1744–47), black and white chalks with white opaque watercolor, pen and ink framing on the edge ... s Fables (1668–94), all on blue paper. Drawing on Blue is perhaps best intended for the ...

There are some workarounds to this problem, but not many of them are as smooth an effortless as this one which uses erasable pen ink to add colors to the filament on the fly. Erasable pen ink is a ...