The substitution could be illustrated better, as the image implies a cyclical substitution. When green runs out it continues with black, but then does it try A4 again? This feature appears rushed to release without sufficient thought/testing.
To avoid confusion, it would be clearer if there was a checkbox “Auto refill with different colours”
And the terms “AMS filament backup” and “Auto refill” should both be changed to use the same term to avoid confusion, perhaps “AMS Auto Refill”.
