tonsky / tonsky/FiraCode

{a, i, o, u}tilde unreadable on small sizes of Medium

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Clojure
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Description

There's something wrong with the tilde on FiraCode Medium. The tildes on all the vowels except "e" are very flat and hard to differentiate from macrons if the font's pixelsize is up to around 18.
The other variants don't suffer from this issue (although they're still not as good as other fonts like say Office Code Pro in this aspect, sorry), plus one letter is fine, so I think it's a bug.

I used Suckless term to test Medium versus Regular with pixelsize 16 on the FiraCode 6.2 release I downloaded and installed from this repository, it's what I use. If you open the images with an image viewer and zoom in a bit, the effect is still visible, so you should be able to see it even if your pixel density is higher than mine (I have a 1080p 23inch monitor).
st -f 'FiraCode Medium:pixelsize=16'
Medium
st -f 'FiraCode:pixelsize=16'
Regular

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Research direction

Reproduce the issue in Suckless terminal with FiraCode Medium:pixelsize=16 and compare the supplied Medium and Regular screenshots, focusing on the tilde glyphs in a, i, o, and u versus e. Determine which font source or glyph definitions control these shapes; done means the affected tildes remain distinguishable from macrons at small sizes without regressing the other variants.

Written by the indexing model from the issue text.

Assessment

Domain
design
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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