Slashed Zero
Replaces zero with slashed variant to better distinguish it from the letter O/o.
Required Ligatures
Replaces a sequence of glyphs with a ligature required for correct text display. (Required in various non-Latin scripts like Arabic) Active by default.
Ordinals
Replaces characters with ordinal forms for use after figures.
Case-Sensitive Forms
Shifts punctuation up to a position that works better with all-caps text.
