Implementation of emojis

Last updated

The implementation of emojis on different platforms took place across a three-decade period, starting in the 1990s. Today, the exact appearance of emoji is not prescribed but can vary between fonts and platforms, much like different typefaces.

Contents

For example, the Apple Color Emoji typeface is proprietary to Apple, and can only be used on Apple devices (without additional hacking). [1] Different computing companies have developed their own fonts to display emoji, some of which have been open-sourced to permit their reuse. [2] [3] Both color and monochrome emoji typefaces exist, as well as at least one animated design. [4]

Technical aspects

JIS, Shift JIS and Private Use Area encodings

Various, often incompatible, character encoding schemes were developed by the different mobile providers in Japan for their own emoji sets. When transmitted in Shift JIS on NTT DoCoMo, emoji symbols are specified as a two-byte sequence in the range F89F through F9FC (as expressed in hexadecimal). Emoji pictograms on au by KDDI are specified using the <img> tag,[ citation needed ] encoded in Shift JIS between F340 and F7FC, [5] [6] or encoded in extended JIS X 0208 between 7521 and 7B73. [6] SoftBank Mobile emoji support colors and animation, and use different formats on 2G versus 3G: [7] in the 2G format, they are encoded in sequences using the Escape and Shift In control characters, whereas in the 3G format, they are encoded in Shift JIS between F741 and FBDE. [5] [6] The SoftBank 3G format collides with the overlapping Shift JIS ranges used by the other vendors: for example, the Shift JIS representation F797 is used for a convenience store (🏪) by SoftBank, but for a wristwatch (⌚️) by KDDI. [5] [6]

DoCoMo [6] and SoftBank [8] also developed their own schemes for representing their emoji sets in extended JIS X 0208 between 7522 and 7E38. These often matched the encodings of similar KDDI emoji where they existed: for example, the camera (📷) was represented in Shift JIS as F8E2 by DoCoMo, F6EE by KDDI, and F948 by SoftBank, but as 7670 in JIS by all three. [6] [8]

All three vendors and Google (for Gmail) each developed at least one scheme for encoding their emoji in the Unicode Private Use Area (with au developing two); [7] DoCoMo, for example, used the range U+E63E through U+E757. [6] Mostly, these five schemes do not overlap, but au's primary private use scheme partly collides with SoftBank's. [7] Versions of iOS prior to 5.1 encoded emoji in the SoftBank private use area scheme, with later versions using standard Unicode. [9] [10]

Supplementary Multilingual Plane support

Most, but not all, emoji are included in the Supplementary Multilingual Plane (SMP) of Unicode. The SMP also includes, for example, ancient scripts such as Cuneiform or Egyptian hieroglyphs, some modern scripts such as Adlam or Osage, and special-use characters such as Musical Symbols or Mathematical Alphanumeric Symbols. [11]

Unicode was originally designed as a 16-bit encoding, which could be represented in a pure 16-bit form known as UCS-2. This corresponds to the Basic Multilingual Plane (BMP) of the Universal Coded Character Set. In Unicode 2.0, this was expanded to 17 planes (numbered 0 through 16, where the BMP is plane 0), and the first non-BMP characters were allocated in Unicode 3.1. [12] UCS-2 is now obsolete and deprecated in favour of UTF-16, a variable-width encoding which follows UCS-2 for the BMP, but extends it with four-byte codes representing non-BMP characters. Non-BMP characters (in the SMP and in other supplementary planes, such as additional hanzi in the Supplementary Ideographic Plane, including some of the Cantonese characters from HKSCS) now number in the tens of thousands. [12]

Some systems introduced prior to the advent of Unicode emoji were only designed to support characters in the BMP, on the assumption that non-BMP characters would rarely be encountered, [13] although failure to properly handle characters outside of the BMP precludes Unicode compliance. [12] For example, earlier versions of MySQL supported UCS-2 and a variant of UTF-8 excluding four-byte codes, thus not handling non-BMP characters correctly. Support for UTF-32 and full support for UTF-16 and UTF-8 (under the name utf8mb4) was added in version 5.5, [14] with utf8 retained as an alias for the up-to-three-byte version, although this is intended to be changed in the future. [15]

The introduction of Unicode emoji created an incentive for vendors to improve their support for non-BMP characters. [13] The Unicode Consortium notes that "[b]ecause of the demand for emoji, many implementations have upgraded their Unicode support substantially." [16]

Font format support

Any operating system that supports adding additional fonts to the system can add an emoji-supporting font. However, inclusion of colorful emoji in existing font formats requires dedicated support for color glyphs. Not all operating systems have support for color fonts, so in these cases emoji might have to be rendered as black-and-white line art or not at all. There are four different formats used for multi-color glyphs in an SFNT font. [17] [18] OpenType version 1.8 standardizes all four.

