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plotly hoverlabel color transparency

Is it possible to format hoverlabel so that the background color is transparent & it's possible to see the plot through the labels?

I can set it to a solid color by e.g. hoverlabel = list(bgcolor = '#fff') but looks like if I try to add transparency, that part of the color string gets ignored. Same with bgcolor = 'rgba(255,255,255,0.05)', doesn't work either. Looks like for markers there is opacity setting, but not for hoverlabels.

Thanks!!

Solution

  • I have found (in plotly python), that if you pass hovermode = "x unified" in layout, then if you set bgcolor to some rgba value that includes transparency, it does work! I am not aware of the R code for that but it should be easy to figure out. Here's what it looks like (pretty sick imo!) -

    enter image description here

    Here's the (python) code-

    fig.update_layout(hovermode='x unified', legend=dict(title= None), hoverlabel=dict(bgcolor='rgba(255,255,255,0.75)',
                                                                                  font=dict(color='black')))