id by Unicode chars
https://www.w3schools.com/charsets/ref_utf_basic_latin.asp
Boxes:⯓:11219:2BD3
Box Alphabet:🄰:127280:1F130
Circle Alphabet:①:9312:2460
Cross:┽:9533:253D
Plus:🞡:128929:1F7A1
Color Ball:🟠:128992:1F7E0
Block:▖:9622:2596
Dot Block:⠫:10283:282B
Arrows
日本語スペース
grapheme clusters
Checked on Chorme,FF,Safari,Opear(Mobile),Sumsang(MObile)