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 used Helvetica as the system typeface of iOS until 2015. Helvetica has been widely used by the U.S. government; for example, federal income tax forms are set in Helvetica, and NASA used the type on the Space Shuttle orbiter. Helvetica is also used in the United States television rating system. The Canadian government also uses Helvetica as its identifying typeface, with three variants being used in its corporate identity program, and encourages its use in all federal agencies and websites. In the European Union, Helvetica is legally required to be used for health warnings on tobacco products such as e.g.