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词条 IBM Plex
释义

  1. Unicode coverage

  2. Licensing

  3. References

  4. External links

{{short description|Open source typeface family}}{{Infobox font
| name = IBM Plex Sans
| image = IBM Plex Sans sample.svg
| style = Sans-serif
| classifications = Grotesque
| date =
| creator = Mike Abbink, et al.
| foundry = IBM, Bold Monday
| latest_release_version = 3.1
| latest_release_date = {{Start date and age|2018|12|14|df=yes}}
| license = SIL OFL
| arabic = yes
| cyrillic = yes
| devanagari = yes
| greek = yes
| hebrew = yes
| ipa =
| latin = yes
|}}{{Infobox font
| name = IBM Plex Sans Condensed
| image = IBM Plex Sans Condensed sample.svg
| style = Sans-serif
| classifications = Grotesque
| date =
| creator = Mike Abbink, et al.
| foundry = IBM, Bold Monday
| latest_release_version = 1.1
| latest_release_date = {{Start date and age|2018|2|18|df=yes}}
| license = SIL OFL
| arabic =
| cyrillic =
| devanagari =
| greek =
| hebrew =
| ipa =
| latin = yes
|}}{{Infobox font
| name = IBM Plex Mono
| image = IBM Plex Mono sample.svg
| style = Monospaced
| classifications =
| date =
| creator = Mike Abbink, et al.
| foundry = IBM, Bold Monday
| latest_release_version = 2.0
| latest_release_date =
| license = SIL OFL
| arabic =
| cyrillic = yes
| devanagari =
| greek =
| hebrew =
| ipa =
| latin = yes
|}}{{Infobox font
| name = IBM Plex Serif
| image = IBM Plex Serif sample.svg
| style = Serif
| classifications = Transitional
| date =
| creator = Mike Abbink, et al.
| foundry = IBM, Bold Monday
| latest_release_version = 2.5
| latest_release_date = {{Start date and age|2018|10|15|df=yes}}
| license = SIL OFL
| arabic =
| cyrillic = yes
| devanagari =
| greek =
| hebrew =
| ipa =
| latin = yes
|}}IBM Plex is an open source typeface superfamily conceptually designed and developed by Mike Abbink at IBM in collaboration with Bold Monday to reflect the brand spirit, beliefs and design principles of IBM and to be used for all brand experiences across the company internationally. Plex will replace Helvetica as the corporate typeface after more than fifty years, freeing IBM from the extensive license payments that face required.[1]

As of version 1.0 the family has four typefaces, each typeface has 8 weights (Thin, Extra Light, Light, Regular, Text, Medium, Semi-bold, Bold) and true italics to complement them.[2]

  • IBM Plex Sans – A grotesque sans-serif typeface with a design that was inspired by Franklin 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, a double-storey g and a horizontal line at the baseline of the 1 are used in IBM Plex Sans.
  • IBM Plex Sans Condensed – A condensed variant of IBM Plex Sans.
  • IBM Plex Mono – A monospaced typeface based on IBM Plex Sans. The italic design was inspired by the Italic 12 typeface used on the IBM Selectric typewriter, this is particularly evident with the italicised i, j, t and x letters.
  • IBM Plex Serif – A serif typeface with a design that was inspired by Bodoni and Janson. 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

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

  • IBM Plex Sans Hebrew – Adding support for the Hebrew writing system.
  • IBM Plex Thai – Adding support for loopless Thai script, released on 15 October 2018.[4]
  • IBM Plex Devanagari – Added support for the Devanagari writing system, released on 14 December 2018.[5]
  • IBM Plex Arabic – Added support for Arabic script, released on 13 March 2019.[6]

In addition, both Mike Abbink and Bold Monday have confirmed to be working on support for CJK, Bengali and Tamil.[7][8]

There is also support for common mathematical and currency symbols (including Bitcoin (₿) #U+20BF which was ratified into Unicode in 2017) as well as ligatures such as fi and fl, along with stylistic 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 the generic currency sign (¤), prime symbol (′) and double prime symbol (″). In addition Mike Abbink has confirmed support for the Mathematical Operators block and support for the symbols used in the APL programming language in 2019.[9][10]

The FCC #ECE0 and CE marking #EFCC logos are encoded as glyphs within the Private Use Area.[11] 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

IBM has licensed the font files for all four typefaces only under the SIL Open Font License (SIL OFL).[12] Although between 9 August 2018 and 21 August 2018, the fonts were additionally dual-licensed under the Apache License. This dual-licensing arrangement was rescinded due to concerns that the Apache License is unsuitable for fonts.[13] The SIL OFL license is free and open-source, however FontLab Studio which is proprietary software is required in order to build the fonts from source.[14]

