tachiyomi/app/src/main/res/layout/navigation_header.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="@dimen/navigation_drawer_header_height"
    android:gravity="bottom"
    android:theme="@style/ThemeOverlay.AppCompat.Dark">

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@color/colorPrimary" />

    <ImageView
        android:layout_width="64dp"
        android:layout_height="64dp"
        android:layout_marginLeft="16dp"
        android:layout_marginTop="@dimen/navigation_drawer_header_margin"
        android:scaleType="centerCrop"
        android:src="@drawable/tachiyomi_circle" />

</FrameLayout>