UPDATE:
In version 5, two new adjustments have been added: Monochrome Recolor and Duotone Recolor.
All adjustments and effects have significant performance improvements.
Version 5.0.4 - 5.0.5 :
Performance improvements in the DropShadow effect and Make Color transparent adjustment.
Added a circular mode to the Fade Edge effect.
Improved compatibility with portable Paint.NET installations.
Effects per category:
Drop Shadow: The "Drop Shadow" effe