Choosing a font in JupyterLab, like is possible with Jupyter

[cormullion]

In a plain Jupyter notebook, it was possible to specify a suitable font by adding it to ~/.jupyter/custom/custom.css. This allowed me to specify a font such as JuliaMono[¹] that can correctly handle special characters, and this allowed me to use packages such as UnicodePlots.jl:

Unfortunately I can’t find out where the equivalent file for JupyterLab is.

Do the settings have a place where you can specify a font file?

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¹ more information

[cormullion]

(continued)

In JupyterLab:

here, Menlo isn’t working as well.