space-android/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  Nextcloud Android client application

  Copyright (C) 2017 Andy Scherzinger

  This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
  License as published by the Free Software Foundation; either
  version 3 of the License, or any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU AFFERO GENERAL PUBLIC LICENSE for more details.

  You should have received a copy of the GNU Affero General Public
  License along with this program.  If not, see <http://www.gnu.org/licenses/>.
-->
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
    <background android:drawable="@mipmap/ic_launcher_background"/>
    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
</adaptive-icon>