Hey Guys, Firstly love the programs!
As a digital painter I find three Features that would take this software from good to incredible for digital painters IMO.
First, a dedicated rotate tool, I know you can rotate the canvas already, but the loss in resolution and over all quality whilst in a rotated state is not only off putting, but makes detailing really difficult.
Secondly, the ability to paint with transparency, this has become a massive part of my process in programs such as clip studio and it really is invaluable
Thirdly, an option to destructively adjust a layer along side the Layer adjustments, I'm aware you can dock the adj layer into the current layer but, again the slows down and breaks the flow of a painting.