Signal-Android/app/src/main/res/layout/attachment_keyboad_media_item.xml

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

<org.thoughtcrime.securesms.components.SquareFrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_marginEnd="12dp"
    app:square_height="true">

    <org.thoughtcrime.securesms.components.ThumbnailView
        android:id="@+id/attachment_keyboard_item_image"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:thumbnail_radius="9dp" />

    <TextView
        android:id="@+id/attachment_keyboard_item_video_time"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_marginEnd="6dp"
        android:layout_marginBottom="6dp"
        android:background="@drawable/transparent_black_pill"
        android:fontFamily="sans-serif-medium"
        android:paddingStart="8dp"
        android:paddingTop="4dp"
        android:paddingEnd="8dp"
        android:paddingBottom="4dp"
        android:textColor="@color/core_white"
        android:textSize="13sp"
        android:visibility="gone" />

    <ImageView
        android:id="@+id/attachment_keyboard_item_video_icon"
        android:layout_width="27dp"
        android:layout_height="27dp"
        android:layout_gravity="bottom|end"
        android:layout_marginEnd="6dp"
        android:layout_marginBottom="6dp"
        android:background="@drawable/transparent_black_pill"
        android:paddingStart="9dp"
        android:paddingTop="7dp"
        android:paddingEnd="5dp"
        android:paddingBottom="7dp"
        android:visibility="gone"
        app:srcCompat="@drawable/triangle_right" />

</org.thoughtcrime.securesms.components.SquareFrameLayout>