Neumorphism Metronome
An example of a Neumorphism implementation of a very simple metronome. Some are saying it is going to be a new biggest trend in User interface design in 2020.
There was a time when Skeuomorphism was a big trend, and was the iPhone UI up until iOS 7, and its back again with a New Approach called Neumorphism (New+Skeuomorphism).