app/src/main/res/drawable/bg_btn_outline.xml

<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
    android:color="#22000000">
    <item>
        <shape android:shape="rectangle">
            <corners android:radius="12dp" />
            <solid android:color="@color/card_bg" />
            <stroke android:width="1dp" android:color="@color/divider" />
        </shape>
    </item>
</ripple>