LottieSample/src/main/res/color/bottom_bar_label.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_checked="true" android:color="#4A4F54" />
    <item android:color="#A1A4A6" />
</selector>