> Some early emoji sets had emojis of varying widths and KDDI even had > respective “blank” emojis: > They were even included in L2/08080r-emoji-proposal as FULL BLANK SPACE, A > HALF BLANK SPACE and A QUARTER BLANK SPACE (sic!).
PS: Asmus Freytag suggested to unify them with U+3000, U+0020 and one out of U+200x, whereas Markus Scherer suggested U+2003, U+2002 and U+2005, instead. <https://www.unicode.org/L2/L2008/08106-emoji-feedback.html> I think this is were their progress into Unicode ended.
