Should add ability to put tick marks inside and outside by function call. Currently, requires modifying the record's fig_dict directly. More info below about similar plotly syntax. ** https://community.plotly.com/t/customize-ticks-with-and-without-labels/58477 fig.update_yaxes(linewidth=0.5, ticks="outside", tickwidth=0.5, tickcolor='black', ticklen=5, dtick=0.5, tickfont_size=22, ) There are also some other things like making the tick marks an array.