Minus sign instead of hyphen for negative numbers

[vanillajonathan]

Example −123 instead of -123. This would be more typographically correct, and would make it easier to discern negative numbers from positive number.

Unicode symbol: U+2212

[minhhungit]

I have no idea about this problem, honestly I am not sure if it is problem actually, my lack of knowledge about typographically.

IMH I think it is normal because we don't change font of the minus char, it has same font with number/text (default console font)

Anyway, this kind of problem can be resolved using Formatter

[vanillajonathan]

Yeah, I think this can be solved using formatter.

builder.WithFormatter(col_index, (text) => text.StartsWith('-') ? text.Replace('-', '−') : text);