Open type features documentation?

[addy419]

I love using Jetbrains Mono because it is one the most aesthetically pleasing fonts. Although with some caveats like lower-case "l", which I prefer to be straight instead of curvy. After taking a look at issues like #8 and #238, I was wondering if there are other opentype features or stylistic sets that are supported by Jetbrains Mono like the slashed 0. If so, can we get a document them?

[philippnurullin]

Hi @addy419 . Right now the only OpenType feature supported by JetBrains Mono is:

• Contextual alternates (the ligatures are here);
• Slashed zero;
• Localized forms;
• Subscript and superscript numbers;
• Case sensitive forms (they are fairly dumb in current implementation, I will make them a bit context aware later);

The only one feature making a big impact is Slashed zero. But it have an issue itself. So I feel like there is not much documentation needed, for now.
At the next big release I'm aiming at adding a lot of symbol alternates and form a couple of Stylistic sets from them. It will be fair to add the list of them then.

[yvvt0379]

So what's the issue of the slashed zero? I tried, and found no error.

[addy419]

@philippnurullin Thank you for the info. Yes, it makes sense to add the documentation along with stylistic sets. Should I leave this issue open?

[philippnurullin]

@CodeCrazy-ywt I was referring to the #8. If anybody is interest in slashed zero he will probably will end in that issue.

@addy419 Yes, sure. Let's leave it open until the documentation will be added.

[yvvt0379]

@CodeCrazy-ywt I was referring to the #8. If anybody is interest in slashed zero he will probably will end in that issue.

You mean 0 is hardly distinguishable with 8 in small sizes? IMHO it's not a big issue because normally we don't code in too small sizes which is harmful to eyes, and simply turning up the font sizes will solve this problem.

[shilangyu]

I just found out by accident that JetBrainsMono supports font features by having them enabled for a different font long time ago in my editor, and upgrading JetBrainsMono to v2.304 suddenly made it look weird. I assumed that the new version just changed the font dramatically. But after some digging I found out it was because of the old font features I had enabled which now happened to apply to v2.304.

So I feel like there is not much documentation needed, for now.

Now that the list of character variants has grown, is it time for some documentation for it? I could not found anything about the codes.

[philippnurullin]

Made a page in Wiki. https://github.com/JetBrains/JetBrainsMono/wiki/OpenType-features
Later we will add images so it becomes more clear & pretty.
Hope this will help for now.