Adjust the the layout of the category tiles, including font size and color.

<?xml version="1.0" encoding="utf-8"?>

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<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item

        android:state_activated="true"

        android:color="?android:colorAccent" />

    <item

        android:state_activated="false"

        android:alpha="0.54"

        android:color="?android:colorForeground" />

    <item

        android:color="?android:colorForeground"/>

</selector>

    <!-- Note, using dp instead of sp as this text is more like a "snapshot" of the font -->

    <dimen name="theme_option_font_text_size">16dp</dimen>

    <dimen name="theme_option_font_min_text_size">15dp</dimen>

    <dimen name="theme_option_title_font_text_size">12sp</dimen>

    <dimen name="option_tile_margin_horizontal">6dp</dimen>

    <dimen name="theme_option_label_margin">4dp</dimen>

    <style name="ActionSecondaryButton" parent="android:Widget.DeviceDefault.Button.Borderless.Colored"/>

    <!-- Option tiles -->

    <style name="OptionTitleTextAppearance" parent="TitleTextAppearance">

        <item name="android:textColor">@color/option_title_color</item>

        <item name="android:textAlignment">center</item>

        <item name="android:textSize">@dimen/theme_option_title_font_text_size</item>

    </style>

    <style name="CardTitleTextAppearance" parent="TitleTextAppearance">

        <item name="android:textStyle">bold</item>

        <item name="android:textSize">@dimen/card_title_text_size</item>