One of the elements that I had discussed yesterday was audio as a signal for user experience. The same can be applied to animation.
Essentially, animation can help the user understand that there is “something” happening with the app and create positive feedback and peace of mind when encountering and/or using the app.
For instance, I don’t have to have the gear turn when you drag and drop an image into the app as it can work without that, but, it helps the user know that something working and that they performed the correct action.
See here for a live preview:
Animation can deepen user experience and bring the app to life in subtle yet powerful ways. Use it wisely and well!