We have added QuartzCompositions support for the PhotoStyler, at last. I can’t say this feature is very important, but it brings some new possibilities for photo editing what is always good.
Here is “Blueprint” system Quartz composition applied to a photo with PhotoStyler:

And this is composition preferences pane:

Quartz filter in PhotoStyler 4.0 supports system compositions and user-defined files as well. I don’t recommend to use this filter too often since it’s slower that regular PhotoStyler filters even when they implement the same functionality!