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

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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="wrap_content"
    android:gravity="center_vertical">

    <ImageButton
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="8dp"
        android:background="?selectableItemBackgroundBorderless"
        android:contentDescription="@string/label_settings"
        android:padding="8dp"
        app:srcCompat="@drawable/ic_settings_24dp"
        app:tint="?attr/colorOnBackground" />

    <!-- Matches ID used in SwitchPreferenceCompat -->
    <androidx.appcompat.widget.SwitchCompat
        android:id="@+id/switchWidget"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>