google-material-design-icons/android/communication/duo/materialiconsround/black/res/drawable/round_duo_24.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="24dp"
    android:height="24dp"
    android:viewportWidth="24"
    android:viewportHeight="24"
    android:tint="?attr/colorControlNormal">
  <path
      android:fillColor="@android:color/white"
      android:pathData="M20,2h-8C6.38,2 2,6.66 2,12.28 2,17.5 6.49,22 11.72,22 17.39,22 22,17.62 22,12L22,4c0,-1.1 -0.9,-2 -2,-2zM17,15l-3,-2v2L7,15L7,9h7v2l3,-2v6z"/>
</vector>