RetroMusicPlayer/app/src/main/res/font/circular.xml

<?xml version="1.0" encoding="utf-8"?>
<font-family xmlns:android="http://schemas.android.com/apk/res/android">
    <font
        android:font="@font/circular_std_book"
        android:fontStyle="normal"
        android:fontWeight="400" />
    <font
        android:font="@font/circular_std_medium"
        android:fontStyle="normal"
        android:fontWeight="600" />

    <font
        android:font="@font/circular_std_black"
        android:fontWeight="900" />

</font-family>