DT is a font suggested by Don Knuth and illustrated in TUGboat V8N2. It contains
65 levels of gray from white to black.

To create a new version of font dt, you must run MF on the file dt300.mf. If,
for example, you want a different resolution than 300dpi, you could copy
dt300.mf to dt240.mf, modify the pixels_per_inch to reflect 240dpi, and then
run MF on dt240. When done, rename the 240gf and tfm files to be dt instead of
dt240 (or waits).