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Nerd fonts overlap incorrectly #20136

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opened 2026-01-31 07:04:44 +00:00 by claunia · 5 comments
claunia commented 2026-01-31 07:04:44 +00:00
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Originally created by @TheGamer1002 on GitHub (Jun 23, 2023).

Windows Terminal version

1.17.11461.0

Windows build number

10.0.22621.0

Other Software

Technically, this can be reproduced in literally anything, but I first experienced it in the powerlevel10k installer in wsl.

Steps to reproduce

  1. Use a nerd font that is dynamic (i.e. not mono)
  2. Paste the following (gotten from powerlevel10k initialization screen): XXXXXXXXX
  3. Notice that the icons do not fit between the crosses

Expected Behavior

According to the initialization script, the icons should be very close to the crosses, but there should be no overlap.

Actual Behavior

The icons overlap with the crosses.
image

Originally created by @TheGamer1002 on GitHub (Jun 23, 2023). ### Windows Terminal version 1.17.11461.0 ### Windows build number 10.0.22621.0 ### Other Software Technically, this can be reproduced in literally anything, but I first experienced it in the [powerlevel10k](https://github.com/romkatv/powerlevel10k) installer in wsl. ### Steps to reproduce 1. Use a nerd font that is dynamic (i.e. not mono) 2. Paste the following (gotten from powerlevel10k initialization screen): XXXXXXXXX 3. Notice that the icons do not fit between the crosses ### Expected Behavior According to the initialization script, the icons should be very close to the crosses, but there should be no overlap. ### Actual Behavior The icons overlap with the crosses. ![image](https://github.com/microsoft/terminal/assets/48131223/33397c43-cd27-4448-b794-f714635b09b7)
claunia added the Needs-TriageIssue-Bug labels 2026-01-31 07:04:45 +00:00
claunia commented 2026-01-31 07:04:46 +00:00
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@237dmitry commented on GitHub (Jun 23, 2023):

In other terminals is the same. Tested on linux in Tilix, xfce4-terminal and alacritty.

@237dmitry commented on GitHub (Jun 23, 2023): In other terminals is the same. Tested on linux in Tilix, xfce4-terminal and alacritty.
claunia commented 2026-01-31 07:04:46 +00:00
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@TheGamer1002 commented on GitHub (Jun 24, 2023):

That's odd. I've had success with WezTerm in the past.

@TheGamer1002 commented on GitHub (Jun 24, 2023): That's odd. I've had success with WezTerm in the past.
claunia commented 2026-01-31 07:04:46 +00:00
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@lhecker commented on GitHub (Jun 24, 2023):

But did you use the same non-Mono (non-NFM) font in WezTerm? Because those glyphs are 2 columns wide and WezTerm defaults to simply cutting their right half off (see allow_square_glyphs_to_overflow_width). Most terminals I know draw these non-NFM glyphs either the way it looks like in your screenshot or cut them off to only occupy 1 column. This is why many powerline setups append a single whitespace after such glyphs. This will allow these wide glyphs to be drawn in 2 columns without any apparent overlap. If you use the NF variant, responding with "No. Some icons overlap neighbouring crosses." is completely fine and expected as far as I know.

@lhecker commented on GitHub (Jun 24, 2023): But did you use the same non-Mono (non-NFM) font in WezTerm? Because those glyphs are 2 columns wide and WezTerm defaults to simply cutting their right half off (see `allow_square_glyphs_to_overflow_width`). Most terminals I know draw these non-NFM glyphs either the way it looks like in your screenshot or cut them off to only occupy 1 column. This is why many powerline setups append a single whitespace after such glyphs. This will allow these wide glyphs to be drawn in 2 columns without any apparent overlap. If you use the NF variant, responding with "No. Some icons overlap neighbouring crosses." is completely fine and expected as far as I know.
claunia commented 2026-01-31 07:04:46 +00:00
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@TheGamer1002 commented on GitHub (Jun 24, 2023):

Hm, I suppose I stand corrected. Maybe my Linux box is using the NL variation, though in that I saw that the icons fit snugly into the crosses (the end of one X came just after the start of an icon). I might be going crazy 🙃

@TheGamer1002 commented on GitHub (Jun 24, 2023): Hm, I suppose I stand corrected. Maybe my Linux box is using the NL variation, though in that I saw that the icons fit snugly into the crosses (the end of one X came just after the start of an icon). I might be going crazy 🙃
claunia commented 2026-01-31 07:04:46 +00:00
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@lhecker commented on GitHub (Jun 24, 2023):

I'm fairly certain that the above rendering is expected for the non-Mono variant. I'll close the issue, but please let me know if you find any reproducible issues with it after all. 🙂

@lhecker commented on GitHub (Jun 24, 2023): I'm fairly certain that the above rendering is expected for the non-Mono variant. I'll close the issue, but please let me know if you find any reproducible issues with it after all. 🙂
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Reference: starred/terminal#20136
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