NOW, today I've found a fundamental flaw, actually. This little oversight had corrupted my very original concept without me fully realizing it, because it was partially working. I'm talking about the fluid drying. I always wanted it to be wet only where there is plenty of paint and if the paint barely covers the canvas, it would dry a lot quicker. Because I had a bunch of different concepts acting at once, I ended up mixing up red channel only framebuffers and actually alpha driven framebuffers. Since I caught it today, I've managed to finally make Verve act the way I always wanted it to. It's quite awesome, but also quite dramatically different than you know it. I'm willing to bet you will love it, though, because you can still have it like the old ways by turning off the drying or just turning it way down.
I'm still in the process of fine-tuning everything, but I may release a first test version very soon, if not even tonight?!
Again, this may scare some of you at first and it will most certainly have old settings that have used fluids act differently, but I'm convinced that this is as awesome as it feels to me right now.
I've also found another potential source for the blackness bug. It's very possible that this one is gone, too, but it's not clear... I rely on you guys to figure this out, haha, because I haven't run into that one myself in a long time.
So, yeah, this is a little internal celebration for me, but I really want to carefully prepare for a bigger change coming next...