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AFAICT, this is the only missing mapping left: F9FE => opera-hk: U+FFED ￭ firefox: U+2593 ▓ chrome: U+2593 ▓ firefox-hk: U+2593 ▓ opera: U+2593 ▓ chrome-hk: U+FFED ￭ internetexplorer: U+2593 ▓ hkscs-2008: <U+FFED> ￭ Some pages using it: http://queenshop.com.tw/abc/news002.htm http://www.30888.com.tw/maintain/maintain_d003d001.php http://www.30888.com.tw/maintain/maintain_d003e002a.php http://www.banksinopac.com.tw/bsp/eng/csr/launder_q.asp http://www.cdns.com.tw/20120129/news/ http://www.cite.com.tw/act/box_cite/1MA014/ http://www.photofast.com.tw/POselect.asp?pid=photopuzzles&class=a http://www.photofast.com.tw/calendar_default.asp http://www.photofast.com.tw/pogoods.asp?ptype=pillow http://www.uforadio.com.tw/modules/newbb/viewforum.php?forum=72 In particular banksinopac.com.tw would suggest U+25A0 BLACK SQUARE. I suggest using U+FFED in order to not contradict HKSCS-2008, and it also decomposes to U+25A0 so should be rendered the same given proper font support. (Doesn't render correctly on Ubuntu, but http://www.fileformat.info/info/unicode/char/ffed/fontsupport.htm looks good for Windows.
Fixed: http://dvcs.w3.org/hg/encoding/rev/8daa7b68676b