Hi. I have a quick suggestion if I may - my apologies if it's already been mentioned in the past.

I was using the palette knife and was thinking about how cool it would be if I could lock the rotation quickly and temporarily with a key press. I think it would feel considerably more natural than going to the settings window, clicking 'lock rotation' and then entering a percentage (and a personal grumble - why not degrees?).

It would feel so much more intuitive if you could lock the rotation at whatever angle the tool is currently at with by a quick button press or hold; much more like maneouvering an actual palette knife, holding it still, dragging then moving on - and with less interface faffing too, keeping you in the painting.

I'd love to see something like this (it would work well for the roller too).