Bold Monday also provide web development code in CSS, SCSS and JavaScript that is related to the fonts under the Apache License.[15]

IBM Plex's name is reserved, as allowed by the SIL OFL and trademarked as of December 2017.[16][17]

References

1. ^{{cite web|url=https://qz.com/1124664/ibm-plex-with-its-first-ever-custom-corporate-font-ibm-is-freeing-itself-from-the-tyranny-of-helvetica/ |first1=Anne |last1=Quito |title=IBM has freed itself from the tyranny of Helvetica |publisher=Quartz |accessdate=14 November 2017 }}
2. ^{{cite web|title=IBM Plex - 03 Plexness|url=https://www.ibm.com/plex/plexness/|publisher=IBM|accessdate=14 August 2018}}
3. ^{{cite web|url=https://github.com/IBM/plex/issues/179|title=Add support for (modern) Greek. #179|publisher=GitHub|accessdate=12 August 2018}}
4. ^{{cite web|url=https://github.com/IBM/plex/blob/master/CHANGELOG.md|title=CHANGELOG.md|publisher=GitHub|accessdate=12 August 2018}}
5. ^{{cite web|url=https://github.com/IBM/plex/releases/tag/v1.2.3|title=v1.2.3 - Davanagari support|publisher=GitHub|date=14 December 2018|accessdate=14 December 2018}}
6. ^{{cite web|url=https://github.com/IBM/plex/releases/tag/v1.3.0|title=Arabic support|publisher=GitHub|date=13 March 2019|accessdate=13 March 2019}}
7. ^{{cite web|url=https://github.com/IBM/type/issues/68|title=IBM Plex editable sources? #68|publisher=GitHub|accessdate=14 January 2018}}
8. ^{{cite web|url=https://www.ibm.com/plex/specs/|title=IBM Plex – 05 Specs|publisher=IBM|accessdate=14 August 2018}}
9. ^{{cite web|url=https://github.com/IBM/type/issues/122|title=Suggestion: ≔ and ≝ #122|publisher=GitHub|accessdate=23 January 2018}}
10. ^{{cite web|url=https://github.com/IBM/plex/issues/176|title=APL Glyphs Absent #176|publisher=GitHub|accessdate=23 January 2018}}
11. ^{{cite web|url=https://www.fontsquirrel.com/fonts/ibm-plex|title=IBM Plex|publisher=Font Squirrel|accessdate=11 January 2018}}
12. ^{{cite web|url=https://github.com/IBM/plex/blob/master/LICENSE.txt|title=LICENSE.txt|publisher=GitHub |accessdate=23 August 2018}}
13. ^{{cite web|url=https://github.com/IBM/plex/issues/190|title=Add Apache license into all font folders (This will live as a dual license with the OFL) #190|publisher=GitHub|accessdate=9 August 2018}}
14. ^{{cite web|url=https://github.com/IBM/plex/issues/98|title=Please allow building from source with a free toolchain #98|publisher=GitHub|accessdate=22 June 2018}}
15. ^{{cite web|url=https://github.com/IBM/plex/blob/master/README.md|title=README - Building the fonts from source|publisher=GitHub |accessdate=22 June 2018}}
16. ^{{cite web|url=https://trademarks.ipo.gov.uk/ipo-tmcase/page/Results/1/UK00003255123 |title=Trade mark number UK00003255123 |publisher=Intellectual Property Office (United Kingdom) |accessdate=22 June 2018}}
17. ^{{cite web|url=http://tmsearch.uspto.gov/bin/showfield?f=doc&state=4801:pwk7oy.2.1|title=IBM Plex – Trademark Electronic Search System|publisher=United States Patent and Trademark Office|accessdate=21 August 2018}}

External links

  • [https://github.com/IBM/plex/ GitHub page]
  • [https://www.ibm.com/plex/ Official site]
  • [https://fonts.google.com/specimen/IBM+Plex+Sans IBM Plex Sans] on Google Fonts
  • [https://fonts.google.com/specimen/IBM+Plex+Sans+Condensed IBM Plex Sans Condensed] on Google Fonts
  • [https://fonts.google.com/specimen/IBM+Plex+Mono IBM Plex Mono] on Google Fonts
  • [https://fonts.google.com/specimen/IBM+Plex+Serif IBM Plex Serif] on Google Fonts
{{IBM}}{{Free and open-source typography}}{{Monospaced fonts}}

8 : IBM|Typefaces and fonts introduced in 2017|Unified serif and sans-serif typeface families|Corporate typefaces|Open-source typefaces|Transitional serif typefaces|Grotesque sans-serif typefaces|Monospaced typefaces
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