<p dir="auto">When tapping a image (i.e. hero) that is below the app bar, the hero animation immediately places it on top (this particular animation is not so bad). When pressing the back button, the moment when the app bar comes back on top is late an noticeable, making the animation look janky.</p>
<p dir="auto">Open Gallery, open pesto, scroll up enough to minimize the app bar. Tap a recipe.</p>
<p dir="auto">Notice how the app bar immediately disappears, before the recipe begins its motion up. This is a jarring effect that the user could notice.</p>
<p dir="auto">We could try something more subtle, like animating or fading the app bar away as the recipe opens?</p>