appbar.xml

<androidx.appcompat.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:background="@color/my_primary"
    android:id="@+id/mainToolBar"
    android:theme="@style/ThemeOverlay.AppCompat.Dark"
    app:title="RecordBook"
    app:titleMarginStart="90dp"
    app:logo="@drawable/ic_baseline_arrow">

</androidx.appcompat.widget.Toolbar>