Invisible VS228 variation selector with no visible shape; it follows a character to pick a specific glyph variant, mainly for ideographic variation sequences in CJK text.
U+E01D2VARIATION SELECTOR-227U+E01D4VARIATION SELECTOR-229U+E01D1VARIATION SELECTOR-226U+E01D5VARIATION SELECTOR-230U+E01D0VARIATION SELECTOR-225U+E01D6VARIATION SELECTOR-231U+E01CFVARIATION SELECTOR-224U+E01D7VARIATION SELECTOR-232U+E01CEVARIATION SELECTOR-223U+E01D8VARIATION SELECTOR-233U+E01CDVARIATION SELECTOR-222U+E01D9VARIATION SELECTOR-234240 characters in the Variation Selectors Supplement Unicode block, from number 212.
U+E01D3VARIATION SELECTOR-228U+E01D4VARIATION SELECTOR-229U+E01D5VARIATION SELECTOR-230U+E01D6VARIATION SELECTOR-231U+E01D7VARIATION SELECTOR-232U+E01D8VARIATION SELECTOR-233U+E01D9VARIATION SELECTOR-234U+E01DAVARIATION SELECTOR-235U+E01DBVARIATION SELECTOR-236U+E01DCVARIATION SELECTOR-237U+E01DDVARIATION SELECTOR-238U+E01DEVARIATION SELECTOR-239U+E01DFVARIATION SELECTOR-240U+E01E0VARIATION SELECTOR-241U+E01E1VARIATION SELECTOR-242U+E01E2VARIATION SELECTOR-243U+E01E3VARIATION SELECTOR-244U+E01E4VARIATION SELECTOR-245U+E01E5VARIATION SELECTOR-246U+E01E6VARIATION SELECTOR-247U+E01E7VARIATION SELECTOR-248U+E01E8VARIATION SELECTOR-249U+E01E9VARIATION SELECTOR-250U+E01EAVARIATION SELECTOR-251U+E01EBVARIATION SELECTOR-252U+E01ECVARIATION SELECTOR-253U+E01EDVARIATION SELECTOR-254U+E01EEVARIATION SELECTOR-255U+E01EFVARIATION SELECTOR-256