Scaling is poor. I would understand crude scaling in the design area, but even after the icon is done, the scaling looks "jaggy" not smooth. Everything looks bad except at the default sizes. That's pretty constraining.

Also, wouldn't it be great if he app allowed you to move the icons around wherever you wanted, instead having a constrained canvas? Lots of icons don't use the full 128x128 pixels, yet FolderIconX assumes they do, and centralizes them. What if I want to move the icon a bit to the side? It's impossible...Yes, there is the triming function which addresses part of the issue. But it's still limiting. Also, what if I only want to use half of an icon as a "Logo"? It doesn't let you move the icon beyond the visible canvas.

Back in the day, there was an icon conextual menu called "Icon Tools" it was amazingly cool. Its developers killed it though. But it remains as one of the best icon tools ever. I think Folder Icon X could learn from it.

Overrall, it does the job, but it's lacking in quality and it's restrained in icon manipulation. Two stars, lots of improvements to go.