What is the name of the 'corner swipe' to change motion animations on the Apple Watch? I've got the jellyfish motion animation on the face of my Apple watch. This has multiple different jelly fish.

I've found I can jump to the next jelly fish by doing a 'corner swipe'. This is swiping along the top left hand corner of the watch. 

I've never heard of a 'corner swipe' idiom. Does anybody have any information on it? I need to know the 'name' in order to find out more. 

My question is: What is the name of the 'corner swipe' to change motion animations on the Apple Watch?
From what I can tell, what makes the watch face advance to the next jellyfish is a tap. Your "corner swipe" must be just along the sensor in a way that it looks to the device like a tap.