Trying to achieve maximum readability and symbol differentiation within a reasonable size.
This is a clone of CatseyeCode7x15RA clone of the variable-width pixel font PlainAndSimple (itself a clone of Nano OK) that adds small serifs to many letters and some numbers, with the same weight as the rest of the font. Numbers are full-size here (about the size of a capital letter) instead of the narrrow versions in PlainAndSimple, with a slashed zero. Several other things have been updated, usually relating to the wider max width that the serifs require.
This is a clone of PlainAndSimple