I scanned all disks, I've only seen "Bravo Romeo Delta" (a 1992 game) and a Romeo Knight music disk. But the site has a pointer editor, did it look like this?

https://heckmeck.de/pointers/?user-content=00000000000000000...

I've also scanned all "tiny" cursors with 13 pixels or less. Surprisingly, there is no pointer with this exact shape yet!

There was no way around the kiwis, they New Zealand Amiga Users Group was very productive back in the day!

"Low threshold activity" is a good point.

While editing the mouse pointer of a modern-day OS is pretty much inaccessible, the "cursor" CSS feature in the major browsers immediately felt low threshold, accessible and fun again. Changing the "real" mouse pointer via CSS! Only on a website, but cool nonetheless!

That little fun feature alone helped getting this project off the ground. I tried to make my adaption of the pointer editor low threshold, too! :)

How is that 140b? I see serveral hundred bytes of "contoller and display" logic