<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.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"
                                   android:elevation = "@dimen/toolbar_elevation"
                                   android:theme = "@style/ThemeOverlay.AppCompat.Dark.ActionBar"
                                   app:popupTheme = "@style/ThemeOverlay.AppCompat.Light">
</android.support.v7.widget.Toolbar>