A "compact" overview does not need 17 different currency symbols, mostly
inherited from the <http://kermitproject.org/utf8.html> sampler line.
Test only internationally significant valuta, guided by the top 28 listed
at <https://en.wikipedia.org/wiki/Currency?oldid=
942055810#cite_ref-10>,
keeping recent additions (₹, ₽) and adding a full-width character (元).
║ _ABCDEFGHIJKLMNOPQRSTUVWXYZ ÅĀČẾƏØṆⱣÞß ΑΒΓΔΩὮ АБВГДЯѢЌ ԱԲԳ ႠႡႢჇ אבגױ ║
║ @abcdefghijklmnopqrstuvwxyz åāčếəøṇᵽþſ αβγδωὦ абвгдяѣќ աբգ აბგჷ ابجݰ ║
║ -0123456789 (/)[\]{|} ^`"'~ «“’”» ,;:.…!¿?‽ •&#§¶†©%‰ −±+*×÷ <>=≠∀∧∅ ║
- ║ ��¤¢₥$€£¥₹₽ ฿₫֏₭₺₦₩₪ ✂℻☆♥⚐☺☯☹ ☉♀♁♂♉ ✔✘ ○☓□△ ␣⌫⌥⌘↵␀ ¯₁½²√¬∈∞ ↗┌╁╖░█∎ � ║
+ ║ ��· ¤¢$€£¥元 ฿₺₽₹₩₪ ✂℻☆♥⚐☺☯☹ ☉♀♁♂♉ ✔✘ ○☓□△ ␣⌫⌥⌘↵␀ ₁½²√¬∈∞ ↗┌╁╖░█∎ � ║
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