I'd like to have your opinion and/or experience on this matter: are there glyphs you don't italicize when you create an italic master?
I think of glyphs like "copyright", "registered", "trademark", "estimated",... (for legal reasons maybe).
Or other glyphs for other reasons?
Thanks in advance!
The variable font I'm working on at the present is far from traditional (slanted and curved). Having read the previous discussions, I think I will leave the bars, registered, copyright, trade mark and estimated upright and italicize and curve the other ones, even the math operators as this is not a scientific font.
Of course, some folks also keep brackets and braces vertical in italics as well.
For what it's worth, I always slant the bar in an italic font. If someone wants the upright version, they can always choose it from the Roman font. If I use the upright bar in both, it removes the options.
I don't think there are black-and-white, one-size-fits-all rules for these kinds of questions.
It’s probably best to give users the choice. Spacing is also a big deal. If you’re putting unslanted symbols in an italic font, you had better give the generous and correct spacing so they look their best in that context.