`mo.app_meta().theme` doesn't respect VS Code's theming

[Antyos]

Describe the bug

Using the default dark color scheme in VS Code, Marimo's mo.app_meta().theme is returning light when one would expect it to be dark.

Environment

Details

marimo VS Code Extension Diagnostics
=====================================

Language Server (LSP):
	UV Bin: Bundled (c:\Users\Andrew\.vscode\extensions\marimo-team.vscode-marimo-0.10.4-win32-x64\bundled\libs\bin\uv.exe)
	UV: 0.9.26 (ee4f00362 2026-01-15) ✓
	Using bundled marimo-lsp via uvx

Python Extension:
	Interpreter: c:\Users\Andrew\Code\project\code\.venv\Scripts\python.exe
	Version: 3.13.9.final.0
	Environment: VirtualEnvironment (biaxtic)

Python Language Server (ty):
	Status: running ✓
	Version: 0.0.15 (eb43dff06 2026-02-04)
	Python: c:\Users\Andrew\Code\project\code\.venv\Scripts\python.exe (3.13.9.final.0)

Ruff Language Server:
	Status: running ✓
	Version: 0.15.0

Extension Configuration:
	Version: 0.10.4 
	UV integration disabled: false 

System Information:
	Host: desktop 
	IDE: Visual Studio Code 
	IDE version: 1.109.4 
	Platform: win32 
	Architecture: x64 
	Node version: v22.21.1 

Common Issues:
	1. If notebooks won't open:
		- Check Python interpreter is selected
		- Ensure marimo and pyzmq are installed
		- Check 'marimo-lsp' output channel for errors
	2. If features are missing:
		 - Ensure marimo version is >= 0.19.10
		- Try reloading the window

Steps to reproduce

No response