The COLR format was introduced by Microsoft, with Windows 8.1. [17] The CBDT format was introduced by Google and is supported on Android, while the competing sbix format was introduced by Apple, and is supported on macOS and iOS. SVG-in-OpenType was designed by Mozilla and Adobe as an industry standard. [18]

Some support for SVG-in-OpenType support has been added to newer updates of Windows 10, and to newer versions of iOS and macOS. [18] DirectWrite has supported all four since Windows 10 Anniversary Update; however, Windows only supports a subset of SVG-in-OpenType. [17] On the web, SVG-in-OpenType is supported by recent versions of Firefox, Safari and Microsoft Edge, but not by Google Chrome; Edge and Safari additionally support sbix, while Edge and Chrome support CBDT and all four support COLR. [18]

This means that color fonts may need to be supplied in several formats to be usable on multiple operating systems, or in multiple applications.

Internationalized domain names

A limited number of top-level domains allow registration of domain names containing emoji characters. Emoji-containing subdomains are also possible under any top-level domain.

Implementation by different platforms

Google (Android and ChromeOS)

Google's Noto fonts project includes the Noto Color Emoji font, which supplies color glyphs for emoji characters. [25] ChromeOS, through its inclusion of the Noto fonts, supports the emoji set introduced through Unicode 6.2. As of ChromeOS 41, Noto Color Emoji is the default font for most emoji.

Android devices support emoji differently depending on the operating system version. Google added native emoji support to Android in July 2013 with Android 4.3, [26] and to the Google Keyboard in November 2013 for devices running Android 4.4 and later. [27] Android 7.0 Nougat added Unicode 9 emoji, skin tone modifiers, and a redesign of many existing emoji. [28]

Emoji are also supported by the Google Hangouts application (independent of the keyboard in use), in both Hangouts and SMS modes. [29] Several third-party messaging and keyboard applications (such as IQQI Keyboard) for Android devices [30] provide plugins that allow the use of emoji. With Android 8 (Oreo), Google added a compatibility library that, if included by app developers, makes the latest Noto emoji available on any platform since Android 4.3. [31]

Stock Android systems include the Noto glyphs for emoji characters, although individual social media apps may use their own glyphs instead. [32] However, mobile phone vendors HTC and LG deployed variants of NotoColorEmoji.ttf with custom glyphs prior to 2017, [33] and Samsung still does. [34] Some Japanese mobile carriers used to equip branded Android devices with emoji glyphs that were closer to the original ones, but apparently have stopped updating these circa 2015.[ clarification needed ]

Apple

Apple first introduced emoji to their desktop operating system with the release of OS X 10.7 Lion, in 2011. Users can view emoji characters sent through email and messaging applications, which are commonly shared by mobile users, as well as any other application. Users can create emoji symbols using the "Characters" special input panel from almost any native application by selecting the "Edit" menu and pulling down to "Special Characters", or by the key combination ⌘ Command+⌥ Option+T. Users can also create these symbols by switching the keyboard to Unicode, holding ⌥ Option and typing the Unicode hex input. For example, holding down ⌥ Option+2+6+3+A would create ☺. The desktop OS uses the Apple Color Emoji font that was introduced earlier in iOS. This provides users with full color pictographs. [35]

The emoji keyboard was first available in Japan with the release of iPhone OS version 2.2 in 2008. [36] The emoji keyboard was not officially made available outside of Japan until iOS version 5.0. [37] From iPhone OS 2.2 through to iOS 4.3.5 (2011), those outside Japan could access the keyboard but had to use a third party app to enable it. The first of such apps was developed by Josh Gare; emoji beginning to be embraced by popular culture outside Japan has been attributed to these apps. [38] [39] iOS was updated to support Fitzpatrick skin-tone modifiers with version 8.3. [40]

