session-android/res/drawable/textlines.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
    <item>
        <shape android:shape="rectangle">
            <solid android:color="#22000000" />
        </shape>
    </item>

    <item android:top="1px">
        <shape
            android:shape="rectangle">
            <solid android:color="@color/white" />
        </shape>
    </item>

</layer-list>