How font systems differ in shaping glyphs with variation selectors supplement ligatured
In order to deal with CJKV variation characters, additional variation selectors were introduced into the Supplementary Special-purpose Plane of the Unicode. The newly introduced selectors are named variation selector-17 (U+E0100) to variation selector-256 (U+E01EF).
Despite having been introduced early in Unicode 4.0 which was published in 2004 …