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

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout  xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:fitsSystemWindows="true">
    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingTop="8dp"
        android:paddingBottom="12dp"
        android:paddingLeft="16dp"
        android:paddingRight="16dp"
        android:gravity="center"
        tools:background="@color/best_50">
        <TextView
            android:id="@+id/snackbar_title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            tools:text="This is the Title"
            android:gravity="center"
            android:textSize="18sp"
            android:visibility="gone"
            tools:visibility="visible"
            android:textColor="@color/white_75_alpha"/>
        <TextView
            android:id="@+id/snackbar_text"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            tools:text="This is the Content"
            android:gravity="center"
            android:textSize="12sp"
            android:textColor="@color/white_75_alpha"/>
    </LinearLayout>
</FrameLayout>