[Not super savvy in that environment, so I might be crossing some wires here.]
Also called the “hyphen-minus” for code editors (perhaps with a PC keyboard?).
Is this just the /hyphen (u002D next to the /zero key) on the Mac keyboard, or is it just the /minus (u2212)?
Basically I’m wondering if or can I treat that as separate character that can have a slightly different design, or is it mapped to one of those others and needs to be altered there?
Thanks Georg. So it appears they are effectively one and the same character, and alterations made to the /hyphen (002D) will be present for the hex 45 character.
2D is simply the hexadecimal representation of the number 45, and Unicode values are given in hexadecimal rather than decimal numbers (zero-padded to four characters, so 002D instead of just 2D).
The glyph /minus, hexadecimal 2212, would be decimal 8722 instead.