Code Server Font Patch

This patch enables code-server to use Cascadia Code with italic and cursive support.

It works with offline font files and automatically injects the necessary @font-face rules to properly render italics and cursive glyphs.

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Screenshots

code-server running on termux proot-distro (Ubuntu)

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Installation

1. Clone this repository:

git clone https://github.com/delmsyap/code-server-font-patch-cascadia.git
cd code-server-font-patch-cascadia

2. Cascadia Code font files are located in the fonts/cascadia folder next to the script:

fonts/cascadia/
├── CascadiaCode.woff2
└── CascadiaCodeItalic.woff2

3. Run the patch script. The script automatically detects your code-server installation path:

❯ chmod +x patch.sh
❯ ./patch.sh

[*] Installing existing Cascadia Code fonts
[*] Copying fonts
[*] Backing up workbench.html
[*] Injecting @font-face
[✓] Cascadia Code installed successfully

👉 Add this to settings.json:
{
  "editor.fontFamily": "'Cascadia Code', monospace",
  "editor.fontLigatures": "'calt', 'ss01'"
}

The script will copy the fonts to the code-server _static folder, inject the CSS, and back up workbench.html. No manual editing of workbench.html or hardcoding of paths is required.

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Settings

After installation, configure your editor in settings.json to enable Cascadia Code with cursive italics:

{
  "editor.fontFamily": "'Cascadia Code', monospace",
  "terminal.integrated.fontFamily": "'Cascadia Code', monospace",
  "editor.fontLigatures": "'calt', 'ss01'"
}

'calt', 'ss01' enables Cascadia Code’s cursive italic glyphs.

Optional: add 'ss02' for additional stylistic flourishes.

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Verification

1. Open code-server and check comments or italic tokens — letters like f, k, y should appear curvy/cursive.

2. Open Developer Tools → Network → Font to confirm:

CascadiaCode.woff2       → 200 OK
CascadiaCodeItalic.woff2 → 200 OK

3. or test it directly with curl to confirm if fonts are loaded successfully:

❯ curl -I http://localhost:8080/_static/src/browser/media/fonts/CascadiaCode.woff2

HTTP/1.1 200 OK
Accept-Ranges: bytes
Cache-Control: public, max-age=0
Last-Modified: Thu, 29 Jan 2026 12:36:22 GMT
ETag: W/"356c8-19c09c131d9"
Content-Type: font/woff2
Content-Length: 218824
Date: Thu, 29 Jan 2026 17:41:49 GMT
Connection: keep-alive
Keep-Alive: timeout=5


❯ curl -I http://localhost:8080/_static/src/browser/media/fonts/CascadiaCodeItalic.woff2

HTTP/1.1 200 OK
Accept-Ranges: bytes
Cache-Control: public, max-age=0
Last-Modified: Thu, 29 Jan 2026 12:36:22 GMT
ETag: W/"27010-19c09c131d1"
Content-Type: font/woff2
Content-Length: 159760
Date: Thu, 29 Jan 2026 17:47:12 GMT
Connection: keep-alive
Keep-Alive: timeout=5

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Notes

Fonts are served offline — no Google Fonts dependency.

Works on any Linux system or Termux environment.

Safe for re-use — workbench.html is backed up before CSS injection.