Rebelle is very good. It’s fast, work fine at high resolution and so on. Less feature rich than painter (but that’s a good thing)

What’s still missing : the proper feel for dry materials (like charcoal) and a deep integration with the surface of the support. Right now it’s more or less a light depth map - nothing as gritty as wood, harsh paper (or even cloud ones)

My favorite at the moment.

And yeah, color mixing has been very good for a while there.