How to reset jupyter notebook theme to default?

Question

I'm using the jupyter notebook installed with Anaconda (I'm on Mac). Few days ago, I wanted to change the theme to have a dark background, and I followed the instructions here. Namely, I've downloaded the theme custom.css and placed it in ~/.jupyter/custom/. It worked very well.

I liked the theme, but I would like to go back to the default one (this one does not show the main toolbar, among other things). I tried to remove the custom.css from its folder, I reset my terminal, but nothing changes! I'm guessing that jupyter keeps a copy of the themes somewhere that I should delete, but I can't find it.

I have also tried uninstalling jupyter and reinstalling, following the commands:

conda update conda conda uninstall ipython conda install jupyter 

Again, no change. I'm stuck with my black background theme with no toolbar.

Answer 1

An easier way might be to do:

pip install jupyterthemes 

Now you can choose from the following given themes and activate it like this

# list available themes # onedork | grade3 | oceans16 | chesterish | monokai | solarizedl | solarizedd jt -t <THEME_NAME> 

In order to reset your theme to the default theme just use

jt -r 

For all information and more, visit github.com/dunovank/jupyter-themes

Hope this helps!