packages/MediaComponents/res/drawable/ic_skip_previous.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
        android:width="40dp"
        android:height="40dp"
        android:viewportWidth="24.0"
        android:viewportHeight="24.0">
    <path
        android:pathData="M6,6h2v12L6,18zM9.5,12l8.5,6L18,6z"
        android:fillColor="#FFFFFF"/>
</vector>