Nicely done! Glad to see the explicit shout-out to https://github.com/kroitor/asciichart

FYI, the original calls itself ASCII chart because it limits itself to ASCII - https://en.wikipedia.org/wiki/ASCII

However, the curved shapes are from https://en.wikipedia.org/wiki/Code_page_866 which originated from the USSR and was used in DOS and OS/2 to write Cyrillic script.

I honestly didn't know until I searched for it; I was curious and didn't recognize the characters.