also an experimental TrueType font that uses the SIL Graphite technology to automatically turn these sequences into signs. Unicode SignWriting is the first writing system for sign languages to be included in the Unicode Standard. 672 characters were added in the Sutton SignWriting (Unicode block) of Unicode version 8.0 released in June 2015. This set of characters is based on SignWriting's standardized symbol set and defined character encoding model. The Unicode Standard only covers the symbol set. It does not address layout, the positioning of the symbols in two dimensions. Historically, software has recorded position using Cartesian (X-Y) coordinates for each symbol. Since Unicode focuses on symbols that make sense in a one-dimensional plain-text context, the number characters required for two-dimensional placement were not included in the Unicode proposal. The Unicode block for Sutton SignWriting is U+1D800–U+1DAAF: Current software records each sign as a string of characters in either ASCII or Unicode. Older software may use XML or a custom binary format to represent a sign. Formal SignWriting uses ASCII characters to define the two-dimensional layout within a sign and other simple structures. It would be possible to fully define a sign in Unicode with seventeen additional characters. With either character set (Unicode or ASCII), the spelling of a sign produces a word that the can be efficiently processed with regular expressions. These sets are isomorphic. Accessibility Sutton has released the International SignWriting Alphabet 2010 under the SIL Open Font License. The symbols of the ISWA 2010 are available as individual SVG or as TrueType Fonts. SignWriting 2010 Fonts project on GitHub Google has released an open type font called Noto Sans SignWriting that supports the SignWriting in Unicode 8 (uni8) specification with modifying characters and facial diacritics. SignWriting is enabled on Wikimedia Incubator with "The Javascript-based SignWriting Keyboard for Use on Wikimedia and throughout the Web" by Yair Rand. Test wikis include the ASL Wikipedia on Incubator and the other test wikis of sign languages. The Sutton SignWriting SignMaker (@sutton-signwriting/signmaker) is a sign editor that can be accessed directly, embedded in an iFrame, and downloaded. It uses both Formal SignWriting in ASCII (FSW) and SignWriting in Unicode (SWU) character sets, along with the associated style string. See draft-slevinski-formal-signwriting for detailed specification. For modern web and app development, several packages are available on GitHub and NPM. @sutton-signwriting/core - a javascript package for node and browsers that supports general processing of