What Soraya did was to cover the cut copper wire with a layer of hard anti-corrosion coating so that it could be used for the City of Neverwinter's Three Supplies Project.
This process was easier than coating the inner wire, as the thickness did not require much accuracy.
After choosing the color card, Soraya turned the Magic Pen into a round tube. Once scanned from top to bottom, the "pigment" will become solid on the metal surface. It was a trick she learned from Anna—to make better use of magic power by changing its form.
