Comment 2 for bug 723660

For the monospace, a solution involving two thicknesses of strokes was chosen: normal width strokes, and then thinner strokes for some of the more detailed/noisy characters where clarity still needs to be maintained. These are clearly the difference where at that particular PPEM half of getting rounded up to 2 pixels and half are getting rounded down to 1 pixel.

"Full" hinting means using the manual hints, which are not in the monospace R21; however, as these test fonts have no hinting programs in them this should hopefully be cured by proper hinting.