如何在aTabItem (TabLayout)中更改文本的大小和字体？

<android.support.design.widget.TabLayout
    android:id="@+id/tabLayout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <android.support.design.widget.TabItem
        android:text="Tab 1" />

    <android.support.design.widget.TabItem
        android:text="Tab 2" />

    <android.support.design.widget.TabItem
        android:text="Tab 3" />

</android.support.design.widget.TabLayout>

<android.support.v4.view.ViewPager
    android:id="@+id/viewPager"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

ViewPager viewPager = findViewById(R.id.viewPager);
PagerAdapter pagerAdapter = new PagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(pagerAdapter);

TabLayout tabLayout = findViewById(R.id.tabLayout);
tabLayout.setupWithViewPager(viewPager);

<style name="CustomTabLayout" parent="Widget.Design.TabLayout">
    <item name="tabTextAppearance">@style/CustomTabTextAppearance</item>
</style>

<style name="CustomTabTextAppearance" parent="TextAppearance.Design.Tab">
    <item name="android:textSize">16sp</item> <!-- 设置文本大小 -->
    <item name="android:typeface">monospace</item> <!-- 设置字体 -->
</style>

<android.support.design.widget.TabLayout
    android:id="@+id/tabLayout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    style="@style/CustomTabLayout">

    <!-- TabItems -->

</android.support.design.widget.TabLayout>