launcher/app/src/main/res/layout/activity_settings.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:custom="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".SettingsActivity">

    <com.google.android.material.appbar.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/colorPrimaryDark"
        android:theme="@style/AppTheme.AppBarOverlay">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal">

            <TextView
                android:id="@+id/title"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:gravity="center"
                android:minHeight="?actionBarSize"
                android:padding="@dimen/appbar_padding"
                android:text="@string/settings_title"
                android:textAppearance="@style/TextAppearance.Widget.AppCompat.Toolbar.Title"
                android:textSize="30sp" />

            <com.finnmglas.launcher.FontAwesome
                android:layout_width="match_parent"
                android:id="@+id/fa"
                android:layout_height="match_parent"
                android:gravity="center|right"
                android:includeFontPadding="true"
                android:onClick="backHome"
                android:paddingLeft="16sp"
                android:paddingRight="16sp"
                android:text="@string/fa_close_window"
                android:textColor="#ffffff"
                android:textSize="22sp"
                custom:type="solid"/>
        </LinearLayout>

        <com.google.android.material.tabs.TabLayout
            android:id="@+id/tabs"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="?attr/colorPrimaryDark" />
    </com.google.android.material.appbar.AppBarLayout>

    <androidx.viewpager.widget.ViewPager
        android:id="@+id/view_pager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>