2026-01-03|Sunatori's Monospaced Font Differentiation
Potential Discovery or Invention
Monospaced fonts are specifically created to ensure clear differentiation among easily confusable characters (homoglyphs) like 0 (Digit zero), O (Uppercase O), I (Uppercase I), l (Lowercase l), 1 (Digit one), and | (Vertical bar). Here is comparison among 4 monospaced fonts (Courier, Menlo, Monaco, and SF Mono) on iOS/macOS. As a result, my clear choice is Menlo.