session-android/res/layout/conversation_item_sent_document.xml

<?xml version="1.0" encoding="utf-8"?>
<org.thoughtcrime.securesms.components.DocumentView
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/document_view"
        android:layout_width="210dp"
        android:layout_height="wrap_content"
        android:visibility="gone"
        app:doc_titleColor="?conversation_item_sent_text_primary_color"
        app:doc_captionColor="?conversation_item_sent_text_secondary_color"
        app:doc_downloadButtonTint="?conversation_item_sent_download_icon_color"
        tools:visibility="visible"/>