I'm after a new blur effect. Imaging spinning a disc and photographing it with a shutter speed too slow to freeze the action. You'd end up with a rotational motion blur. A bit like linear motion blur but more spinny.
Is that something the Pixelmator team might be interested in working on for a future release?
In the mean time, I'm faking it by creating multiple copies of the object, rotationally offset either side by fractional degrees, each with decreasing opacity. These are then grouped and a little gaussian blur applied to blend the layers together. That seems to work.
What features would you like to see in Pixelmator Pro?