OS X 10.9 Mavericks introduced a dedicated emoji input palette in most text input boxes within the Mac's existing Character Viewer using the key combination ⌘ Command+Ctrl+Space. [41] Optionally, the Fn key alone can be specified by the user in the keyboard preferences menu to bring up the Character Viewer. Since macOS Big Sur, the key is also labeled as 🌐 (globe) for consistency across macOS and iOS, which uses the globe key as a function key to switch to the emoji and other chosen international keyboard layouts.

Apple has revealed that the "face with tears of joy" is the most popular emoji among English speaking Americans. On second place is the "heart" emoji followed by the "Loudly Crying Face". [42] [43]

On July 17, 2018, for the World Emoji Day, Apple announced that it will be adding 70 more emoji in its 2018 iOS update, including the long-awaited, red hair, white hair, curly hair and bald emoji. [44] [45]

On September 12, 2017, Apple announced that the Messages app on the iPhones with Face ID would get "Animoji", which are versions of standard emoji that are custom-animated with the use of facial motion capture to reflect the sender's expressions. These Animoji can also utilize lip sync to appear to speak audio messages recorded by the sender. Apple had created 3D models of all standard emoji prior to its late-2016 OS updates from which the static default 2D graphics had been rendered. A select set of these models are being reused for creating still images and short animations dynamically.

With the release of iOS 12, Apple introduced "Memoji" that allows the use of an avatar that a user can use to personalize messages; this feature does not require Face ID. [46]

Mozilla (Firefox and Firefox OS)

As part of the now-discontinued Firefox OS project, Mozilla developed an emoji font named FxEmojis. [47] [48]

Mozilla also packages a version of Twitter's Twemoji font converted to a COLR/CPAL layered format font, named "Twemoji Mozilla". [49] Older versions[ which? ] of the latter Mozilla project instead packaged the EmojiOne font, as "EmojiOne Mozilla". [50] Since Firefox 50, emojis are rendered by the browser when the underlying platform lacks native support. [51]

Linux

Ubuntu 18.04 and Fedora 28 support color emoji by default, using Noto Color Emoji. [52] [53] Some Linux distributions require the installation of extra fonts. [54] Color emoji are supported by FreeType and Cairo. [55]

Microsoft Windows

An update for Windows 7 and Windows Server 2008 R2 brought a subset of the monochrome Unicode set to those operating systems as part of the Segoe UI Symbol font. [56] As of Windows 8.1 Preview, the Segoe UI Emoji font is included, which supplies full-color pictographs. The plain Segoe UI font lacks emoji characters, whereas Segoe UI Symbol and Segoe UI Emoji include them.

Emoji characters are accessed through the onscreen keyboard's 😀 key, or through the physical keyboard shortcut ⊞ Win+..

Differently from macOS and iOS, color glyphs are only supplied when the application supports Microsoft's DirectWrite API, and Segoe UI Emoji is explicitly declared, otherwise monochrome glyphs appear. [57] Microsoft's COLR/CPAL format for multi-color fonts such as Segoe UI Emoji is supported by the current versions of several web browsers on Windows (including Firefox, Google Chrome, Internet Explorer and Microsoft Edge), but not by many graphics applications. [18]

Windows 10 Anniversary Update added Unicode 9 emoji. [58]

In August 2022, Microsoft open sourced more than 1,500 of its 3D emoji to let creators remix and customize them. The library is available on Figma and GitHub. [59]

Social media platforms

Facebook and Twitter replace all Unicode emoji used on their websites with their own custom graphics.

Prior to October 2017, Facebook had different sets for the main site and for its Messenger service, where only the former provides complete coverage. Messenger now uses Apple emoji on iOS, and the main Facebook set elsewhere. [60] Facebook reactions are only partially compatible with standard emoji.[ citation needed ]

Twitter has released Twemoji, which is their emoji graphics together with a JavaScript library to handle them, under the Creative Commons CC-BY 4.0 license and the MIT open-source license, respectively. [61] Despite this, the Android and iOS Twitter apps use the emoji graphics that are native to the platform they are running on (Apple and Google), instead of the Twemoji graphics.

