<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical"
  tools:context=".MainActivity">

  <include layout="@layout/discovery_toolbar" />

  <android.support.v7.widget.RecyclerView
    android:id="@+id/recycler_view"
    android:background="@drawable/dark_blue_gradient"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:scrollbars="vertical" />
</LinearLayout>

<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical"
  tools:context=".DiscoveryActivity">

  <include layout="@layout/discovery_toolbar" />

  <android.support.v7.widget.RecyclerView
    android:id="@+id/recycler_view"
    android:background="@drawable/dark_blue_gradient"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:scrollbars="vertical" />
</LinearLayout>

Fix up tools context metadata
Fix up tools context metadata
