When generating a color theme using the Generate Color Theme From Custom Settings in VSCode and pasting the resulting output into the Custom VSCode Theme setting I get the error Problem initializing template in editor: Illegal value for token color:.
I am using the Material theme in VS Code.
The color theme that VSCode generates: https://gist.github.com/Bassetts/f824270f99d4fd205744a4aa213fe851

| Software | Name/Version|
| ---------------- | ---------- |
| 小odesandbox | PROD-1541005726-0dba21e
| Browser | Firefox Nightly 65.0a1 (2018-11-01) (64-bit)
| Operating System | macOS Mojave 10.14.1
| Visual Studio Code | 1.29.0-insider
Found the issue here, VSCode has trouble handling the empty values ("").
Until we deploy a fix, a workaround would be to find all "" values and delete those lines (I think there are 3).
Got same error when using VSCode, Jupyter Notebook and color theme Atom One Dark:

VSCode default color theme is OK

Same error using Atom one dark theme. It was working without error couple of days ago
@aht007 Same here with Material Theme Darker. Shouldn't we move this issue to main VSCode repository?
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Most helpful comment
Found the issue here, VSCode has trouble handling the empty values (
"").Until we deploy a fix, a workaround would be to find all
""values and delete those lines (I think there are 3).