Just tap around, chose preset that you like most and have fun.
flick to cast a radiating ball,
tap to cast a ring,
tap multiple times to create many splashes,
and hold for hypnotic kinda looking thing.
To set as live wallpaper go to wallpaper app, scroll down select live wallpapers and select it there.
I might add more stuff later, idk, advanced customisation options or sth.