jupyter-themes: `Toggle Header` and `Toggle Toolbar` do not work in grade3 theme?

@xiahk make sure you have the latest version installed (pip install --upgrade jupyterthemes) and try jt -t grade3 -T

Still not working?

jt -t chesterish -N -T -kl worked for me too (Black theme)

If you go to the View dropdown menu and select ‘Toggle Toolbar’, does that work? (After running jt -t grade3 -T)

I suppose you should try -T option first.

jt -t grade3 -T worked for me, too.

I have the same issue these days. Previously when use -T and -N the toggle bars just show up. But recently I found after I command them I have to go back to the notebook to click the toggle header in the command banner at the top.