What means
From the European character set of Sharp MZ computers.
The set held outlined digits 0–9 and capitals A–Z in a separate character range. From the mid-1970s to the mid-1980s, they appeared in logos and screen artwork as display lettering.
Why does the outlined 5 become a plain 5?
NFKC compatibility normalization can reduce it to 5.
NFKC is a Unicode text-cleanup process that folds some compatibility styles into basic characters. Here, software can keep the value while removing the outline.
Don't confuse it with
4Questions people ask
1Why does show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
How to type
𜳵\1CCF5Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.
