Jupyter-themes: Changing theme works but changing fonts doesn't

[navicenna]

I tried running jt -t chesterish and this command changed my Jupyter notebook theme after a refresh.

However, when I restore via jt -r and then just try to change the font, it doesn't change anything, e.g. jt -f oxygen -fs 14.

What could be causing this issue?

[navicenna]

Actually I think I found the issue. Changing the font along with changing the theme works as expected. But when only changing the font, it doesn't modify the custom CSS file thoroughly enough to handle the new font.

A workaround is to add something like:

.CodeMirror {
  font-family: 'PT Mono';
  font-size: 14pt;
}

to the custom CSS file, assuming that you've already run jt -f ptmono.