habitica-android/Habitica/res/layout/notification_item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/notification_item"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:paddingStart="20dp"
    android:paddingTop="10dp"
    android:paddingEnd="20dp"
    android:paddingBottom="10dp">

    <com.habitrpg.common.habitica.views.PixelArtView
        android:id="@+id/notification_image"
        android:layout_width="48dp"
        android:layout_height="48dp"
        android:layout_marginEnd="20dp"
        android:background="@color/transparent"
        android:layout_gravity="center_vertical"
        android:visibility="gone" />

    <TextView
        android:id="@+id/message_text"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="6dp"
        android:layout_marginBottom="6dp"
        android:layout_weight="1"
        android:lineSpacingExtra="5dp"
        android:text="Message" />

    <ImageView
        android:id="@+id/dismiss_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="10dp"
        android:background="@color/transparent"
        android:clickable="true"
        android:focusable="true"
        android:padding="10dp"
        android:src="@drawable/notification_close" />

</LinearLayout>