Teenage Engineering came out with a fantastic new update, described in this video. I made a cheatsheet for the first version, and these are the relevant UI changes, marked in blue.

Champions update changes cheatsheet
CTA Image

In case you like what I do, I also made a calendar app for ADHD.

Sure, I'll check it out!
Full K.O. II EP-133 cheatsheet with Champions update changes and colored sections
Full K.O. II EP-133 cheatsheet with Champions update changes and plain section borders
Calendar for ADHD with a 24h dial
Your events on a fixed 24h dial

Again, if you like my stuff, I also made this app.

If you or someone you know has ADHD, dyscalculia or time blindness, it might help. (I designed it for me, and it's helped me.)