Awesome!
Curious if my post inspired you a bit.
This post
The video you showed looks great.
A little related. But I have an idea for how to organize/find blend modes faster, I love blend modes and even if we have many already I welcome any new ones that can find use.
Might post a feature req.
Krita stands out in the quantity of blend modes but is kind of lacking in way of switching between them quickly
I used some Greater blend mode in this setup as well: