Hello!
I really loved playing around with the new fillp() possibilities, but it took me a little bit to understand how it actually worked (possibly because I'm primarily a web developer and this is quite far from any concept I've used before), so I made a small cart that helps visualize how exactly it works and what setting the different bits does. Maybe it will help someone else get a better understanding of it. If nothing else, it's fun to play around with :-)
Also this is my first post and my first published cartridge, so please let me know if I did anything wrong or if I could have done something better
Cheers