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IBM Plex

From Wikipedia, the free encyclopedia
Open source typeface family
IBM Plex Sans
CategorySans-serif
ClassificationGrotesque
DesignersMike Abbink
Paul van der Laan
Pieter van Rosmalen
FoundryIBM
Bold Monday
LicenseSIL OFL
Latest release version3.5
Latest release date20 September 2023; 2 years ago (2023-09-20)
IBM Plex Sans Condensed
CategorySans-serif
ClassificationGrotesque
DesignersMike Abbink
Paul van der Laan
Pieter van Rosmalen
FoundryIBM
Bold Monday
LicenseSIL OFL
Latest release version1.4
Latest release date28 July 2022; 3 years ago (2022-07-28)
IBM Plex Mono
CategoryMonospaced
DesignersMike Abbink
Paul van der Laan
Pieter van Rosmalen
FoundryIBM
Bold Monday
LicenseSIL OFL
Latest release version2.4
Latest release date21 December 2023; 22 months ago (2023-12-21)
IBM Plex Serif
CategorySerif
ClassificationTransitional
DesignersMike Abbink
Paul van der Laan
Pieter van Rosmalen
FoundryIBM
Bold Monday
LicenseSIL OFL
Latest release version3.1
Latest release date27 November 2023; 23 months ago (2023-11-27)

IBM Plex is anopen source typefacesuperfamily conceptually designed and developed by Mike Abbink atIBM in collaboration with Bold Monday to reflect the design principles of IBM and to be used for all brand material across the company internationally. Plex replacesHelvetica as the IBM corporate typeface after more than fifty years in 2017, freeing the company from extensive license payments in the process.[1]

Version 1.0 of the font family had four typefaces, each with eight weights (Thin, Extra Light, Light, Regular, Text, Medium, Semi-bold, Bold) andtrue italics to complement them.[2]

  • IBM Plex Sans – Agrotesquesans-serif typeface with a design that was inspired byFranklin Gothic. Other sans-serif classifications were rejected on the basis of being too soft (humanist), inefficient (geometric) and overly perfected (neo-grotesque). Some of Franklin Gothic's features such as the angled terminals, adouble-storey g and a horizontal line at the baseline of the 1 are used in IBM Plex Sans. On 7 April 2019,IBM Plex Sans Variable, avariable counterpart to IBM Plex Sans was released.
  • IBM Plex Sans Condensed – Acondensed variant of IBM Plex Sans.
  • IBM Plex Mono – Amonospaced typeface based on IBM Plex Sans. The italic design was inspired by the Italic 12 typeface used on theIBM Selectric typewriter; this is particularly evident with the italicisedi,j,t andx letters.
  • IBM Plex Serif – Atransitionalserif typeface with a design that was inspired byBodoni andJanson. Other serif classifications were rejected for being too humanist and outdated (old-style) and too clunky and unrefined for long text (slab-serif). Some of Bodoni's features such as ball terminals and rectangular serifs are used in IBM Plex Serif.

Unicode coverage

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As of version 1.0 the IBM Plex typefaces support over 100 languages with most that use theLatin alphabet (includingVietnamese), as well asCyrillic (except in IBM Plex Sans Condensed). In version 3.0 of IBM Plex Sans, support formonotonic Greek was added.[3] For other writing systems separate fonts were made without italics:

  • IBM Plex Sans Hebrew – Adding support for theHebrew writing system.
  • IBM Plex Sans Thai – Adding support for theinformal looplessThai script, released on 15 October 2018.[4]
  • IBM Plex Sans Thai Looped – Adding support for the formal looped Thai script, on 5 April 2019.[5]
  • IBM Plex Sans Devanagari – Added support for theDevanagari writing system, released on 14 December 2018.[6]
  • IBM Plex Sans Arabic – Added support forArabic script, released on 13 March 2019.[7]
  • IBM Plex Sans Korean – Added support for theHangul alphabet, released on 8 June 2020.[8]
  • IBM Plex Sans Japanese – Added support forJapanese writing system, released on 24 July 2021.[9]

In addition, both Mike Abbink and Bold Monday have confirmed to be working on support forCJK,Bengali,Tamil andKannada.[10][11][12]

There is also support for common mathematical and currency symbols (includingBitcoin (₿)#U+20BF which was ratified into Unicode in 2017) as well asligatures such as fi and fl, along withstylistic alternates for a, g and 0.

