Optical correction

Drawing something measurably wrong so that it looks right, which is most of what separates a drawn letter from a generated one.

Near it

what it is	drawing a thing wrong on purpose so that it looks right
this shelf makes it, one: the overshoot	round letters are drawn past the line the flat ones stop on: on the capital O, 1.9 per cent of the cap height on eight families and up to 8.9 on Drew Poster, sixteen families in all	see the overshoot entry for the whole table, measured on the fixed shelf 2026-09-24
this shelf makes it, two: the crossbar	the H's bar sits ABOVE the true centre on 19 of 23 families, sixteen of them between 0.52 and 0.61 of the cap height	a bar on the exact middle reads low. Nothing in this tree instructs that; it is in the drawing. Measured on the fixed shelf, 2026-09-24; see the crossbar entry
and this shelf does NOT make the third	thinning the horizontals where they cross a vertical	the four walls of the o differ by at most 1.083 to 1 on twenty-one of the twenty-three families, so the shelf is monolinear and a crossing is as thick as the strokes that make it. Named here as not done rather than left out, because a list of corrections a house makes is only useful beside the ones it does not