Areas for icons should have some space reserved for optical balancing. It’s crucial for sets of icons, which should look consistently.
Animation is not about making your app cool. It’s about providing your users with the experience they expect.
Delightful details lose their charm over time. Delight has a shelf life, and even the most delightful details can start feeling stale after a while. To keep things fresh, you’ll probably have to redesign the same things over and over again.