The backslash in Johto Mono is the perfect way to add a touch of retro to your text. In computing, a backslash is the name of the reverse solidus (\) character, which is used as a quotation mark in some programming languages (such as Perl, PHP and Windows PowerShell), as a file path separator in MS-DOS and Microsoft Windows, and as a directory separator in many Unix and Unix-like systems, such as Linux and macOS. The backslash is a small, diagonal line.