car-ui-lib/referencedesign/plugin/src/main/res/layout-port/toolbar_tab.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="0dp"
    android:layout_height="match_parent"
    android:layout_weight="1"
    android:orientation="vertical"
    android:paddingStart="12dp"
    android:paddingEnd="12dp"
    android:gravity="center"
    android:background="?android:attr/selectableItemBackground">
    <!-- we need to use android:tint instead of app:tint, because we're
        not using classes from androidx/appcompat such as AppCompatImageView -->
    <ImageView
        android:id="@+id/car_ui_toolbar_tab_item_icon"
        android:layout_width="36dp"
        android:layout_height="36dp"
        android:scaleType="fitCenter"
        android:tint="@color/toolbar_tab_item_selector"
        android:tintMode="src_in"
        tools:ignore="UseAppTint" />
    <TextView
        android:id="@+id/car_ui_toolbar_tab_item_text"
        android:layout_width="135dp"
        android:layout_height="wrap_content"
        android:singleLine="true"
        android:gravity="center"
        android:textAppearance="@style/TextAppearance.CarUi.Widget.Toolbar.Tab"/>
</LinearLayout>