Is there a list of all the font features supported and their meaning?

[ecerulm]

From https://github.com/tonsky/FiraCode/tree/master/features
I can see calt, 'cv01, cv02`, etc but I don't see a textual explanation of what those features are supposed to do.

For JetBrains Mono they have this page https://github.com/JetBrains/JetBrainsMono/wiki/OpenType-features where they explain the font features available and what they do.

[tonsky]

There’s a picture in the README

[ecerulm]

Yes, I see, since they are in the image I was not able to find (by text search) .

I created #1514 to add calt, onum, zero, cv01, ss01 to the README.md so that it's easier to find in the future.

By the way calt in particular I don't think it's explained in the images either, to understand that that does you need to read the files at https://github.com/tonsky/FiraCode/tree/master/features/calt , right? I would be good to add some description of calt to the README.md or yet another image that shows what calt does.

[tonsky]

calt turns everything off, probably not something you would want with Fira Code

[ecerulm]

But +calt does not turn everything off, does it? I think calt is enabled by default, I tried with +calt and -> is shown as a continuous arrow, when I try with -calt there is distinct hyphen and angle bracket.

If you want I can write in the README.md something like calt (contextual alternates) is enabled by default, disabling this feature will remove all ligatures/arrows (not recommended).

Also I discovered the https://otf.show site where it's easy to see the effect of the standard opentype font features that can be enabled/disabled in Fira Code

• calt: https://otf.show/calt?font=Fira%20Code
• onum: https://otf.show/onum?font=Fira%20Code
• frac: https://otf.show/frac?font=Fira%20Code
• zero: https://otf.show/zero?font=Fira%20Code

Do you want me to link to those from the README?

[tonsky]

I think we’re fine as it is