Jim Parkinson's Diablo typeface is a single weight display design. The look comes from samples found in early 20th century books on hand-lettering books, as well as general poster lettering styles from that same of the period. Diablo has a touch of the Arts and Crafts" movement in its appearance, and it also looks rather heavy. It is a unicase design, in that there is no real "lowercase." Some glyphs on the uppercase keys are alternates to the capital-style forms found on the lowercase keyboard, like A, E, F, H, J, K, M, N, Q, R, V, W, and Z. In fact, the uppercase itself is a bit more decorated and round than the lowercase. Nevertheless, the upper and lowercase letters may be freely interchanged with each other to create the best possible image for the text. The name of the typeface, Diablo, is another term for the devil, or Satan."