Meshtastic-Android/app/src/main/res/layout/map_view.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.mapbox.maps.MapView xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:mapbox="http://schemas.android.com/apk/res-auto"
        android:id="@+id/mapView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        mapbox:mapbox_cameraZoom="0" />

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

        <ProgressBar
            android:id="@+id/style_pack_download_progress"
            style="?android:attr/progressBarStyleHorizontal"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_weight="8"
            android:clickable="false"
            android:indeterminate="false"
            android:max="100"
            android:visibility="gone"
            android:progressTint="@color/colorPrimaryDark" />
    </LinearLayout>


    <com.google.android.material.floatingactionbutton.FloatingActionButton
        android:id="@+id/fab_style_toggle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="16dp"
        android:src="@drawable/baseline_layers_white_24dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        tools:backgroundTint="@color/buttonColor"
        android:contentDescription="@string/style_selection" />


</androidx.constraintlayout.widget.ConstraintLayout>