Other emoji font vendors

EmojiOne 2.2 logo on the ticket emoji Emojione 1F3AB.svg
EmojiOne 2.2 logo on the ticket emoji

EmojiOne version 2.2, an open-source font available under a free content license, supports the full emoji set in color through Unicode Emoji 3.0, i.e. Unicode 9.0. Newer versions of EmojiOne, since renamed JoyPixels, [62] support more recent Unicode Emoji versions, and use a stricter license that disallows the redistribution of vector images, while version 2.x is "no longer supported or distributed". [63] EmojiTwo, an open-source fork of EmojiOne 2.2, aims to add all emoji from 2017 and later.

The font Symbola contains all emoji through version 10.0 as normal monochrome glyphs. Through version 10, Symbola was made available without a license nor any restrictions on use; beginning with version 11 in 2018, Symbola has been copyrighted with a ban on commercial use and derivative works. Other typefaces including a significant number of emoji characters include Noto Emoji, Adobe Source Emoji, and Quivira.

Footnotes

  1. Notes on the format of the gmojiraw.txt data file from Google/AOSP: file is mostly tab-separated, except that columns for a given vendor after a non-empty substitute string column are skipped altogether on a per-line basis, so the columns of two given lines do not necessarily line up. First four columns give the Google private use code points (in hexadecimal), the UTF-16 and UTF-8 thereof, and a Google-assigned name, which are followed by columns for au, then columns for DoCoMo, then columns for SoftBank. Columns for a given vendor consist of a substitute string followed by (IFF the substitute string is empty) a decimal ordinal, a hexadecimal Shift JIS code in the region beyond JIS X 0208, a hexadecimal private-use Unicode code point, a hexadecimal 7-bit JIS code and (for au only) an alternative Shift JIS code corresponding to the 7-bit JIS code. Characters which exist in a given vendor's Shift JIS scheme but not its 7-bit JIS scheme have the 7-bit code for that vendor listed as 222E (i.e. the geta mark in JIS X 0208). Some vendor mappings are approximations or to sequences (delimited within fields with +).

Related Research Articles

TrueType is an outline font standard developed by Apple in the late 1980s as a competitor to Adobe's Type 1 fonts used in PostScript. It has become the most common format for fonts on the classic Mac OS, macOS, and Microsoft Windows operating systems.

<span class="mw-page-title-main">Unicode</span> Character encoding standard

Unicode, formally The Unicode Standard, is a text encoding standard maintained by the Unicode Consortium designed to support the use of text in all of the world's writing systems that can be digitized. Version 15.1 of the standard defines 149813 characters and 161 scripts used in various ordinary, literary, academic, and technical contexts.

<span class="mw-page-title-main">UTF-16</span> Variable-width encoding of Unicode, using one or two 16-bit code units

UTF-16 (16-bit Unicode Transformation Format) is a character encoding capable of encoding all 1,112,064 valid code points of Unicode (in fact this number of code points is dictated by the design of UTF-16). The encoding is variable-length, as code points are encoded with one or two 16-bit code units. UTF-16 arose from an earlier obsolete fixed-width 16-bit encoding now known as "UCS-2" (for 2-byte Universal Character Set), once it became clear that more than 216 (65,536) code points were needed, including most emoji and important CJK characters such as for personal and place names.

OpenType is a format for scalable computer fonts. Derived from TrueType, it retains TrueType's basic structure but adds many intricate data structures for describing typographic behavior. OpenType is a registered trademark of Microsoft Corporation.

<span class="mw-page-title-main">GB 18030</span> Official Chinese character encoding

GB 18030 is a Chinese government standard, described as Information Technology — Chinese coded character set and defines the required language and character support necessary for software in China. GB18030 is the registered Internet name for the official character set of the People's Republic of China (PRC) superseding GB2312. As a Unicode Transformation Format, GB18030 supports both simplified and traditional Chinese characters. It is also compatible with legacy encodings including GB/T 2312, CP936, and GBK 1.0.

