G'MIC works fine now (at least, for Windows - not sure about Mac?)
For those who wish to test this:
- Visit
https://gmic.eu/download.shtml
- Click on the link for the Paint.NET version
https://forums.getpaint.net/topic/11356 ... 1-12-2019/
- download either the 64bit or 32bit version. I tested the 64bit version.
- Unzip to a folder. I extracted the content to a plugins folder of mine.
- Open PhotoLine, FILTER-->EXTERNAL PROGRAMS-->MANAGE EXTERNAL PROGRAMS
- Add a new entry, and point it to the gmic_paintdotnet_qt.exe file.. Pick PNG as intermediate file format
That is it! Explore 397 high-quality effects and filters, and have some fun!
Many thanks to the PhotoLine Devs!