simplauncher/app/src/main/res/drawable-v21/ic_chevron_left.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="?android:colorForeground"
        android:pathData="M15.41,7.41L14,6l-6,6 6,6 1.41,-1.41L10.83,12z" />
</vector>