vcmi/android/vcmi-app/src/main/res/drawable/recycler_divider_drawable.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <size
        android:width="1px"
        android:height="1px" />
    <solid android:color="@color/accent" />
</shape>