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Px.choropleth hover: template and highlight


I am fairly new to plotly / dash, but already a big fan!

Two questions:

  1. in the example for Indexing by GeoJSON Properties, the hover can easily be modified by including e.g. the lines
    customdata= np.stack((df['district'], df['Bergeron']), axis=-1),
        "Votes: %{customdata[1]}"

but switching to categorical values / discrete colors breaks the new hovertemplate (displays incorrect information). How come?

  1. also for a choropleth map, what would be the best way to outline / highlight a polygon (district) on hover?


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