I think all of the UX students this year have referenced UI animation in one way or another. It’s such an important part of modern UI design, and it’s very easy to mess it up—mostly by going too far. This article provides some useful guidance and warnings.
The year is 2018, interface design tools are finally incorporating animation, but many are missing the mark. They’re naively bolting on animation, instead of giving users handles to control animation timing. Consequently, there’s now a landscape of software tools promoting mushy animation.
There’s a wealth of knowledge embedded in classical animation. We don’t need to reinvent the wheel.