This is a gradation color shadow picture clock for Apple Watch, iPhone, iPad and Mac.
The time is ticked by the number of squares.
You can change the color pattern, shade, blur condition, etc. to your liking with touch/drag or rotate digital crown.
You can change the kind of stickers.
Also, it can be displayed as a beautiful hour clock in the Widget and the Complication on Apple Watch.
Please see the usage page from the ? icon on the upper left of the screen.