session-android/res/layout/permissions_rationale_dialog.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">

    <LinearLayout
        android:id="@+id/header_container"
        android:background="@color/accent"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:gravity="center"
        android:padding="40dp">

    </LinearLayout>

    <TextView
        android:id="@+id/message"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="@dimen/large_spacing"
        android:textSize="@dimen/medium_font_size"
        android:lineSpacingMultiplier="1.3"
        tools:text="Signal needs access to your contacts and media in order to connect with friends, exchange messages, and make secure calls."/>

</LinearLayout>