Magisk/app/src/main/res/layout/toolbar.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar android:id="@+id/toolbar"
                                   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="?attr/actionBarSize"
                                   android:background="?attr/colorPrimary"

                                   />