habitica-android/Habitica/res/layout/fragment_recyclerview.xml

<?xml version="1.0" encoding="utf-8"?>

<android.support.design.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/coordinatorLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recyclerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scrollbarSize="3dp"
        android:scrollbarThumbVertical="@color/md_grey_500"
        android:scrollbars="vertical" />

</android.support.design.widget.CoordinatorLayout>