An emoji is a pictogram, logogram, ideogram, or smiley embedded in text and used in electronic messages and web pages. The primary function of modern emoji is to fill in emotional cues otherwise missing from typed conversation as well as to replace words as part of a logographic system. Emoji exist in various genres, including facial expressions, expressions, activity, food and drinks, celebrations, flags, objects, symbols, places, types of weather, animals and nature.

<span class="mw-page-title-main">Japanese postal mark</span> Character representing the service mark of the postal operator in Japan

is the service mark of Japan Post and its successor, Japan Post Holdings, the postal operator in Japan. It is also used as a Japanese postal code mark since the introduction of the latter in 1968. Historically, it was used by the Ministry of Communications, which operated the postal service. The mark is a stylized katakana syllable te (テ), from the word teishin. The mark was introduced on February 8, 1887.

Segoe is a typeface, or family of fonts, that is best known for its use by Microsoft. The company uses Segoe in its online and printed marketing materials, including recent logos for a number of products. Additionally, the Segoe UI font sub-family is used by numerous Microsoft applications, and may be installed by applications. It was adopted as Microsoft's default operating system font, and is also used on Outlook.com, Microsoft's web-based email service. On August 23, 2012, Microsoft unveiled its new corporate logo typeset in Segoe, replacing the logo it had used for the previous 25 years.

A fallback font is a reserve typeface containing symbols for as many Unicode characters as possible. When a display system encounters a character that is not part of the repertoire of any of the other available fonts, a symbol from a fallback font is used instead. Typically, a fallback font will contain symbols representative of the various types of Unicode characters.

A Unicode font is a computer font that maps glyphs to code points defined in the Unicode Standard. The vast majority of modern computer fonts use Unicode mappings, even those fonts which only include glyphs for a single writing system, or even only support the basic Latin alphabet. Fonts which support a wide range of Unicode scripts and Unicode symbols are sometimes referred to as "pan-Unicode fonts", although as the maximum number of glyphs that can be defined in a TrueType font is restricted to 65,535, it is not possible for a single font to provide individual glyphs for all defined Unicode characters. This article lists some widely used Unicode fonts that support a comparatively large number and broad range of Unicode characters.

Geometric Shapes is a Unicode block of 96 symbols at code point range U+25A0–25FF.

<span class="mw-page-title-main">Unicode input</span> Input characters using their Unicode code points

Unicode input is the insertion of a specific Unicode character on a computer by a user; it is a common way to input characters not directly supported by a physical keyboard. Unicode characters can be produced either by selecting them from a display or by typing a certain sequence of keys on a physical keyboard. In addition, a character produced by one of these methods in one web page or document can be copied into another. In contrast to ASCII's 96 element character set, Unicode encodes hundreds of thousands of graphemes (characters) from almost all of the world's written languages and many other signs and symbols besides.

<span class="mw-page-title-main">Web typography</span> Publishing considerations for the Web

Web typography, like typography generally, is the design of pages – their layout and typeface choices. Unlike traditional print-based typography, pages intended for display on the World Wide Web have additional technical challenges and – given its ability to change the presentation dynamically – additional opportunities. Early web page designs were very simple due to technology limitations; modern designs use Cascading Style Sheets (CSS), JavaScript and other techniques to deliver the typographer's and the client's vision.

The Universal Coded Character Set is a standard set of characters defined by the international standard ISO/IEC 10646, Information technology — Universal Coded Character Set (UCS), which is the basis of many character encodings, improving as characters from previously unrepresented typing systems are added.

Apple Color Emoji is a color typeface used on Apple platforms such as iOS and macOS to display Emoji characters.

<span class="mw-page-title-main">Noto fonts</span> Multilingual font family from Google

Noto is a font family comprising over 100 individual computer fonts, which are together designed to cover all the scripts encoded in the Unicode standard. As of October 2016, Noto fonts cover all 93 scripts defined in Unicode version 6.1, although fewer than 30,000 of the nearly 75,000 CJK unified ideographs in version 6.0 are covered. In total, Noto fonts cover over 77,000 characters, which is around half of the 149,186 characters defined in Unicode 15.0.

This is a technical feature comparison of font editors.

<span class="mw-page-title-main">Source Han Serif</span> Open-source serif CJK typeface

Source Han Serif is a serif Song/Ming typeface created by Adobe and Google.

