google-material-design-icons/android/action/minimize/materialiconsround/black/res/drawable/round_minimize_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="M7,19h10c0.55,0 1,0.45 1,1s-0.45,1 -1,1H7c-0.55,0 -1,-0.45 -1,-1s0.45,-1 1,-1z"/>
</vector>