How to customize the font and color of “….is typing..” indicator

[hellfreya]

You can change the value of one of the styles.
Override the style and change the value of sb_appbar_description_appearance as shown below.

<style name="Component.Header.Channel">
    <item name="sb_appbar_description_appearance">@style/MyCustomTextAppearance</item>
    
    <item name="sb_appbar_right_button_icon">@drawable/icon_info</item>
    <item name="sb_appbar_right_button_tint">@color/primary_300</item>
    <item name="sb_appbar_right_button_background">@drawable/sb_button_uncontained_background_light</item>
</style>

<style name="MyCustomTextAppearance">
    <item name="android:textSize">custom_size</item>
    <item name="android:textColor">custom_color</item>
</style>