LUTs, overlays, transitions and Lottie animations.
Download icon: the arrow drops in, bounces, then falls into the tray, which squashes to catch it.
Celebration burst: 16 confetti bits in six colours fly out, tumble, fall under gravity and fade to nothing.
Steel: near-monochrome civic grade, cold and hard, with faces kept warm and alive.
Glass tower: crisp blue-steel highlights over teal shadows, clean corporate contrast.
Night shift: darker, colder civic grade with deep teal shadows.
Concrete: heavily desaturated, hard-contrast civic grey with only skin left in colour.
Overcast: a grey-sky civic grade with cool highlights and teal-grey shadows.
Cold civic: desaturated teal shadows, neutral skin, hard modern contrast.
Success confirmation: a green disc pops in with a little overshoot, a ring ripples out and the tick draws itself on.
Notification bell that rings from its top pivot with a lagging clapper and a pulsing red badge, then rests.
