Missing syntax highlighting in Polyglot Notebook extension when launched from dev container

[netcore-jroger]

Describe the bug

Please provide as much information as you can.

Please complete the following:

Which version of .NET Interactive are you using? (In a notebook, run the #!about magic command. ):

• OS
  • Windows 11
  • Windows 10
  • macOS
  • Linux (Please specify distro)
  • iOS
  • Android
• Browser
  • Chrome
  • Edge
  • Firefox
  • Safari
• Frontend
  • Jupyter Notebook
  • Jupyter Lab
  • nteract
  • Visual Studio Code
  • Visual Studio Code Insiders
  • Visual Studio
  • Other (please specify)

Polyglot Notebooks Version: v1.0.4102020

Version: 1.75.0 (user setup)
Commit: e2816fe719a4026ffa1ee0189dc89bdfdbafb164
Date: 2023-02-01T15:23:45.584Z
Electron: 19.1.9
Chromium: 102.0.5005.194
Node.js: 16.14.2
V8: 10.2.154.23-electron.0
OS: Windows_NT x64 10.0.19045
Sandboxed: No

Screenshots

[colombod]

can you share a bigger screen shot where I can se the selected kernel?
Should be like this

[netcore-jroger]

@colombod I also have IntelliSense when I write code, but there is no syntax highlighting.

[BoreasHe]

It happens on my M2 as well.

Version: 1.75.1 (Universal)
Commit: 441438abd1ac652551dbe4d408dfcec8a499b8bf
Date: 2023-02-08T21:34:59.000Z (6 days ago)
Electron: 19.1.9
Chromium: 102.0.5005.194
Node.js: 16.14.2
V8: 10.2.154.23-electron.0
OS: Darwin arm64 22.3.0
Sandboxed: No

[tulx17]

Same here on WSL.
In recent versions(since the very beginning of Jan 23, when I had this issue), syntax highlighting seem to be fine before .NET Interactive extension activation (tested by creating a new polyglot notebook with .ipynb, put some code in and reload window to see the colors disappear after this extension loaded).
If I downgrade the extension to 1.0.3553070(labeled as 3 months ago), basic language features like syntax highlighting works but suggestions still doesn't have any styling.
About the extensions that I currently enabled, almost all of them are remote development support published by Microsoft.

[Peluko]

Same here. But onlye when working on a dev container. When working local on Windows 10, it works fine.

[HowardvanRooijen]

+1

I'm seeing it in a PN inside a DevContainer, running in WSL Debian.

[nicro950]

Windows 10, vs code here as well with "about" information:

.NET Interactive
© 2020 Microsoft Corporation
Version: 1.0.440301+8915ad98609cad23d5d81765041c2a895afb4782
Library version: 1.0.0-beta.23403.1+8915ad98609cad23d5d81765041c2a895afb4782
Build date: 2023-08-30T11:26:39.5926919Z
https://github.com/dotnet/interactive

In my case it looks like the vs code theme is the culprit for the missing colors. If i change to one of the built in ones then the colors are displayed, but if i choose a custom theme like Atom one Dark Theme, then all the colors disappear.

Theme: Dark (visual studio)

Theme: Atom One Dark