In handwriting it was common not to close the bottom of the loop but continue into the leg, saving an extra pen stroke.
His pen strokes swept down to the mainland, then turned sharply to flow around the bump.
It has a feature for recording pen strokes and playing them back as an animation.
Most of the glyphs are written with one or two simple pen strokes.
It has been suggested that the meaningful text could be encoded in the length or shape of certain pen strokes.
Parts of some pen strokes disappear; others appear slightly out of registration.
With a pen stroke, a very different Ford presidency emerged.
The scanners can pick up accidental pen strokes or fail to record marks.
At first glance, the change appears to be merely a bureaucratic pen stroke.
Thanks in part to her work, great swaths of land were set aside with a single presidential pen stroke.