JupyterLab Theme Customization

CustomizeJLabTheme.ipynb

@jasongrout Do you know how these changes can be made permanent? I've looked through the Jupyter Lab folder in site-packages but I only find index.css and editing that file doesn't seem to have any effect.

A more permanent solution is probably best left to a theme extension.

I agree with @ian-r-rose. Make a new theme extension using your new variables.css file and install it wherever you like!

Hi @jasongrout, may you specify if it's possible to install a theme extension without having to rebuild the whole extensions stack?

Referring to jupyterlab/jupyterlab#4064, I am afraid this route only works for single users in control of their environment, but not for users of a central system, in need of a custom theme.

Thanks

Hello, i've tested and apparently it did not work

I've made the test with the file given here:

jupyterlab/jupyterlab#3844 (comment)

I run the cell with the code, the file IS on the folder of the notebook and IS in .CSS, but when i execute it, nothing happens. Just the message "Customized changes loaded" but nothing happens. Did the code broke or something? pls help. thanks