I really enjoy working with my PSS in my laptop. It is a great software with a lot of amazing features. Here are my three grains of sand to make it even better:
It will help if the "ESC" key can reset the rotation tool.
I miss having the History tool to comeback at a certain point of the illustration to see the difference between "then" and "now".
The color wheel could improve if has dots where you can see complementary colours, triads, etc. and if has a Lab color Tab as the RGB and HSV.
I would like to support too the idea of having adjustment layers with masks as Photoshop has.
Thanks for this software, it has become my favourite tool to illustrate.
Esc and History.
Re: Esc and History.
Undo is working on a free-transform process. Also, you can hold Shift to align the rotation