Myriad (typeface) the Local Hard Disk Drive. Myriad Arabic was designed by Robert Slimbach, with the help of Adobe’s technical team as well as outside Arabic experts. The principal outside consultant was Dr. Mamoun Sakkal. Five weights of Myriad Arabic (which include Latin-alphabet characters) were licensed by Apple for inclusion with macOS, but must be manually enabled by the user. Myriad Hebrew is an extension of Adobe’s popular humanist sans-serif typeface Myriad, bringing the sensibility of Myriad into another language and another writing system. Myriad Hebrew is one of the most extensive families of Hebrew typefaces available today, comprising twenty different digital
Helvetica add subtle differences. Substitute Helvetica designs that have survived into or originated during the digital period have included Monotype's Arial, Compugraphic's CG Triumvirate, ParaType's Pragmatica, Bitstream's Swiss 721, URW++'s Nimbus Sans and Scangraphic's Europa Grotesk. Berthold itself responded to Helvetica's popularity with Akzidenz-Grotesk Buch, effectively a Helvetica clone. Besides Helvetica imitations, Helvetica was available in custom derivatives with unusual special-order characters for many years, notably a straight-legged 'R' and round-topped 'A'. CNN uses a custom derivative, "CNN Sans", which has a '1' with a base. URW (later URW++) under the leadership of Peter Karow produced a modification of Helvetica called