Emoji Fonts Use Undocumented Features
As a result, people are looking for ways to create a TrueType font containing Emoji bitmaps. This font will be embedded in iOS and OS X native apps. Conceivably, it could also be used as a web font.
Using Emoji as a part of a product’s branding is not dissimilar to Apple’s own use of Myriad Pro in marketing materials and San Francisco on devices. A font plays a huge role in a customer’s perception of a product.
The problem is that there is no documentation on how to generate an Emoji font that can be used with iOS and OS X.
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Apple’s tools for working with fonts on OS X have not been updated since October 10th, 2011. They do not support Emoji. If Apple has a internal tool for constructing these fonts, it would be very helpful to third-party developers.
Update (2016-03-11): See these tweets from Rosyna Keller.
