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

<?xml version="1.0" encoding="utf-8"?>
<CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
                 android:id="@android:id/text1"
                 style="@style/Theme.Widget.SpinnerItem"
                 android:layout_width="match_parent"
                 android:layout_height="?attr/dropdownListPreferredItemHeight"
                 android:ellipsize="marquee"
                 android:singleLine="true"/>