The Pistol emoji (🔫) is an emoji usually displayed as a green or orange toy gun or water gun, but historically was displayed as an actual handgun on most older systems. In 2016, Apple replaced its realistic revolver design with a water gun emoji, resulting in other companies similarly changing their renditions over the following years.

References

  1. "[MOD] Apple Color Emoji system-wide for KitKat+ (updated with unicorns)". XDA Developers. 10 December 2013. Retrieved January 15, 2015.
  2. Davidson, Mike. "Open sourcing Twitter emoji for everyone". Twitter developer blog. Twitter. Retrieved January 15, 2015.
  3. "Emoji One: Open Source Emoji". Emoji One. Archived from the original on August 27, 2017. Retrieved January 15, 2015.
  4. El Khoury, Rita (December 11, 2014). "Woohoo! Animated Emoji Easter Eggs Overload The Latest Hangouts With Their Cuteness, Hehehehe". Android Police. Retrieved January 15, 2015.
  5. 1 2 3 Unicode Consortium. "Emoji Sources". Unicode Character Database.
  6. 1 2 3 4 5 6 7 Scherer, Markus; Davis, Mark; Momoi, Kat; Tong, Darick; Kida, Yasuo; Edberg, Peter. "Emoji Symbols: Background Data—Background data for Proposal for Encoding Emoji Symbols" (PDF). UTC L2/10-132.
  7. 1 2 3 Kawasaki, Yusuke (2010). Emoji encodings and cross-mapping tables in pure Perl.
  8. 1 2 Android Open Source Project (2009). "GMoji Raw". Skia Emoji. [lower-alpha 1]
  9. "Apple iOS 5.1". Emojipedia .
  10. "Apple iPhone OS 2.2". Emojipedia .
  11. Everson, Michael; McGowan, Rick; Whistler, Ken; Umamaheswaran, V.S. (2020-07-22). "Roadmap to the SMP". Revision 13.0.3.
  12. 1 2 3 Lunde, Ken (2009). CJKV Information Processing (2nd ed.). Sebastopol CA.: O'Reilly Media. p. 200. ISBN   978-0-596-51447-1.
  13. 1 2 Chupov, Sergey (2019-06-06). "How We Store Emojis in Your Database, or Why We Got Rid of the Extended String Data Type". Backendless Corporation.
  14. Bushuev, Leonid. "4-bytes UTF-8 characters cause "Incorrect string value" error in MySQL". TeamCity YouTrack.
  15. "10.10.1 Unicode Character Sets". MySQL 8.0 Documentation. Archived from the original on 2020-08-10.
  16. "Don't emoji detract from the other work of the consortium?". Frequently Asked Questions: Emoji and Pictographs. Unicode Consortium.
  17. 1 2 3 4 5 Microsoft (2018-05-31). "Color Fonts". Microsoft Docs .
  18. 1 2 3 4 5 6 7 8 "What's inside color fonts?". Color Fonts - Get ready for the revolution!.
  19. 1 2 Microsoft (31 May 2024). "CBDT — Color Bitmap Data Table". OpenType spec.
  20. 1 2 Microsoft (31 May 2024). "COLR — Color Table". OpenType spec.
  21. 1 2 Microsoft (29 May 2024). "CPAL — Color Palette Table". OpenType spec.
  22. Microsoft (30 May 2024). "sbix — Standard Bitmap Graphics Table". OpenType spec.
  23. Apple. "The 'sbix' table". TrueType Reference Manual.
  24. 1 2 Microsoft (30 May 2024). "SVG — The SVG (Scalable Vector Graphics) table". OpenType spec.
  25. "Noto Color Emoji". Google Noto Fonts.
  26. Cabebe, Jaymar. "Google Android 4.3 is here, and it tastes like Jelly Bean". CNET.
  27. "Google adds SMS to Hangouts Android app, Emoji to KitKat keyboard". November 7, 2013. Retrieved April 17, 2014.
  28. "Android 7.0 Nougat Emoji Changelog". August 22, 2016. Retrieved August 23, 2016.
  29. "Hangouts – Google Play" . Retrieved April 17, 2014.
  30. "emoji – Google Play". Market.android.com. Retrieved November 9, 2012.
