I’m not sure if that explains your question, but basically image that only Alpha channels are blended.
Usually, blend modes work like this (blend_algo might be for example Overlay algorithm):
blend_algo(R1, R2)
blend_algo(G1, G2)
blend_algo(B1, B2)
normal_algo(A1, A2)
but mine work like this (in bacis Normal version):
normal_algo(R1, R2)
normal_algo(G1, G2)
normal_algo(B1, B2)
blend_algo(A1, A2)
Sorry for lack of updates. I’m stretched thin lately by work and personal stuff, so it’s hard for me to find time and energy for development, for now.
Beautiful!!!
Hello! Is there any news about the new mode? I’m about to start a new book in which I’ll be doing watercolor-style backgrounds, and I remembered this post. Is there any way to download or install it?
Interesting feature. Is already done? Or downloadable for testing?
Maybe the blending mode is done. What haven’t been decided is the interaction. I’m on the camp of separating color and alpha blending modes.
Hello Ramon,
There was an earlier appimage with this new blend mode added:
Cheers
Yeah sorry for silence but I don’t have much energy for extra project lately.
I’m too much stretched between freelance work, my own game project and relationship xD
I want to work on this again just not sure when I will have energy. Sad thing is it was almost finished and as @Reptorian said the issue arised how to make it more extendible, but mostly lack of my time killed progress.
I think at start it could be added as 2-3 simple modes that would be already usable and how to make it work as a mix with other blending mode can be tackled in future I guess.
Do whatever you need. That way you will recover your motivation for the future. 
Forgive me for being such a newcomer, but how can I try this please? I’m interested even if it’s currently unfinished.
Hello @Zambunny, and welcome to the forum!
It seems you are a little lazy about reading? If this were different, you would have seen Dimitri’s post, in which a package is offered for download for Windows and for Linux…
Michelist
Thanks. Last night I actually was able to download the package, but now I don’t know how it should be used. I can’t seem to find a way to add new blending modes in the Krita manual and a Google search didn’t help. I also tried with the resource manager. But I may have missed something.
This is an experimental feature, you won’t find it in the manual.
But, I would look for the blending modes where all the blending modes are. I can not tell if they are there, because I have not tested this, but that is the place where I would search. And I would read up this topic, as well as all posts and topics linked to from this topic…
Or you take a look below the “Quadratic”-Blending Modes.
Michelist
Upps!
Package? Did you download the one of complete Krita-Version’s I linked in my former post, or did you download something different? Because you are talking about the resource-manager???
Michelist
I am downloading the windows release. I want to test it, even when it is not finished.
I had a few difficulties running the prealpha (the main window wouldn’t load) but in the end I was able to test this blending mode. I hope the project becomes part of an official release one day soon.
Great blending mode! This does a lot to alleviate one of my pain points in Krita (smudge engine opacity), which it looks like SirPigeonz is already aware of lol.
Hopefully this will get merged sooner than later 
A small integration released into the Krita proper would be nice, a sort of sample of it designed to hold us over. Maybe we can find a way to pick out 6 to 10 of our preferred ones.
@UndeadDave
I’m curious, could you show how the difference this makes for the smudge engine opacity issue and maybe share a finished piece that took advantage of this new wet Alpha blend mode.
Sorry for resurrecting an old thread, but is this project completely dead? I was very interested.
Isn’t this more than enough an answer?
Since then, nothing changed, because if so, you could read about it right here. But exactly the day of that @SirPigeonz’s posting was the last day he was seen here on KA.
If I had to guess, then I would say this project is dead, at least as long as someone might find it interesting and continues working on it. But I have no idea if @SirPigeonz repo on this is public and reflects the last state of his development, and all his repo’s on GitHub have nothing to do with this project. This means, all the work done on this might be vanished in the void if it can’t be accessed online, if that should be the case, then it is super dead.
And about his GitHub activity, there he has vanished too and made its last contribution shortly after his last reply here.
Michelist