There are a few unreleased symbols for IBM Plex Sans Condensed, IBM Plex Mono and IBM Plex Serif such as thegeneric currency sign (¤),prime symbol (′) and double prime symbol (″). In addition Mike Abbink has confirmed support for theMathematical Operators block and support for the symbols used in theAPL programming language in 2019.[13][14]

TheFCC#EFCC andCE marking#ECE0 logos are encoded as glyphs within thePrivate Use Area.[15] Prior to version 1.0, five IBM logos (solid and 8-bar logos, and the I-Bee-M logo)#EBE1 to #EBE7 were also encoded as glyphs.

Licensing

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IBM has licensed the font files only under theSIL Open Font License (SIL OFL).[16] Between 9 August 2018 and 21 August 2018, the fonts were alsodual-licensed under theApache License. This dual-licensing arrangement was rescinded due to concerns that the Apache License is unsuitable for fonts.[17] The SIL OFL license isfree andopen-source, but building the fonts from source requiresFontLab Studio, which is proprietary software.[18]

Bold Monday also provide web development code inCSS,SCSS andJavaScript that is related to the fonts under the Apache License. Font packages innpm are also available.[19]

IBM Plex's name is reserved, as allowed by the SIL OFL, and trademarked as of December 2017.[20][21]

See also

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References

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  1. ^Quito, Anne (10 November 2017)."IBM has freed itself from the tyranny of Helvetica".Quartz. Retrieved14 November 2017.
  2. ^"IBM Plex - 03 Plexness".IBM. Retrieved14 August 2018.
  3. ^"Add support for (modern) Greek. #179".GitHub. Retrieved12 August 2018.
  4. ^"CHANGELOG.md".GitHub. Retrieved12 August 2018.
  5. ^"v1.4.1 – Add IBM Plex Thai Looped support".GitHub. Retrieved12 April 2019.
  6. ^"v1.2.3 - Davanagari support".GitHub. 14 December 2018. Retrieved14 December 2018.
  7. ^"Arabic support".GitHub. 13 March 2019. Retrieved13 March 2019.
  8. ^"5.0.0".GitHub. 8 June 2020. Retrieved15 June 2020.
  9. ^"Release v5.2.1 · IBM/plex".GitHub. Retrieved2021-07-26.
  10. ^"IBM Plex editable sources? #68".GitHub. Retrieved14 January 2018.
  11. ^"IBM Plex – 05 Specs".IBM. Retrieved14 August 2018.
  12. ^"Kannada typeface #257".GitHub. Retrieved15 July 2019.
  13. ^"Suggestion: ≔ and ≝ #122".GitHub. Retrieved23 January 2018.
  14. ^"APL Glyphs Absent #176".GitHub. Retrieved23 January 2018.
  15. ^"IBM Plex". Font Squirrel. Retrieved11 January 2018.
  16. ^"LICENSE.txt".GitHub. Retrieved23 August 2018.
  17. ^"Add Apache license into all font folders (This will live as a dual license with the OFL) #190".GitHub. Retrieved9 August 2018.
  18. ^"Please allow building from source with a free toolchain #98".GitHub. Retrieved22 June 2018.
  19. ^"README - Building the fonts from source".GitHub. Retrieved22 June 2018.
  20. ^"Trade mark number UK00003255123".Intellectual Property Office (United Kingdom). Retrieved22 June 2018.
  21. ^"IBM Plex – Trademark Electronic Search System".United States Patent and Trademark Office. Archived fromthe original on 21 August 2018. Retrieved21 August 2018.

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