Ratkeys™
By Quadrat
Ratcaps were designed as a set of highly-legible keycap fonts for use in software and systems documentation destined for in-house printing. They were specifically designed for clarity and legibility even on low-resolution laser printers. Ratcaps consist of representations of the basic alpha-numeric keyboard keys. Its companion Ratkeys fonts contain the special function and modifier keys. The fonts also come in a 3D-effect version.