In that image, I see 1-3px AA. Not 1px. What GIMP did was add a px between the already existent border and the solid colours. In your image, I see the pure black pixels compose the "old" image and then there are 3 added pixels with descending opacity. Am I wrong? But in my case it needs more AA to look good.
I installed the plugin but I am unsure of how to continue. I have never used plugins before. How should I proceed?
I installed the plugin but I am unsure of how to continue. I have never used plugins before. How should I proceed?