This was created for the Mac OS X operating system. Unlike the old operating environment versions, the font is stored in the thread of a data file instead of in resource threads. It’s been used as a container for TrueType fonts since 2009 after the release of Mac OS X 10.6, and is gradually replacing the TrueType Collection.
This is a format for storing raster images, developed by the Ulead Company. It can include several edible layers, like in a Photoshop document. The image raster format was transferred to the TrueType font system and allows for the presentation of graphical information in a text format.