This is a file type plugin that allows reading and writing of JPEG XR (aka HD Photo) image files. There has been an HD Photo plugin before, developed by Rick Brewster, that is no longer being maintained, however. That's why I decided to rewrite it and add some minor improvements (jxr file extension support, option to save as 8bpp grayscale, fixed and much improved metadata support).
Almost all pixel formats supported by JPEG XR can be loaded. However, Paint.NET requires the image to be stored as 32bpp RGBA in memory, so other source image f