel"
            android:format12Hour="@string/abbrev_wday_month_day_no_year_preview"
            android:format24Hour="@string/abbrev_wday_month_day_no_year_preview"
            tools:text="01. Jan, 2023"
            tools:textColor="@android:color/white"
            tools:textSize="@dimen/label_font_size"/>

    </LinearLayout>
</LinearLayout>