How to change the color scheme in Jupyter?

Question

I want to change the notebook to the dark mode such that all the extensions are kept. Also, I need that the position of the cells continued to be centered. I tried out the solutions from other answers such

jt -t chesterish

This one removes all the extenssions.

Answer 1

1. cd ~/.jupyter

   Go to .jupyter in the home dir (for example, C:\User\metchaikovsky or /Users/me_tchaikovsky)

2. mkdir custom

   Inside .jupyter, make a dir called custom (If there isn't such a dir)

3. vi custom.css

   Create a CSS file named custom.css, paste this file (Pastebin may warn you about potentially offensive content, don't worry, it's just an innocent CSS file) into custom.css and save it.

4. Open a new jupyter notebook and enjoy!