lokinet/android/res/layout/activity_perms_explanation.xml

<LinearLayout android:id="@+id/layout_prompt"
    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"
    android:paddingBottom="@dimen/vertical_page_margin"
    android:paddingLeft="@dimen/horizontal_page_margin"
    android:paddingRight="@dimen/horizontal_page_margin"
    android:paddingTop="@dimen/vertical_page_margin"
    tools:context=".PermsAskerActivity">

    <TextView
        android:id="@+id/textview_explanation"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="@dimen/horizontal_page_margin"
        android:text="VPN permissions are required for lokinet usage."
        />

    <Button
        android:id="@+id/button_ok"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="OK"
        />
</LinearLayout>