google-material-design-icons/android/file/topic/materialiconsround/black/res/drawable/round_topic_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="M20,6h-8l-1.41,-1.41C10.21,4.21 9.7,4 9.17,4H4C2.9,4 2.01,4.9 2.01,6L2,18c0,1.1 0.9,2 2,2h16c1.1,0 2,-0.9 2,-2V8C22,6.9 21.1,6 20,6zM13,16H7c-0.55,0 -1,-0.45 -1,-1c0,-0.55 0.45,-1 1,-1h6c0.55,0 1,0.45 1,1C14,15.55 13.55,16 13,16zM17,12H7c-0.55,0 -1,-0.45 -1,-1c0,-0.55 0.45,-1 1,-1h10c0.55,0 1,0.45 1,1C18,11.55 17.55,12 17,12z"/>
</vector>