teapod/app/src/main/res/color/bottom_nav_item_tint.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:color="?attr/colorPrimary" android:state_checked="true"/>
    <item android:color="?attr/iconColor"/>
</selector>