Nice. Can it be used to drag and drop new icons to replace the old one?
That's a very good question. Dual purpose.
Another good question. Should it work with Glow Icons & PNG Icons? Or just PNG Icons? Not sure yet.
Drop the old icon on the left & new icon on the right.
Choose "Save" & it does an icon exchange.
Afterwards the new image appears in both previews.
Change the Hue Value & choose "Test" . The color on the right changes. If you like the new icon color choose "Save".
Maybe after dropping the old on the left & new on the right, change the Hue Value to change the color of the new icon on the right before doing an icon exchange? Lots of good ideas.