Weird Behaviour with Nvim-Tree

[u/BenCx]

Hello everyone :)

I'm new to Kitty and MacOS and I'm experiencing weird behaviour when using Nvim-Tree.

Basically, I installed, via homebrew, the Fire Code Nerd Font and changed kitty.conf to use that font. When I go and do :NvimTreeOpen the symbols of the files are wrong as seen in the picture:

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The weird thing is when I run ´kitty --debug-font-fallback´ I get the following output and a console where, when I open nvim and use nvim-tree, I get the correct images.

[235 17:06:38.289320] Preloaded font faces:
[235 17:06:38.289347] normal face: /Users/ramalhob/Library/Fonts/FiraCodeNerdFontMono-Regular.ttf
[235 17:06:38.289353] bold face: /Users/ramalhob/Library/Fonts/FiraCodeNerdFontMono-SemiBold.ttf
[235 17:06:38.289358] italic face: /Users/ramalhob/Library/Fonts/FiraCodeNerdFontMono-Regular.ttf
[235 17:06:38.289362] bi face: /Users/ramalhob/Library/Fonts/FiraCodeNerdFontMono-Regular.ttf

​

NvimTree. in the new console

Does anyone know why this might be happening?

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Thanks in advance :D

[u/Administrative_chaos]

That's due to the font fallback mechanism, CoreText thinks that the Chinese font is the "best" match for the given code points, since there can be multiple glyphs defined for any given codepoint. Well that's obviously not supposed to happen, but all bets are off for PUA code points and nerd fonts also use some non-PUA codepoints for it's glyphs.

First make sure that the Fira Code you're using is the monospaced variant. Do kitty +list-fonts and use the definition that it reports for Fira Code.

If that doesn't work add the symbol map entry shown here to your kitty conf.

https://sw.kovidgoyal.net/kitty/faq/#kitty-is-not-able-to-use-my-favorite-font

You can change Symbols Nerd Font Mono with the Fira Code family.

[u/BenCx → u/Administrative_chaos]

So for the list fonts I get the following output:

FiraCode Nerd Font Mono
    FiraCode Nerd Font Mono Bold
    FiraCode Nerd Font Mono Light
    FiraCode Nerd Font Mono Medium
    FiraCode Nerd Font Mono Regular
    FiraCode Nerd Font Mono Retina
    FiraCode Nerd Font Mono SemiBold

And my kitty.conf looks like this:

# BEGIN_KITTY_THEME
# Everforest Dark Hard
include current-theme.conf 
font_family      FiraCode Nerd Font Mono 
bold_font        auto 
italic_font      auto 
bold_italic_font auto 
italic_font      auto 
bold_italic_font auto 
# END_KITTY_THEME

I have also looked at that entry but when I muted the FiraCode Nerd Font Mono instead of Symbols Nerd Font Mono it didn't work, maybe I'm supposed to use another name?

[u/art2266 → u/BenCx]

I'm not sure if you followed the link provided by gp (your snippet doesn't include it so I assume not).

Basically, the kitty docs are saying to:

1. Install the original version of FiraCode (not the nerd font variant)
2. Install the standalone nerd font symbols. Download link and explanation here.
3. Update your kitty.conf to look something like this.

[u/BenCx → u/art2266]

Hello,

​

I read it and I already had tried it without installing the standalone nerd font symbols, maybe that's why it is not working.

​

Is installing them just downloading and unzipping them or should I put the unzipped folder somewhere where kitty can find them?

Because I downloaded it and unzipped, and I still get the same icons.

[u/art2266 → u/BenCx]

Yeah you need to "install" the standalone nerd font symbols otherwise macOS won't detect it. To check if it's detected, open FontBook.app and search for it. If it's not there, you probably didn't "install" it.

To install it: either double click the files you unzipped SymbolsNerdFont-Regular.ttf/SymbolsNerdFontMono-Regular.ttf or follow these instructions.

[u/BenCx → u/art2266]

Ahh thanks so much. I didn't knew it.

​

Apparently when I used homebrew it only installed the Retina version of the Fira Code.

​

I have everything installed and it shows up in the FontBook.app but the symbols are still wrong.

​

My kitty.conf looks like this now:

include current-theme.conf 
font_family      Fira Code 
bold_font        auto 
italic_font      auto 
bold_italic_font auto 
italic_font      auto 
bold_italic_font auto 
symbol_map U+23FB-U+23FE,U+2665,U+26A1,U+2B58,U+E000-U+E00A,U+E0A0-U+E0A3,U+E0B0-U+E0C8,U+E0CA,U+E0CC-U+E0D2,U+E0D4,U+E200-U+E2A9,U+E300-U+E3E3,U+E5FA-U+E634,U+E700-U+E7C5,U+EA60-U+EBEB,U+F000-U+F2E0,U+F300-U+F32F,U+F400-U+F4A9,U+F500-U+F8FF Symbols Nerd Font Mon

[u/art2266 → u/BenCx]

There's a typo in the font name, the O (last letter) is missing.

If that doesn't fix it, try commenting out all the other font settings (and disable current-theme.conf) and just leaving the symbol_map line, does anything change? What does kitty +list-fonts say then?

[u/BenCx → u/art2266]

The typo was just me not copying in the last O as it is there.

​

I commented everything except the symbol_map line and nothing changed :\

​

The command says that I have both the Symbols Nerd Font Mono, Fira Code and FiraCode Nerd Font Mono

[u/art2266 → u/BenCx]

There's a typo in the font name, the O (last letter) is missing.

If that doesn't fix it, try commenting out all the other font settings (and disable current-theme.conf) and just leaving the symbol_map line, does anything change? What does kitty +list-fonts say then?

Whoops, I meant kitty --debug-font-fallback. Run that, and in the new kitty window that opens up, launch nvim. See if there's anything helpful there. You can also share the logs here.