If the protocol specifies just something you (the toolkit) can put anything on it then it doesn't matter. We can have things like.
Originally Posted by uid313
or a everytime a window is not responding with Eduard Khils song blasting full volume on the speakers.
I don't know why you found it strange. From what I remember, you take a PNG with a text file that lists the hot spot and use xcursorgen to generate a binary file. Xcursorgen is standard program that can be installed from your distro's repo. You can even use it to make animated cursors.
Originally Posted by mark45