I just bought your program partly because I think that it's what programs should be: no menus, no hidden things, simple layout and no copy/paste!
And also because I wanted transclucent brushes and thought that thinners would do it (like painting with mostly turpentine with very little paint for pigment). I learned that they don't
Painting with transparency would allow colored overlays and darkening/lightening of the painting without doing a whole partial repaint.
It also seems that palette knife has been changed in version 2. It no longer makes that long, slightly blended sharp stroke I used to highligh outlines of objects and to make lighting effects
Other tools have their personal texture so they do not work..
But for both of these I have a solution: Computer Millennium Brush!
It is just like ordinary round brush in any other graphics software. It has controls for softness, opacity, size and the possibility to connect all or any of these to stylus pressure. It has no texture and overlapping lines in the same stroke would only replace parts that are of lighter pressure (it wouldn't be additive, like current eraser for example).
This would make it possible to do colored overlays and untextured painting to partial areas and make it almost unnecessary to swap between PS and ArtRage. Soft enough brush is also similar to digital airbrush, so it would be two tools at once. Maybe non-additive digital eraser to go with it to easily make partially transparent layers?
I also noticed that pencil tool seems to ignore stylus' tilt? Is it really so? I would rather tilt the pen than set the tilt manually with the slider, it would be lot nicer for shading when sketching.
Is there a feature for setting airbrush to not run out of paint?
Ink pen or calligraphy pen with tilt support would be of use too, I guess.
From the new additions paint roller is very nice and plenty of fun!
I think that introducing that one unnatural, non-additive tool would make things a lot easier. And you could do it so much better than any other software company! Please?