Font
Doom and Strife use prebuilt graphics for menu items and level names, so they don't really have a "menu font" — the ones used here are from GZDoom, which reverse engineered and extended them.
Most fonts only handle English letters, digits, and basic punctuation. Strife's menu font has Latin-1 and Cyrillic letters; Doom's has extended Latin, Cyrillic, and Greek. ZDoom's console font supports all of Latin-1.