1. pip install jupyterthemes
2. jt -t chesterish -fs 16 -nfs 14 -tfs 14 -ofs 16 -dfs 14 -cellw 1250 -T -N -kl -f anka -nf anka -tf ankajt -t chesterish
!pip install jupyterthemes
!jt -t <theme-name>
conda install -c conda-forge jupyterthemes
# or pip install jupyterthemes
import jupyterthemes as jt
print(jt.get_themes()) # to get the list of available themes
jt.install_theme('chesterish') #jt.install_theme('my favourite theme') to apply your theme # Jupter Darcula Theme
pip install JLDraculaconda install jupyterthemes