  31. Ion, Florence (July 24, 2017). "Fewer Empty Boxes for Android Users". Emojipedia.
  32. Emojipedia. "Google Emoji List".
  33. Emojipedia. "LG Emoji List".
  34. Emojipedia. "Samsung Emoji List".
  35. "Access and Use Emoji in Mac OS X". Osxdaily.com. August 20, 2011. Retrieved January 18, 2014.
  36. "Apple releases iPhone Software v2.2". AppleInsider. Archived from the original on March 1, 2017. Retrieved February 28, 2017.
  37. "Standard Emoji keyboard arrives to iOS 5, here's how to enable it". 9to5Mac. June 8, 2011. Retrieved February 28, 2017.
  38. "Young App Creators Earning Thousands A Day". Sky News. Retrieved February 28, 2017.
  39. "The man who brought us the Emoji". O2. October 16, 2015. Archived from the original on September 6, 2018. Retrieved February 28, 2017.
  40. Underhill, Allison (April 10, 2015). "The 'Diversity' of Emojis". The Huffington Post. Retrieved December 15, 2015.
  41. Cipriani, Jason (October 23, 2013). "How to access emoji in OS X 10.9 Mavericks". CNET. Retrieved January 18, 2014.
  42. "Apple Says 'Face With Tears of Joy' is Most Popular Emoji in United States Among English Speakers" . Retrieved November 3, 2017.
  43. "😃 Emoji People and Smileys Meanings". emojipedia.org. Retrieved November 3, 2017.
  44. Kelly, Heather. "Redheads, lobsters and cupcakes: Apple shows off new iOS emojis". CNNMoney. Retrieved 2018-07-17.
  45. "Apple emoji will soon include people with curly hair, white hair and superpowers". www.msn.com. Retrieved 2018-07-17.
  46. "How to Create and Use Memoji and Animoji on an iPhone". How to Geek. 2020-01-18. Retrieved 2020-03-20.
  47. Mozilla (June 15, 2021). "FxEmojis — a friendly emoji set from Mozilla". GitHub .
  48. Emojipedia. "Mozilla Emoji List — Emojis for Firefox OS". Emojipedia.
  49. Mozilla (July 8, 2021). "twemoji-colr: Twemoji font in COLR/CPAL layered format". GitHub .
  50. Mozilla. "emojione-colr: Project to create a COLR/CPAL-based color OpenType font from the EmojiOne collection of emoji images". GitHub . v0.2.2.
  51. "Firefox 50.0, See All New Features, Updates and Fixes".
  52. "Ubuntu 18.04 Will Support Color Emoji – OMG! Ubuntu!". OMG! Ubuntu!. 2017-11-08. Retrieved 2018-06-09.
  53. "What's New in Fedora 28 Workstation – Fedora Magazine". Fedora Magazine. 2018-05-01. Retrieved 2018-06-09.
  54. Petherbridge, Noah (April 4, 2013). "Make Emoji Work in Linux". Kistle blog. Retrieved October 7, 2014.
  55. LEMBERG, Werner. "[ft-announce] FreeType now supports color emojis" . Retrieved April 13, 2018.
  56. "An update for the Segoe UI symbol font in Windows 7 and in Windows Server 2008 R2 is available". Microsoft Support.
  57. "Script and Font Support in Windows". Microsoft. Archived from the original on September 23, 2017. Retrieved August 23, 2017.
  58. "Windows 10 Anniversary Update Adds Over 52,000 New Emojis, Including NinjaCat". Windows Central. August 2, 2016. Retrieved August 23, 2017.
  59. Warren, Tom (10 August 2022). "Microsoft open sources its 3D emoji to let creators remix and customize them". The Verge . Retrieved 14 August 2022.
  60. Burge, Jeremy (2 October 2017). "Facebook Discontinues Messenger Emojis". Emojipedia.
  61. "GitHub – twitter/twemoji: Twitter Emoji for Everyone". GitHub . July 20, 2017. Retrieved September 24, 2017.
  62. Neufeld, Sarah (2019). "EmojiOne is Now JoyPixels".
  63. JoyPixels (July 8, 2021). "emoji-toolkit". GitHub .