Description

IfSharp currently hardcodes the CodeMirror theme for F# as neat, and provides a custom CSS for it. This breaks the standard Jupyter theming ecosystem, which expects the cells to have a top-level .cm-s-ipython class. Because of that, projects like jupyter-themes do not work with F# (even though they work with C#, R, Julia, and other third-party kernels).

Suggestion

Remove the hardcoded theme, and change all .cm-s-neat in custom.css to .cm-s-ipython.

If you agree that this is reasonable, I can easily make a PR.