Bokeh pane - Theme not applied

I’m following the tutorial panel/examples/reference/panes/Bokeh.ipynb

At the end of a code block there are the following lines of code:

bokeh_pane = pn.pane.Bokeh(p, theme="dark_minimal")

Unfortunately, no dark theme is applied to Bokeh. Am I the only one experiencing this problem? Is the tutorial out-of-date? What’s the best way to apply a theme to Bokeh pane?