Mighty Slab is a very heavy slab=serif font for titling, captions and logo. OpenType Format (.otf) with 531 glyphs! Extraordinary impact and super big x-height for more visual conspicuousness. 4 Layered color font! Simply, Stack same text with each styles in the same position. Mighty Slab One can also be used independently. Mac Roman ✓ Windows 1252 ✓ Adobe Latin 1 ✓ Adobe Latin 2 Almost all Adobe Latin 3 Almost all.