TranslucentStatusBar

AndroidManifest.xml

<activity
            android:name=".ui.settings.help.AboutActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.TranslucentStatusBar"/>

styles.xml

<style name="AppTheme.TranslucentStatusBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
        <item name="android:windowTranslucentStatus">true</item>
        <item name="elevation">0dp</item>
    </style>

your_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    android:background="@drawable/splash_background_image"
    android:theme="@style/AppTheme.AppBarOverlay">

    <TextView
        android:id="@+id/app_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="20sp"
        android:textColor="#FFFFFF"
        android:layout_marginBottom="27dp"
        android:text="@string/app_name"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintBottom_toTopOf="@id/app_version"/>

    <TextView
        android:id="@+id/app_version"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="11dp"
        android:text="@string/version"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintBottom_toTopOf="@id/app_logo"/>

    <ImageView
        android:id="@+id/app_logo"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:src="@drawable/logo"
        app:layout_constraintVertical_chainStyle="packed"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        android:contentDescription="@string/app_name" />

    <TextView
        android:id="@+id/copyright"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/copyright"
        android:layout_marginTop="18dp"
        android:textAlignment="center"
        app:layout_constraintVertical_chainStyle="packed"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@id/app_logo"/>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="40dp"
        android:text="@string/develop"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"/>

</android.support.constraint.ConstraintLayout>