LibreTube/app/src/main/res/drawable/ic_rewind.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="40dp"
    android:height="40dp"
    android:tint="@android:color/white"
    android:viewportWidth="24"
    android:viewportHeight="24">
    <path
        android:fillColor="@android:color/white"
        android:pathData="m6,13c0,3.31 2.69,6 6,6 3.31,0 6,-2.69 6,-6 0,-3.31 -2.69,-6 -6,-6v4L7,6 12,1v4c4.42,0 8,3.58 8,8 0,4.42 -3.58,8 -8,8 -4.42,0 -8,-3.58 -8,-8z" />
</vector>