java/com/android/contacts/common/res/drawable/ic_more_vert.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
  android:height="24dp"
  android:viewportHeight="24.0"
  android:viewportWidth="24.0"
  android:width="24dp">
  <path
    android:fillColor="#FF000000"
    android:pathData="M12 8c1.1 0 2-.9 2-2s-.9-2-2-2-2 .9-2 2 .9 2 2 2zm0 2c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2zm0 6c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2z"/>
</vector>