action/drawable-anydpi-v21/ic_trending_down_black_24dp.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
        android:width="24dp"
        android:height="24dp"
        android:viewportWidth="24.0"
        android:viewportHeight="24.0">
    <path
        android:fillColor="#FF000000"
        android:pathData="M16,18l2.29,-2.29 -4.88,-4.88 -4,4L2,7.41 3.41,6l6,6 4,-4 6.3,6.29L22,12v6z"/>
</vector>